darkcomet | df4fe825dacadddc542872f1e145de772a06f086135b23ddfa86f414927da502

Analysis

max time kernel
150s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-08-2024 22:38

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General

Target

acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Size

252KB
MD5

acdddf1d3d4c49c355498560479e075b
SHA1

e4d30c7b4727f14aef255a4ddf8d4e899568714e
SHA256

df4fe825dacadddc542872f1e145de772a06f086135b23ddfa86f414927da502
SHA512

790ee0c074ee0903ee323ca9b73bd964e3388f49fd48de124b544b73a0fa2d0e5d529d6d7c68e677f65c761b846481e279c6d008565f9a22d120df05513d05e8
SSDEEP

6144:8MI/jlS4kCwHL76nz9Q3uR5LTYYBIsHf:8MQlS9Cwr79uLLTvBIYf

Score

10^/10

darkcomet vv5%^&*discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

vv5%^&*

192.222.333.444:1604

Mutex

DC_MUTEX-RK8CWLD

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
SclM1t16uiau
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

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"	acdddf1d3d4c49c355498560479e075b_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
4784	attrib.exe
4396	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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4636	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
3744	msdcsc.exe

UPX packed file 18 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2428-0-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/files/0x0008000000023455-7.dat	upx
behavioral2/memory/2428-64-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-67-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-68-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-69-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-70-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-71-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-72-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-73-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-74-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-75-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-76-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-77-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-78-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-79-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-80-0x0000000000400000-0x00000000004B9000-memory.dmp	upx
behavioral2/memory/3744-81-0x0000000000400000-0x00000000004B9000-memory.dmp	upx

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-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
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	msdcsc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3744	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeSecurityPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeBackupPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeRestorePrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeShutdownPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeDebugPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeUndockPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: 33	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: 34	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: 35	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: 36	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3744	msdcsc.exe
Token: SeSecurityPrivilege	3744	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3744	msdcsc.exe
Token: SeLoadDriverPrivilege	3744	msdcsc.exe
Token: SeSystemProfilePrivilege	3744	msdcsc.exe
Token: SeSystemtimePrivilege	3744	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3744	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3744	msdcsc.exe
Token: SeCreatePagefilePrivilege	3744	msdcsc.exe
Token: SeBackupPrivilege	3744	msdcsc.exe
Token: SeRestorePrivilege	3744	msdcsc.exe
Token: SeShutdownPrivilege	3744	msdcsc.exe
Token: SeDebugPrivilege	3744	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3744	msdcsc.exe
Token: SeChangeNotifyPrivilege	3744	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3744	msdcsc.exe
Token: SeUndockPrivilege	3744	msdcsc.exe
Token: SeManageVolumePrivilege	3744	msdcsc.exe
Token: SeImpersonatePrivilege	3744	msdcsc.exe
Token: SeCreateGlobalPrivilege	3744	msdcsc.exe
Token: 33	3744	msdcsc.exe
Token: 34	3744	msdcsc.exe
Token: 35	3744	msdcsc.exe
Token: 36	3744	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3744	msdcsc.exe

Suspicious use of WriteProcessMemory 54 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 2476	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	83
PID 2428 wrote to memory of 2476	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	83
PID 2428 wrote to memory of 2476	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	83
PID 2428 wrote to memory of 4612	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	84
PID 2428 wrote to memory of 4612	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	84
PID 2428 wrote to memory of 4612	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	84
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2428 wrote to memory of 4636	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	86
PID 2476 wrote to memory of 4784	2476	cmd.exe	88
PID 2476 wrote to memory of 4784	2476	cmd.exe	88
PID 2476 wrote to memory of 4784	2476	cmd.exe	88
PID 4612 wrote to memory of 4396	4612	cmd.exe	89
PID 4612 wrote to memory of 4396	4612	cmd.exe	89
PID 4612 wrote to memory of 4396	4612	cmd.exe	89
PID 2428 wrote to memory of 3744	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	90
PID 2428 wrote to memory of 3744	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	90
PID 2428 wrote to memory of 3744	2428	acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe	90
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92
PID 3744 wrote to memory of 4712	3744	msdcsc.exe	92

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
4784	attrib.exe
4396	attrib.exe

C:\Users\Admin\AppData\Local\Temp\acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\acdddf1d3d4c49c355498560479e075b_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:2428
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2476
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\acdddf1d3d4c49c355498560479e075b_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4784
- 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:4612
- - 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:4396
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4636
- 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:3744
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4712

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

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
252KB

MD5
acdddf1d3d4c49c355498560479e075b

SHA1
e4d30c7b4727f14aef255a4ddf8d4e899568714e

SHA256
df4fe825dacadddc542872f1e145de772a06f086135b23ddfa86f414927da502

SHA512
790ee0c074ee0903ee323ca9b73bd964e3388f49fd48de124b544b73a0fa2d0e5d529d6d7c68e677f65c761b846481e279c6d008565f9a22d120df05513d05e8

Download Submit
memory/2428-64-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/2428-1-0x0000000000760000-0x0000000000761000-memory.dmp

Filesize
4KB

Download
memory/2428-0-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-76-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-74-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-67-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-68-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-69-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-70-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-71-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-72-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-73-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-81-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-75-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-80-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-77-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-78-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/3744-79-0x0000000000400000-0x00000000004B9000-memory.dmp

Filesize
740KB

Download
memory/4636-5-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/4712-65-0x0000000000C20000-0x0000000000C21000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads