Gen.Trojan.Heur.9y1vqu9UYmi_44aef736cb

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:308
ilavg.exe:468

The Trojan injects its code into the following process(es):No processes have been created.

Mutexes

The following mutexes were created/opened:No objects were found.

File activity

The process %original file name%.exe:308 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\All Users\Application Data\ilavg.exe (1018898 bytes)
%Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (960207 bytes)

The process ilavg.exe:468 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

C:\AUTOEXEC.BAT .exe (1963130 bytes)
C:\MSDOS.SYS .exe (1963130 bytes)
C:\IO.SYS .exe (1963130 bytes)
C:\boot.ini .exe (1963130 bytes)
%Documents and Settings% .exe (1963130 bytes)
C:\RECYCLER .exe (1963130 bytes)
C:\ntldr .exe (1963130 bytes)
C:\original .exe (1963130 bytes)
C:\%original file name%.exe .exe (1963130 bytes)
C:\totalcmd .exe (1963130 bytes)
C:\NTDETECT.COM .exe (1963130 bytes)
C:\System Volume Information .exe (1963130 bytes)
C:\CONFIG.SYS .exe (1963130 bytes)
C:\marker .exe (1963130 bytes)
%Program Files% .exe (1963130 bytes)
%WinDir% .exe (1963130 bytes)
C:\pagefile.sys .exe (1963130 bytes)

The Trojan deletes the following file(s):

C:\Mirax (0 bytes)
C:\Miray (0 bytes)
C:\Mirat (0 bytes)
C:\Mirav (0 bytes)
C:\Miraw (0 bytes)
C:\Miraq (0 bytes)
C:\Mirar (0 bytes)
C:\Miras (0 bytes)
C:\Miral (0 bytes)
C:\Miram (0 bytes)
C:\Miran (0 bytes)
C:\Mirao (0 bytes)
C:\Miraj (0 bytes)
C:\Mirae (0 bytes)
C:\Miraf (0 bytes)
C:\Mirag (0 bytes)
C:\Miraa (0 bytes)
C:\Mirab (0 bytes)
C:\Mirac (0 bytes)

Registry activity

The process %original file name%.exe:308 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "DE 31 63 65 61 9C A7 60 03 9A 8F 33 E2 4C 2D 55"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

The process ilavg.exe:468 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\ilavg.exe"

Dropped PE files

MD5	File path
a79f7d30ef1f5b06c0daa782bc1117fe	c:\%original file name%.exe .exe
75b0893fadf3a3a7f81ebbd2cb661bb9	c:\AUTOEXEC.BAT .exe
2674e02a62f645e0eb1769cfa41851de	c:\CONFIG.SYS .exe
87556b64d64fd692157a735da53f130f	c:\Documents and Settings .exe
2549139ceeb2c40c2ea0aeb04527d833	c:\Documents and Settings\All Users\Application Data\Saaaalamm\Mira.h
309c40a8a800814fae12448301da2e7a	c:\Documents and Settings\All Users\Application Data\ilavg.exe
5b7248ebed704a5512eb5b06536b701c	c:\IO.SYS .exe
498e16108ecefeaf03b4113b1fcb8b38	c:\MSDOS.SYS .exe
b9b555b310ab925ec262c47148656d24	c:\NTDETECT.COM .exe
b02d860b7e759884e700da7bc0d73070	c:\Perl .exe
d6c7fccad96f7759ef2ce01d495ea1fc	c:\Program Files .exe
bf4dee3a488d8507b7cb2396322726b4	c:\RECYCLER .exe
7aed7f71252196df463acac71757bcb9	c:\System Volume Information .exe
6f47664bca7d041f217af34be45fdd00	c:\WINDOWS .exe
a55b7bb362b8c60e0ab035b13d0c4384	c:\boot.ini .exe
3a5e326c235494a5e28cac6c61ab53ac	c:\marker .exe
51cf2f930d59db5ee58dcacf0c82467d	c:\ntldr .exe
1f0cf2c835496d4dd3e0f6ea921c6e86	c:\original .exe
ed5e0195ae1a51d1452f3a8c46e717d5	c:\pagefile.sys .exe
ad86c57893b5e99cc63e15b16c9ecc00	c:\totalcmd .exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

Removals

Remove it with Ad-Aware

1. Click (here) to download and install Ad-Aware Free Antivirus.
2. Update the definition files.
3. Run a full scan of your computer.

