Gen.Heur.Minggy.1_006294fbf9

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

cnhbde.exe:1888
%original file name%.exe:580

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 cnhbde.exe:1888 makes changes in the file system.

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

C:\AUTOEXEC.BAT .exe (1425666 bytes)
C:\MSDOS.SYS .exe (1425666 bytes)
C:\IO.SYS .exe (1425666 bytes)
C:\%original file name%.exe .exe (1425666 bytes)
C:\boot.ini .exe (1425666 bytes)
%Documents and Settings% .exe (1425666 bytes)
C:\RECYCLER .exe (1425666 bytes)
C:\ntldr .exe (1425666 bytes)
C:\original .exe (1425666 bytes)
C:\totalcmd .exe (1425666 bytes)
C:\NTDETECT.COM .exe (1425666 bytes)
C:\System Volume Information .exe (1425666 bytes)
C:\CONFIG.SYS .exe (1425666 bytes)
C:\marker .exe (1425666 bytes)
%Program Files% .exe (1425666 bytes)
%WinDir% .exe (1425666 bytes)
C:\pagefile.sys .exe (1425666 bytes)

The Trojan deletes the following file(s):

C:\Mirax (0 bytes)
C:\Mirat (0 bytes)
C:\Mirau (0 bytes)
C:\Miraw (0 bytes)
C:\Miraq (0 bytes)
C:\Miral (0 bytes)
C:\Miram (0 bytes)
C:\Mirao (0 bytes)
C:\Miraj (0 bytes)
C:\Mirad (0 bytes)
C:\Miraa (0 bytes)
C:\Mirab (0 bytes)
C:\Mirac (0 bytes)

The process %original file name%.exe:580 makes changes in the file system.

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

%Documents and Settings%\All Users\Application Data\cnhbde.exe (914498 bytes)
%Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (512410 bytes)

Registry activity

The process cnhbde.exe:1888 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\cnhbde.exe"

The process %original file name%.exe:580 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "AD 00 0B 1A 91 93 68 E1 F5 5E 3A 99 0E A0 42 7D"

[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
58c99566aa72ad082a5770f7fc4e31f4	c:\%original file name%.exe .exe
d51aeec51ed775f9957fe6a8770e8599	c:\AUTOEXEC.BAT .exe
cca61b90dfcf8be22875b8f12bd7c8f9	c:\CONFIG.SYS .exe
fe09b072ac02ef9d69cd08768fd435b7	c:\Documents and Settings .exe
3835a08a15685057f0c784aa5e556038	c:\Documents and Settings\All Users\Application Data\Saaaalamm\Mira.h
fa94ebf4fc81825d06fc6571dd7600a2	c:\Documents and Settings\All Users\Application Data\cnhbde.exe
bd51e94eeff9b8f8a92e0e5c9107df5e	c:\IO.SYS .exe
1480a40e96b4cd53bfdcd3c37dba4b3e	c:\MSDOS.SYS .exe
6747ef84ce456708ea453c3e1a8e11c4	c:\NTDETECT.COM .exe
1147ba390c682e0b1ebd05fec1c3ddd4	c:\Perl .exe
05e8cab4702ecabbb6c8e62b1282dbe3	c:\Program Files .exe
ce863e5eb8835e0bb4769fef31c2de9f	c:\RECYCLER .exe
b0a6d7c66df82389986861167bf790b6	c:\System Volume Information .exe
bbb27d3186a333a5112cb7ede4427808	c:\WINDOWS .exe
212eadeefeeb1a4ead1a4bd88324b6b2	c:\boot.ini .exe
e0bf0c1a36356cde51482eeb7e711b8a	c:\marker .exe
4158633c035c3d35aabdae2b80a78c44	c:\ntldr .exe
00fc7d1161117c105790bcb3716bfa2e	c:\original .exe
f060ea68eeb8b2c05711d2148b6400e1	c:\pagefile.sys .exe
3a9080019676e85971015bf5b3ff98fc	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):

   cnhbde.exe:1888
   %original file name%.exe:580

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

   C:\AUTOEXEC.BAT .exe (1425666 bytes)
   C:\MSDOS.SYS .exe (1425666 bytes)
   C:\IO.SYS .exe (1425666 bytes)
   C:\%original file name%.exe .exe (1425666 bytes)
   C:\boot.ini .exe (1425666 bytes)
   %Documents and Settings% .exe (1425666 bytes)
   C:\RECYCLER .exe (1425666 bytes)
   C:\ntldr .exe (1425666 bytes)
   C:\original .exe (1425666 bytes)
   C:\totalcmd .exe (1425666 bytes)
   C:\NTDETECT.COM .exe (1425666 bytes)
   C:\System Volume Information .exe (1425666 bytes)
   C:\CONFIG.SYS .exe (1425666 bytes)
   C:\marker .exe (1425666 bytes)
   %Program Files% .exe (1425666 bytes)
   %WinDir% .exe (1425666 bytes)
   C:\pagefile.sys .exe (1425666 bytes)
   %Documents and Settings%\All Users\Application Data\cnhbde.exe (914498 bytes)
   %Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (512410 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\cnhbde.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	4.83121	64a46b8c6de6fa6acc95992ff1740526

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

cnhbde.exe_1888:

.text

.text

`.data

`.data

.rdata

.rdata

@.bss

@.bss

.idata

.idata

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

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