darkcomet | b77e18b1acc022824f5a3056e141918e57946d9cda62ec4c8bb2434c1d5dd6cb

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16/08/2024, 00:37

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General

Target
9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Size 937KB
Sample240816-ayjtmavdlf
SHA256 b77e18b1acc022824f5a3056e141918e57946d9cda62ec4c8bb2434c1d5dd6cb
MD5 9c446de6d14b63ac198ce7b26cbe34a0
SHA1 cd5d67d7aed102e26909be9780bd4cd7a80d57a0
SHA512 84ad1d8b8417ce361b6d78a300a54026491a894bb480cf162a003afea53f055cebd54bf8fb1e43d0b1b3f1e267302e0dd85b4a9a496446c6c40f907a854a51f1
SSDEEP 24576:vnAw2WWeFcfbP9VPSPMTSPL/rWvzq4JJfpD9bNCfL:PELbVMTrOq49OL
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet latentbot main discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

MAIN

aditi1rajan.zapto.org:100

Mutex

DC_MUTEX-94XYLM2

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
1pNxuWVLzDfY
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

Extracted

Family

latentbot

aditi1rajan.zapto.org

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
LatentBot
Modular trojan written in Delphi which has been in-the-wild since 2013.
trojan latentbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
3624	attrib.exe
3244	attrib.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2924	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
3668	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3668	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeSecurityPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeBackupPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeRestorePrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeShutdownPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeDebugPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeUndockPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: 33	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: 34	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: 35	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: 36	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3668	msdcsc.exe
Token: SeSecurityPrivilege	3668	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3668	msdcsc.exe
Token: SeLoadDriverPrivilege	3668	msdcsc.exe
Token: SeSystemProfilePrivilege	3668	msdcsc.exe
Token: SeSystemtimePrivilege	3668	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3668	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3668	msdcsc.exe
Token: SeCreatePagefilePrivilege	3668	msdcsc.exe
Token: SeBackupPrivilege	3668	msdcsc.exe
Token: SeRestorePrivilege	3668	msdcsc.exe
Token: SeShutdownPrivilege	3668	msdcsc.exe
Token: SeDebugPrivilege	3668	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3668	msdcsc.exe
Token: SeChangeNotifyPrivilege	3668	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3668	msdcsc.exe
Token: SeUndockPrivilege	3668	msdcsc.exe
Token: SeManageVolumePrivilege	3668	msdcsc.exe
Token: SeImpersonatePrivilege	3668	msdcsc.exe
Token: SeCreateGlobalPrivilege	3668	msdcsc.exe
Token: 33	3668	msdcsc.exe
Token: 34	3668	msdcsc.exe
Token: 35	3668	msdcsc.exe
Token: 36	3668	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3668	msdcsc.exe

Suspicious use of WriteProcessMemory 54 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 468	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	86
PID 2584 wrote to memory of 468	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	86
PID 2584 wrote to memory of 468	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	86
PID 2584 wrote to memory of 964	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	87
PID 2584 wrote to memory of 964	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	87
PID 2584 wrote to memory of 964	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	87
PID 468 wrote to memory of 3624	468	cmd.exe	90
PID 468 wrote to memory of 3624	468	cmd.exe	90
PID 468 wrote to memory of 3624	468	cmd.exe	90
PID 964 wrote to memory of 3244	964	cmd.exe	91
PID 964 wrote to memory of 3244	964	cmd.exe	91
PID 964 wrote to memory of 3244	964	cmd.exe	91
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 2924	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	93
PID 2584 wrote to memory of 3668	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	94
PID 2584 wrote to memory of 3668	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	94
PID 2584 wrote to memory of 3668	2584	9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe	94
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95
PID 3668 wrote to memory of 2948	3668	msdcsc.exe	95

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3624	attrib.exe
3244	attrib.exe

C:\Users\Admin\AppData\Local\Temp\9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2584
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:468
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\9c446de6d14b63ac198ce7b26cbe34a0_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:964
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3244
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2924
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3668
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

msdcsc.exe

Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Size 937KB
SHA256 b77e18b1acc022824f5a3056e141918e57946d9cda62ec4c8bb2434c1d5dd6cb
MD5 9c446de6d14b63ac198ce7b26cbe34a0
SHA1 cd5d67d7aed102e26909be9780bd4cd7a80d57a0
SHA512 84ad1d8b8417ce361b6d78a300a54026491a894bb480cf162a003afea53f055cebd54bf8fb1e43d0b1b3f1e267302e0dd85b4a9a496446c6c40f907a854a51f1
SSDEEP 24576:vnAw2WWeFcfbP9VPSPMTSPL/rWvzq4JJfpD9bNCfL:PELbVMTrOq49OL
MD5 SHA1 SHA512 SSDEEP

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memory/2584-0-0x00000000022B0000-0x00000000022B1000-memory.dmp

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memory/2584-64-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/2924-5-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

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memory/2948-66-0x0000000000C10000-0x0000000000C11000-memory.dmp

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memory/3668-70-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-74-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-69-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-67-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-71-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-72-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-73-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-68-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-75-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-76-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-77-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-78-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-79-0x0000000000400000-0x00000000004FA000-memory.dmp

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memory/3668-80-0x0000000000400000-0x00000000004FA000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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