Manual removal*

1. Terminate malicious process(es) (How to End a Process With the Task Manager):

   %original file name%.exe:308
   ilavg.exe:468

2. Delete the original Trojan file.
   
3. Delete or disinfect the following files created/modified by the Trojan:

   %Documents and Settings%\All Users\Application Data\ilavg.exe (1018898 bytes)
   %Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (960207 bytes)
   C:\AUTOEXEC.BAT .exe (1963130 bytes)
   C:\MSDOS.SYS .exe (1963130 bytes)
   C:\IO.SYS .exe (1963130 bytes)
   C:\boot.ini .exe (1963130 bytes)
   %Documents and Settings% .exe (1963130 bytes)
   C:\RECYCLER .exe (1963130 bytes)
   C:\ntldr .exe (1963130 bytes)
   C:\original .exe (1963130 bytes)
   C:\%original file name%.exe .exe (1963130 bytes)
   C:\totalcmd .exe (1963130 bytes)
   C:\NTDETECT.COM .exe (1963130 bytes)
   C:\System Volume Information .exe (1963130 bytes)
   C:\CONFIG.SYS .exe (1963130 bytes)
   C:\marker .exe (1963130 bytes)
   %Program Files% .exe (1963130 bytes)
   %WinDir% .exe (1963130 bytes)
   C:\pagefile.sys .exe (1963130 bytes)

4. Delete the following value(s) in the autorun key (How to Work with System Registry):

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\ilavg.exe"

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

VersionInfo

Company Name: Microsoft Corporation
Product Name: Mira Malware
Product Version: 1.0.0.155
Legal Copyright: Microsoft Corporation
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 1.0.0.155
File Description: Mira Malware
Comments:
Language: English

Company Name: Microsoft CorporationProduct Name: Mira MalwareProduct Version: 1.0.0.155Legal Copyright: Microsoft CorporationLegal Trademarks: Original Filename: Internal Name: File Version: 1.0.0.155File Description: Mira MalwareComments: Language: English

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	245368	245760	4.21465	8b164ac8ef3742f37830dc1842275667
.data	249856	608	1024	0.488703	6fda88cf7188a8245a53dfde927250fd
.rdata	253952	9384	9728	3.47165	dbe852009dbd077a9976cb0ecfb9aadf
.bss	266240	18576	0	0	d41d8cd98f00b204e9800998ecf8427e
.idata	286720	2212	2560	2.97703	5e5242c565219f3bd33a6568632559dc
.rsrc	290816	758300	750809	4.89615	969e38dc30d7b4b1bd3efc9762aa1d5e

Dropped from:

9d453cdaf2c78129a691d5e110325c51

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

The Trojan connects to the servers at the folowing location(s):

Strings from Dumps

ilavg.exe_468:

.text

.text

`.data

`.data

.rdata

.rdata

@.bss

@.bss

.idata

.idata

%Documents and Settings%\All Users\Application Data\ilavg.exe

%Documents and Settings%\All Users\Application Data\ilavg.exe

Software\Microsoft\Windows\CurrentVersion\Run

Software\Microsoft\Windows\CurrentVersion\Run

Windows

Windows

Operating System

Operating System

%H:%M:%S

%H:%M:%S

%m/%d/%y

%m/%d/%y

-0123456789

-0123456789

%s:%u: failed assertion `%s'

%s:%u: failed assertion `%s'

RegCloseKey

RegCloseKey

RegOpenKeyA

RegOpenKeyA

ADVAPI32.DLL

ADVAPI32.DLL

KERNEL32.dll

KERNEL32.dll

msvcrt.dll

msvcrt.dll

SHELL32.DLL

SHELL32.DLL