darkcomet | b700cb56fef876ef30bd594fc703413dd13d2895dd02f9c0734b0125fe00d2fd

Analysis

max time kernel
141s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 00:57

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General

Target

df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Size

251KB
MD5

df417173e0f0ce01d58b10b56d01903b
SHA1

c70311496dc0434dd094f9edbbec46ca33e559a8
SHA256

b700cb56fef876ef30bd594fc703413dd13d2895dd02f9c0734b0125fe00d2fd
SHA512

982595b2a522af85088307e39b7a7bf3a5815a2b5d6ef5640879d2eb2029fcb0fa1dbed382a9f5d064db5f8683e98f1912d49357f8d38cbfcb01c059b12c325d
SSDEEP

6144:NcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37BDAG:NcW7KEZlPzCy37BU

Score

10^/10

darkcomet guest16 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

10.0.0.12:1605

Mutex

DC_MUTEX-ZD1HDL9

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
8Mpzr8899tvL
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
Darkcomet family
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"	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3152	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4856-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/files/0x0008000000023c01-6.dat	upx
behavioral2/memory/4856-63-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3152-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3152-65-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3152-67-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3152-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3152-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3152-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3152-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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 2 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	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.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\	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeSecurityPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeBackupPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeRestorePrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeShutdownPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeDebugPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeUndockPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: 33	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: 34	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: 35	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: 36	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3152	msdcsc.exe
Token: SeSecurityPrivilege	3152	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3152	msdcsc.exe
Token: SeLoadDriverPrivilege	3152	msdcsc.exe
Token: SeSystemProfilePrivilege	3152	msdcsc.exe
Token: SeSystemtimePrivilege	3152	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3152	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3152	msdcsc.exe
Token: SeCreatePagefilePrivilege	3152	msdcsc.exe
Token: SeBackupPrivilege	3152	msdcsc.exe
Token: SeRestorePrivilege	3152	msdcsc.exe
Token: SeShutdownPrivilege	3152	msdcsc.exe
Token: SeDebugPrivilege	3152	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3152	msdcsc.exe
Token: SeChangeNotifyPrivilege	3152	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3152	msdcsc.exe
Token: SeUndockPrivilege	3152	msdcsc.exe
Token: SeManageVolumePrivilege	3152	msdcsc.exe
Token: SeImpersonatePrivilege	3152	msdcsc.exe
Token: SeCreateGlobalPrivilege	3152	msdcsc.exe
Token: 33	3152	msdcsc.exe
Token: 34	3152	msdcsc.exe
Token: 35	3152	msdcsc.exe
Token: 36	3152	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3152	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 3152	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe	82
PID 4856 wrote to memory of 3152	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe	82
PID 4856 wrote to memory of 3152	4856	df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe	82

C:\Users\Admin\AppData\Local\Temp\df417173e0f0ce01d58b10b56d01903b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\df417173e0f0ce01d58b10b56d01903b_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:4856
- 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 use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3152

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

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
251KB

MD5
df417173e0f0ce01d58b10b56d01903b

SHA1
c70311496dc0434dd094f9edbbec46ca33e559a8

SHA256
b700cb56fef876ef30bd594fc703413dd13d2895dd02f9c0734b0125fe00d2fd

SHA512
982595b2a522af85088307e39b7a7bf3a5815a2b5d6ef5640879d2eb2029fcb0fa1dbed382a9f5d064db5f8683e98f1912d49357f8d38cbfcb01c059b12c325d

Download Submit
memory/3152-62-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/3152-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3152-65-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3152-67-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3152-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3152-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3152-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3152-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4856-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4856-1-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

Filesize
4KB

Download
memory/4856-63-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads