Gen.Trojan.Heur.Vy1vuXPjoji_bdcd361747

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

pejgx.exe:884
%original file name%.exe:1156

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 pejgx.exe:884 makes changes in the file system.

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

C:\AUTOEXEC.BAT .exe (1540319 bytes)
C:\MSDOS.SYS .exe (1540319 bytes)
C:\IO.SYS .exe (1540319 bytes)
C:\boot.ini .exe (1540319 bytes)
%Documents and Settings% .exe (1540319 bytes)
C:\RECYCLER .exe (1540319 bytes)
C:\ntldr .exe (1540319 bytes)
C:\%original file name%.exe .exe (1540319 bytes)
C:\original .exe (1540319 bytes)
C:\totalcmd .exe (1540319 bytes)
C:\NTDETECT.COM .exe (1540319 bytes)
C:\System Volume Information .exe (1540319 bytes)
C:\CONFIG.SYS .exe (1540319 bytes)
C:\marker .exe (1540319 bytes)
%Program Files% .exe (1540319 bytes)
%WinDir% .exe (1540319 bytes)
C:\pagefile.sys .exe (1540319 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:\Mirap (0 bytes)
C:\Mirar (0 bytes)
C:\Miras (0 bytes)
C:\Miram (0 bytes)
C:\Miran (0 bytes)
C:\Mirai (0 bytes)
C:\Miraj (0 bytes)
C:\Mirag (0 bytes)
C:\Miraa (0 bytes)
C:\Mirab (0 bytes)
C:\Mirac (0 bytes)

The process %original file name%.exe:1156 makes changes in the file system.

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

%Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (559962 bytes)
%Documents and Settings%\All Users\Application Data\pejgx.exe (975394 bytes)

Registry activity

The process pejgx.exe:884 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\pejgx.exe"

The process %original file name%.exe:1156 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "F4 C3 8B 75 CB 26 52 DD 1A 6B 3B E7 70 11 49 E3"

[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"

Dropped PE files

MD5	File path
747223088ed2ea304a98b52d72903ace	c:\AUTOEXEC.BAT .exe
984fc236b52da2e26378ba711183ed4e	c:\CONFIG.SYS .exe
7c62e1b9aa2f3428b23e3e912f368cce	c:\Documents and Settings .exe
c126447d0756d3843fe21bc8d1b35083	c:\Documents and Settings\All Users\Application Data\Saaaalamm\Mira.h
59086292585abaa1b6c117fd74b3e4c2	c:\Documents and Settings\All Users\Application Data\pejgx.exe
c23cc55b8b1c11e74bb8968ab3ec903b	c:\IO.SYS .exe
504dea50bc88b2e483a0ef5fe5ff6bff	c:\MSDOS.SYS .exe
a96fbd97456699220aa587080e44936c	c:\NTDETECT.COM .exe
61f103c61f41b184dbf7ed1795ce4522	c:\Perl .exe
bf0690c3d649103f1c3efe14821f4408	c:\Program Files .exe
1ac895103e829eba0e5262babbb0f570	c:\RECYCLER .exe
0364fa18ecc8770618647713d58b5d5a	c:\System Volume Information .exe
9982f3263fbd89dbe8faf37b420ed800	c:\WINDOWS .exe
035408221fa7f13eeaf5f194210c459b	c:\%original file name%.exe .exe
35aa67afb31a4df513b9dafe07184de1	c:\boot.ini .exe
1ef6fbef8d8c5f3841b785c64c402113	c:\marker .exe
92e8616e35085866b8239e487155c135	c:\ntldr .exe
e8275c3b63d103a8c1a96e31159bc75c	c:\original .exe
84832806123c20192d64905d8abc3fa2	c:\pagefile.sys .exe
d7ae1417db34f8de48bdfcc2c5bd4819	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):

   pejgx.exe:884
   %original file name%.exe:1156

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

   C:\AUTOEXEC.BAT .exe (1540319 bytes)
   C:\MSDOS.SYS .exe (1540319 bytes)
   C:\IO.SYS .exe (1540319 bytes)
   C:\boot.ini .exe (1540319 bytes)
   %Documents and Settings% .exe (1540319 bytes)
   C:\RECYCLER .exe (1540319 bytes)
   C:\ntldr .exe (1540319 bytes)
   C:\%original file name%.exe .exe (1540319 bytes)
   C:\original .exe (1540319 bytes)
   C:\totalcmd .exe (1540319 bytes)
   C:\NTDETECT.COM .exe (1540319 bytes)
   C:\System Volume Information .exe (1540319 bytes)
   C:\CONFIG.SYS .exe (1540319 bytes)
   C:\marker .exe (1540319 bytes)
   %Program Files% .exe (1540319 bytes)
   %WinDir% .exe (1540319 bytes)
   C:\pagefile.sys .exe (1540319 bytes)
   %Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (559962 bytes)
   %Documents and Settings%\All Users\Application Data\pejgx.exe (975394 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\pejgx.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: Language Neutral

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: Language Neutral

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	527252	525551	4.96713	5de56c664a0484eadb03d7c41a0cbd71

Dropped from:

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

pejgx.exe_884:

.text

.text

`.data

`.data

.rdata

.rdata

@.bss

@.bss

.idata

.idata

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

%Documents and Settings%\All Users\Application Data\pejgx.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