Trojan.GenericKD.4587730_c5cd7edfaa

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

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

%original file name%.exe:2956
mTR6hbOp3O.exe:2696

Mutexes

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

File activity

The process %original file name%.exe:2956 makes changes in the file system.

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

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\mTR6hbOp3O.exe (115422 bytes)

The process mTR6hbOp3O.exe:2696 makes changes in the file system.

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

C:\Users\"%CurrentUserName%"\AppData\Local\Temp\cast.config (38 bytes)

Registry activity

The process %original file name%.exe:2956 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\CasterDate]
"date" = "25/03/2017"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"AutoDetect" = "1"

[HKLM\SOFTWARE\Microsoft\Tracing\c5cd7edfaa76e5f481e1dcecbd0df4ee_RASAPI32]
"EnableConsoleTracing" = "0"
"ConsoleTracingMask" = "4294901760"
"MaxFileSize" = "1048576"

[HKLM\SOFTWARE\Microsoft\Tracing\c5cd7edfaa76e5f481e1dcecbd0df4ee_RASMANCS]
"EnableConsoleTracing" = "0"
"FileTracingMask" = "4294901760"
"MaxFileSize" = "1048576"
"FileDirectory" = "%windir%\tracing"

[HKLM\SOFTWARE\Microsoft\Tracing\c5cd7edfaa76e5f481e1dcecbd0df4ee_RASAPI32]
"EnableFileTracing" = "0"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "0"

[HKLM\SOFTWARE\Microsoft\Tracing\c5cd7edfaa76e5f481e1dcecbd0df4ee_RASMANCS]
"EnableFileTracing" = "0"

[HKLM\SOFTWARE\Microsoft\Tracing\c5cd7edfaa76e5f481e1dcecbd0df4ee_RASAPI32]
"FileDirectory" = "%windir%\tracing"

[HKLM\SOFTWARE\Microsoft\Tracing\c5cd7edfaa76e5f481e1dcecbd0df4ee_RASMANCS]
"ConsoleTracingMask" = "4294901760"

[HKLM\SOFTWARE\Microsoft\Tracing\c5cd7edfaa76e5f481e1dcecbd0df4ee_RASAPI32]
"FileTracingMask" = "4294901760"

The Trojan deletes the following value(s) in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass"
"IntranetName"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName"

The process mTR6hbOp3O.exe:2696 makes changes in the system registry.

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

[HKLM\SOFTWARE\Microsoft\Tracing\mTR6hbOp3O_RASMANCS]
"EnableFileTracing" = "0"
"EnableConsoleTracing" = "0"

[HKLM\SOFTWARE\Microsoft\Tracing\mTR6hbOp3O_RASAPI32]
"EnableConsoleTracing" = "0"
"FileTracingMask" = "4294901760"

[HKLM\SOFTWARE\Microsoft\Tracing\mTR6hbOp3O_RASMANCS]
"FileDirectory" = "%windir%\tracing"
"ConsoleTracingMask" = "4294901760"
"MaxFileSize" = "1048576"

[HKLM\SOFTWARE\Microsoft\Tracing\mTR6hbOp3O_RASAPI32]
"MaxFileSize" = "1048576"
"EnableFileTracing" = "0"
"ConsoleTracingMask" = "4294901760"

[HKLM\SOFTWARE\Microsoft\Tracing\mTR6hbOp3O_RASMANCS]
"FileTracingMask" = "4294901760"

[HKLM\SOFTWARE\Microsoft\Tracing\mTR6hbOp3O_RASAPI32]
"FileDirectory" = "%windir%\tracing"

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]
"KNU8YI62O5" = "C:\Users\"%CurrentUserName%"\AppData\Local\Temp\mTR6hbOp3O.exe"

Dropped PE files

MD5	File path
0ba28eb22e8e77f433aa9dcf48092580	c:\Users\"%CurrentUserName%"\AppData\Local\Temp\mTR6hbOp3O.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):No processes have been created.
2. Delete the original Trojan file.
   
3. Delete or disinfect the following files created/modified by the Trojan:

   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\mTR6hbOp3O.exe (115422 bytes)
   C:\Users\"%CurrentUserName%"\AppData\Local\Temp\cast.config (38 bytes)

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

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "KNU8YI62O5" = "C:\Users\"%CurrentUserName%"\AppData\Local\Temp\mTR6hbOp3O.exe"

5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
   
6. Reboot the computer.
   

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

Static Analysis

VersionInfo

Company Name: F9A
Product Name: F9AM69ES
Product Version: 0.1.1.3
Legal Copyright: Copyright (c) 9955
Legal Trademarks:
Original Filename: Palace22.exe
Internal Name: Palace22.exe
File Version: 0.1.1.3
File Description: F
Comments: F9AM69ESO
Language: English (United States)

Company Name: F9AProduct Name: F9AM69ESProduct Version: 0.1.1.3Legal Copyright: Copyright (c) 9955Legal Trademarks: Original Filename: Palace22.exeInternal Name: Palace22.exeFile Version: 0.1.1.3File Description: FComments: F9AM69ESOLanguage: English (United States)

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	8192	2496840	2497024	4.16748	2afda67ed7c302738ae18fb6a1e925a0
.rsrc	2506752	9848	10240	3.611	b898600d2e96bb1e93de9bde5ad4e389
.reloc	2523136	12	512	0.070639	358cec7292662a02b50f706cdd027ad0

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

URL	IP
hxxp://asiasoftwaretools.com/get/3/wizzcaster_v2.exe	94.23.252.37
hxxp://wizzcaster.com/api/v5/config	94.23.44.92
hxxp://wizzcaster.com/api/v5/link	94.23.44.92
dns.msftncsi.com	131.107.255.255

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

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

Strings from Dumps