darkcomet | e95cc70d8ce174cc2b28667e97552a26a91fcb7991d32a81fd23c9460af69af4

Analysis

max time kernel
143s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-10-2024 05:06

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General

Target

5af9f8351c27c32d1c9d2179a34a0620_JaffaCakes118.exe
Size

849KB
MD5

5af9f8351c27c32d1c9d2179a34a0620
SHA1

b5046e105332a7fe6c71bd0f7d676158f30309f9
SHA256

e95cc70d8ce174cc2b28667e97552a26a91fcb7991d32a81fd23c9460af69af4
SHA512

436d353271c2e9a1282c89b84fca67d9f03891d0a4800902cd580fae071ff28aa361f2bdfd31bb207a84edc9d029a6257f8f8954f0092f033122dbd048adec62
SSDEEP

24576:o/QCXJSjgFOc433HWfFLj9kN+z9SprkSf2:F6Sjgp2m939kY90Lu

Score

10^/10

darkcomet guest16 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

46.130.27.71:2000

Mutex

DC_MUTEX-NDU3QZA

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
qghUM0qoxpi0
install
true
offline_keylogger
true
persistence
false
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:

ãã.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"	ãã.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

5af9f8351c27c32d1c9d2179a34a0620_JaffaCakes118.exeãã.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	5af9f8351c27c32d1c9d2179a34a0620_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	ãã.exe

Executes dropped EXE 2 IoCs

Processes:

ãã.exemsdcsc.exe

pid	Process
3424	ãã.exe
440	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ãã.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	ãã.exe

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/files/0x000c000000023b81-4.dat	upx
behavioral2/memory/3424-14-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/440-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/3424-78-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/440-79-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/440-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/440-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/440-87-0x0000000000400000-0x00000000004B7000-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 3 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

Processes:

5af9f8351c27c32d1c9d2179a34a0620_JaffaCakes118.exeãã.exemsdcsc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5af9f8351c27c32d1c9d2179a34a0620_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ãã.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Modifies registry class 1 IoCs

Processes:

ãã.exe

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

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

ãã.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3424	ãã.exe
Token: SeSecurityPrivilege	3424	ãã.exe
Token: SeTakeOwnershipPrivilege	3424	ãã.exe
Token: SeLoadDriverPrivilege	3424	ãã.exe
Token: SeSystemProfilePrivilege	3424	ãã.exe
Token: SeSystemtimePrivilege	3424	ãã.exe
Token: SeProfSingleProcessPrivilege	3424	ãã.exe
Token: SeIncBasePriorityPrivilege	3424	ãã.exe
Token: SeCreatePagefilePrivilege	3424	ãã.exe
Token: SeBackupPrivilege	3424	ãã.exe
Token: SeRestorePrivilege	3424	ãã.exe
Token: SeShutdownPrivilege	3424	ãã.exe
Token: SeDebugPrivilege	3424	ãã.exe
Token: SeSystemEnvironmentPrivilege	3424	ãã.exe
Token: SeChangeNotifyPrivilege	3424	ãã.exe
Token: SeRemoteShutdownPrivilege	3424	ãã.exe
Token: SeUndockPrivilege	3424	ãã.exe
Token: SeManageVolumePrivilege	3424	ãã.exe
Token: SeImpersonatePrivilege	3424	ãã.exe
Token: SeCreateGlobalPrivilege	3424	ãã.exe
Token: 33	3424	ãã.exe
Token: 34	3424	ãã.exe
Token: 35	3424	ãã.exe
Token: 36	3424	ãã.exe
Token: SeIncreaseQuotaPrivilege	440	msdcsc.exe
Token: SeSecurityPrivilege	440	msdcsc.exe
Token: SeTakeOwnershipPrivilege	440	msdcsc.exe
Token: SeLoadDriverPrivilege	440	msdcsc.exe
Token: SeSystemProfilePrivilege	440	msdcsc.exe
Token: SeSystemtimePrivilege	440	msdcsc.exe
Token: SeProfSingleProcessPrivilege	440	msdcsc.exe
Token: SeIncBasePriorityPrivilege	440	msdcsc.exe
Token: SeCreatePagefilePrivilege	440	msdcsc.exe
Token: SeBackupPrivilege	440	msdcsc.exe
Token: SeRestorePrivilege	440	msdcsc.exe
Token: SeShutdownPrivilege	440	msdcsc.exe
Token: SeDebugPrivilege	440	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	440	msdcsc.exe
Token: SeChangeNotifyPrivilege	440	msdcsc.exe
Token: SeRemoteShutdownPrivilege	440	msdcsc.exe
Token: SeUndockPrivilege	440	msdcsc.exe
Token: SeManageVolumePrivilege	440	msdcsc.exe
Token: SeImpersonatePrivilege	440	msdcsc.exe
Token: SeCreateGlobalPrivilege	440	msdcsc.exe
Token: 33	440	msdcsc.exe
Token: 34	440	msdcsc.exe
Token: 35	440	msdcsc.exe
Token: 36	440	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
440	msdcsc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

5af9f8351c27c32d1c9d2179a34a0620_JaffaCakes118.exeãã.exe

description	pid	Process	procid_target
PID 3420 wrote to memory of 3424	3420	5af9f8351c27c32d1c9d2179a34a0620_JaffaCakes118.exe	84
PID 3420 wrote to memory of 3424	3420	5af9f8351c27c32d1c9d2179a34a0620_JaffaCakes118.exe	84
PID 3420 wrote to memory of 3424	3420	5af9f8351c27c32d1c9d2179a34a0620_JaffaCakes118.exe	84
PID 3424 wrote to memory of 440	3424	ãã.exe	85
PID 3424 wrote to memory of 440	3424	ãã.exe	85
PID 3424 wrote to memory of 440	3424	ãã.exe	85

C:\Users\Admin\AppData\Local\Temp\5af9f8351c27c32d1c9d2179a34a0620_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5af9f8351c27c32d1c9d2179a34a0620_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Users\Admin\AppData\Local\Temp\ãã.exe
  "C:\Users\Admin\AppData\Local\Temp\ãã.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3424
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:440

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\AppData\Local\Temp\ãã.exe

Filesize
251KB

MD5
b0ee29daad196846092c646453938d80

SHA1
c72fd553d44745b81a285be1d46214f11610d89d

SHA256
b78166222dfa01f6583443162cc1d4780347943297ccf30eb114ba61119f2765

SHA512
582ba8bf7817ebef597e9520183adb28946388a54e494769016a0ad0108a4391f0f111dcb0f5d8e64fa7a351e698a8fe888eb84da4ac1e8de6fd33136b2bd980

Download Submit
memory/440-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/440-77-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/440-79-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/440-81-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/440-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/440-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/440-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3424-14-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3424-15-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/3424-78-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download