Gen.Heur.Minggy.1_7bf219efd9

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:464
flxvj.exe:784

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:464 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 (542871 bytes)
%Documents and Settings%\All Users\Application Data\flxvj.exe (914498 bytes)

The process flxvj.exe:784 makes changes in the file system.

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

C:\AUTOEXEC.BAT .exe (1455811 bytes)
C:\MSDOS.SYS .exe (1455811 bytes)
C:\IO.SYS .exe (1455811 bytes)
C:\boot.ini .exe (1455811 bytes)
%Documents and Settings% .exe (1455811 bytes)
C:\RECYCLER .exe (1455811 bytes)
C:\ntldr .exe (1455811 bytes)
C:\original .exe (1455811 bytes)
C:\totalcmd .exe (1455811 bytes)
C:\NTDETECT.COM .exe (1455811 bytes)
C:\System Volume Information .exe (1455811 bytes)
C:\CONFIG.SYS .exe (1455811 bytes)
C:\marker .exe (1455811 bytes)
%Program Files% .exe (1455811 bytes)
C:\%original file name%.exe .exe (1455811 bytes)
%WinDir% .exe (1455811 bytes)
C:\pagefile.sys .exe (1455811 bytes)

The Trojan deletes the following file(s):

C:\Mirax (0 bytes)
C:\Miray (0 bytes)
C:\Mirau (0 bytes)
C:\Miraw (0 bytes)
C:\Miraq (0 bytes)
C:\Mirar (0 bytes)
C:\Miram (0 bytes)
C:\Miran (0 bytes)
C:\Mirao (0 bytes)
C:\Miraj (0 bytes)
C:\Mirak (0 bytes)
C:\Mirad (0 bytes)
C:\Mirae (0 bytes)
C:\Mirag (0 bytes)
C:\Mirab (0 bytes)
C:\Mirac (0 bytes)

Registry activity

The process %original file name%.exe:464 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "A2 C5 D9 DA 88 7E 6D 9E 9B FB 41 BD AA FF 51 12"

[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 flxvj.exe:784 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\flxvj.exe"

Dropped PE files

MD5	File path
a3c095801707b0fb90eb458ee5057c06	c:\%original file name%.exe .exe
10846785675b18c0ec082ad23c0ab8a6	c:\AUTOEXEC.BAT .exe
f63c362f0f281202edf7f80cd0ae6e00	c:\CONFIG.SYS .exe
599dcc04a84f80e885297c4f0a4e483f	c:\Documents and Settings .exe
d882647ae95e92c82bd66478d7043df3	c:\Documents and Settings\All Users\Application Data\Saaaalamm\Mira.h
42d0de3ab9e7f1325603893d94bbfb37	c:\Documents and Settings\All Users\Application Data\flxvj.exe
2b805e8fe69ffd677c2fc5f50afc24af	c:\IO.SYS .exe
c19697728740122dcd5e2f537b3645bf	c:\MSDOS.SYS .exe
5ad732232c7b2cb1f2bd48347b323768	c:\NTDETECT.COM .exe
4752e9b89ff87629d28cf1c97f0ab7ba	c:\Perl .exe
b4847c0d39573dcbdd5e734161a7b8cb	c:\Program Files .exe
3798fa6637e3288b47b371c4638b200f	c:\RECYCLER .exe
f7bf8e648fedf7bf7e240f87251bf179	c:\System Volume Information .exe
c9fb14498cd0f335eaeee568815040fc	c:\WINDOWS .exe
d1f01af09595c408cf654de27b05ba26	c:\boot.ini .exe
72ad3df77d14fb1dbc75c598413f3883	c:\marker .exe
67fb2268e64e68ab88e336ffff50a7df	c:\ntldr .exe
e0258aae7eb548ef18d36eeed6096805	c:\original .exe
e056a810413a5f7a3eda648628628957	c:\pagefile.sys .exe
4ea2c4fbde041129cca0c294fac08224	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:464
   flxvj.exe:784

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\Saaaalamm\Mira.h (542871 bytes)
   %Documents and Settings%\All Users\Application Data\flxvj.exe (914498 bytes)
   C:\AUTOEXEC.BAT .exe (1455811 bytes)
   C:\MSDOS.SYS .exe (1455811 bytes)
   C:\IO.SYS .exe (1455811 bytes)
   C:\boot.ini .exe (1455811 bytes)
   %Documents and Settings% .exe (1455811 bytes)
   C:\RECYCLER .exe (1455811 bytes)
   C:\ntldr .exe (1455811 bytes)
   C:\original .exe (1455811 bytes)
   C:\totalcmd .exe (1455811 bytes)
   C:\NTDETECT.COM .exe (1455811 bytes)
   C:\System Volume Information .exe (1455811 bytes)
   C:\CONFIG.SYS .exe (1455811 bytes)
   C:\marker .exe (1455811 bytes)
   %Program Files% .exe (1455811 bytes)
   C:\%original file name%.exe .exe (1455811 bytes)
   %WinDir% .exe (1455811 bytes)
   C:\pagefile.sys .exe (1455811 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\flxvj.exe"

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

Static Analysis

VersionInfo

No information is available.

No information is available.

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	26552	26624	4.19979	b34c425b32873681c0ed3b6436226b35

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

flxvj.exe_784:

.text

.text

`.data

`.data

.rdata

.rdata

@.bss

@.bss

.idata

.idata

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

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