darkcomet | bf95c38752543266aa60388f7adb5298523e02eccce8349876e92ccaf36fa6e9

General

Target

e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Size

756KB
MD5

e2ef2e2e93e39f45d6c32e320e51f878
SHA1

441dabb1e1e3ea6c6106d3c7a9d1f1ab3686b6b1
SHA256

bf95c38752543266aa60388f7adb5298523e02eccce8349876e92ccaf36fa6e9
SHA512

bafe74da5bbdbf8d6ef0045f2a583c0976f2be3ff954dd163c8d533611eb4b6abaa002195dcd3cf722690858437a991bb5c2d671f4bebbaadb642c71cd75317d
SSDEEP

12288:C9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hmbR:uZ1xuVVjfFoynPaVBUR8f+kN10EB4F

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-2BVSTNT

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
A3bMQgDXsfWU
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

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"	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion
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

Processes:

attrib.exeattrib.exe

pid process

3092 attrib.exe
3044 attrib.exe

pid	process
3092	attrib.exe
3044	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

Processes:

e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3376 msdcsc.exe

pid	process
3376	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

msdcsc.exee2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

3376 msdcsc.exe

pid	process
3376	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeSecurityPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeBackupPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeRestorePrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeShutdownPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeDebugPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeUndockPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: 33	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: 34	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: 35	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: 36	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3376	msdcsc.exe
Token: SeSecurityPrivilege	3376	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3376	msdcsc.exe
Token: SeLoadDriverPrivilege	3376	msdcsc.exe
Token: SeSystemProfilePrivilege	3376	msdcsc.exe
Token: SeSystemtimePrivilege	3376	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3376	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3376	msdcsc.exe
Token: SeCreatePagefilePrivilege	3376	msdcsc.exe
Token: SeBackupPrivilege	3376	msdcsc.exe
Token: SeRestorePrivilege	3376	msdcsc.exe
Token: SeShutdownPrivilege	3376	msdcsc.exe
Token: SeDebugPrivilege	3376	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3376	msdcsc.exe
Token: SeChangeNotifyPrivilege	3376	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3376	msdcsc.exe
Token: SeUndockPrivilege	3376	msdcsc.exe
Token: SeManageVolumePrivilege	3376	msdcsc.exe
Token: SeImpersonatePrivilege	3376	msdcsc.exe
Token: SeCreateGlobalPrivilege	3376	msdcsc.exe
Token: 33	3376	msdcsc.exe
Token: 34	3376	msdcsc.exe
Token: 35	3376	msdcsc.exe
Token: 36	3376	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

3376 msdcsc.exe

pid	process
3376	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 3644 wrote to memory of 4892	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	cmd.exe
PID 3644 wrote to memory of 4892	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	cmd.exe
PID 3644 wrote to memory of 4892	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	cmd.exe
PID 3644 wrote to memory of 4288	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	cmd.exe
PID 3644 wrote to memory of 4288	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	cmd.exe
PID 3644 wrote to memory of 4288	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	cmd.exe
PID 4892 wrote to memory of 3092	4892	cmd.exe	attrib.exe
PID 4892 wrote to memory of 3092	4892	cmd.exe	attrib.exe
PID 4892 wrote to memory of 3092	4892	cmd.exe	attrib.exe
PID 4288 wrote to memory of 3044	4288	cmd.exe	attrib.exe
PID 4288 wrote to memory of 3044	4288	cmd.exe	attrib.exe
PID 4288 wrote to memory of 3044	4288	cmd.exe	attrib.exe
PID 3644 wrote to memory of 3376	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	msdcsc.exe
PID 3644 wrote to memory of 3376	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	msdcsc.exe
PID 3644 wrote to memory of 3376	3644	e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe	msdcsc.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe
PID 3376 wrote to memory of 536	3376	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

3092 attrib.exe
3044 attrib.exe

pid	process
3092	attrib.exe
3044	attrib.exe

C:\Users\Admin\AppData\Local\Temp\e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3644

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:4892

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\e2ef2e2e93e39f45d6c32e320e51f878_JaffaCakes118.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:3092

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:4288

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:3044

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Disables RegEdit via registry modification
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3376

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:536

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Hide Artifacts

2

T1564

Hidden Files and Directories

2

T1564.001

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
756KB

MD5
e2ef2e2e93e39f45d6c32e320e51f878

SHA1
441dabb1e1e3ea6c6106d3c7a9d1f1ab3686b6b1

SHA256
bf95c38752543266aa60388f7adb5298523e02eccce8349876e92ccaf36fa6e9

SHA512
bafe74da5bbdbf8d6ef0045f2a583c0976f2be3ff954dd163c8d533611eb4b6abaa002195dcd3cf722690858437a991bb5c2d671f4bebbaadb642c71cd75317d

Download Submit
memory/536-62-0x0000000001220000-0x0000000001221000-memory.dmp

Filesize
4KB

Download
memory/3376-61-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download
memory/3376-64-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3376-77-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3644-0-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/3644-63-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads