darkcomet | 54e2ab2dbcb18c522c92f64a482234523d6e653d765376fba092deb16095c112

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2024 13:32

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General

Target

94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe
Size

766KB
MD5

94fc05361686cc76105724d8cc663f21
SHA1

b9e21c902130a80a15184cd7cc1d676179308fcc
SHA256

54e2ab2dbcb18c522c92f64a482234523d6e653d765376fba092deb16095c112
SHA512

b27dbbb363208be0cec6b3d7c5c1997141640aedbc48033fffd22e4d5cd6ebc5e0fc196340190444371c58bc36c9e8ea2311ae7ab5b5482accbb2519306dff4a
SSDEEP

12288:MWM00blAckjJmUgFuSYSTKBA0Plr1dSCCHTp1/nW2BqsvD2MjQ:1M00bOcYJmX85SMA0DCN1ZDY

Score

10^/10

darkcomet fun defense_evasion discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

FUN

spr35check.myftp.org:1604

Mutex

DC_MUTEX-Q1V5UCQ

Attributes

InstallPath
Microsoft\Windows\Firewall\firewallws.exe
gencode
7atKmF9TabN3
install
true
offline_keylogger
false
persistence
false
reg_key
Windows Firewall

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

Processes:

CheatPack.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\Windows\\Firewall\\firewallws.exe"	CheatPack.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:

94fc05361686cc76105724d8cc663f21_JaffaCakes118.exeCheatPack.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	CheatPack.exe

Executes dropped EXE 2 IoCs

Processes:

CheatPack.exefirewallws.exe

pid	Process
3480	CheatPack.exe
380	firewallws.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

CheatPack.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Firewall = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\Windows\\Firewall\\firewallws.exe"	CheatPack.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

UPX packed file 18 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/files/0x000a000000023b8b-4.dat	upx
behavioral2/memory/3480-12-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/3480-27-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-28-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-29-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-30-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-31-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-32-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-33-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-34-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-35-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-36-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-37-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-38-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-39-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-40-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-41-0x0000000000400000-0x000000000056C000-memory.dmp	upx
behavioral2/memory/380-42-0x0000000000400000-0x000000000056C000-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 4 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:

94fc05361686cc76105724d8cc663f21_JaffaCakes118.exeCheatPack.execmd.exefirewallws.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CheatPack.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	firewallws.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

CheatPack.exefirewallws.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3480	CheatPack.exe
Token: SeSecurityPrivilege	3480	CheatPack.exe
Token: SeTakeOwnershipPrivilege	3480	CheatPack.exe
Token: SeLoadDriverPrivilege	3480	CheatPack.exe
Token: SeSystemProfilePrivilege	3480	CheatPack.exe
Token: SeSystemtimePrivilege	3480	CheatPack.exe
Token: SeProfSingleProcessPrivilege	3480	CheatPack.exe
Token: SeIncBasePriorityPrivilege	3480	CheatPack.exe
Token: SeCreatePagefilePrivilege	3480	CheatPack.exe
Token: SeBackupPrivilege	3480	CheatPack.exe
Token: SeRestorePrivilege	3480	CheatPack.exe
Token: SeShutdownPrivilege	3480	CheatPack.exe
Token: SeDebugPrivilege	3480	CheatPack.exe
Token: SeSystemEnvironmentPrivilege	3480	CheatPack.exe
Token: SeChangeNotifyPrivilege	3480	CheatPack.exe
Token: SeRemoteShutdownPrivilege	3480	CheatPack.exe
Token: SeUndockPrivilege	3480	CheatPack.exe
Token: SeManageVolumePrivilege	3480	CheatPack.exe
Token: SeImpersonatePrivilege	3480	CheatPack.exe
Token: SeCreateGlobalPrivilege	3480	CheatPack.exe
Token: 33	3480	CheatPack.exe
Token: 34	3480	CheatPack.exe
Token: 35	3480	CheatPack.exe
Token: 36	3480	CheatPack.exe
Token: SeIncreaseQuotaPrivilege	380	firewallws.exe
Token: SeSecurityPrivilege	380	firewallws.exe
Token: SeTakeOwnershipPrivilege	380	firewallws.exe
Token: SeLoadDriverPrivilege	380	firewallws.exe
Token: SeSystemProfilePrivilege	380	firewallws.exe
Token: SeSystemtimePrivilege	380	firewallws.exe
Token: SeProfSingleProcessPrivilege	380	firewallws.exe
Token: SeIncBasePriorityPrivilege	380	firewallws.exe
Token: SeCreatePagefilePrivilege	380	firewallws.exe
Token: SeBackupPrivilege	380	firewallws.exe
Token: SeRestorePrivilege	380	firewallws.exe
Token: SeShutdownPrivilege	380	firewallws.exe
Token: SeDebugPrivilege	380	firewallws.exe
Token: SeSystemEnvironmentPrivilege	380	firewallws.exe
Token: SeChangeNotifyPrivilege	380	firewallws.exe
Token: SeRemoteShutdownPrivilege	380	firewallws.exe
Token: SeUndockPrivilege	380	firewallws.exe
Token: SeManageVolumePrivilege	380	firewallws.exe
Token: SeImpersonatePrivilege	380	firewallws.exe
Token: SeCreateGlobalPrivilege	380	firewallws.exe
Token: 33	380	firewallws.exe
Token: 34	380	firewallws.exe
Token: 35	380	firewallws.exe
Token: 36	380	firewallws.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

94fc05361686cc76105724d8cc663f21_JaffaCakes118.exeCheatPack.exe

description	pid	Process	procid_target
PID 3600 wrote to memory of 3480	3600	94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe	87
PID 3600 wrote to memory of 3480	3600	94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe	87
PID 3600 wrote to memory of 3480	3600	94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe	87
PID 3600 wrote to memory of 2708	3600	94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe	88
PID 3600 wrote to memory of 2708	3600	94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe	88
PID 3600 wrote to memory of 2708	3600	94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe	88
PID 3480 wrote to memory of 380	3480	CheatPack.exe	90
PID 3480 wrote to memory of 380	3480	CheatPack.exe	90
PID 3480 wrote to memory of 380	3480	CheatPack.exe	90

C:\Users\Admin\AppData\Local\Temp\94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3600
- C:\Users\Admin\AppData\Local\Temp\CheatPack.exe
  "C:\Users\Admin\AppData\Local\Temp\CheatPack.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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3480
- - C:\Users\Admin\AppData\Local\Temp\Microsoft\Windows\Firewall\firewallws.exe
    "C:\Users\Admin\AppData\Local\Temp\Microsoft\Windows\Firewall\firewallws.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\94fc05361686cc76105724d8cc663f21_JaffaCakes118.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2708

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

Indicator Removal

T1070

File Deletion

T1070.004

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\CheatPack.exe

Filesize
614KB

MD5
9dd33992badc2b679b1afbefc8861462

SHA1
cba96323bad050be9ff144f836eaabda9d7d9356

SHA256
162c082359424b4ed326fb91c4c2cbcb485f291fe6c3ed0a9885a7904664319d

SHA512
9ecb81b561b3a5c9963f94e1164ef062af0e889074a4d770035359e21320612920f3e3ec10fcc3e4a9bd39e4d6e3779a982046b8c98a304d78d2d16beaf29555

Download Submit
memory/380-32-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-38-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-34-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-35-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-29-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-30-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-31-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-33-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-42-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-41-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-28-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-36-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-37-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-40-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/380-39-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/3480-13-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download
memory/3480-27-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/3480-12-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download