darkcomet | 0f18011ef2afa539dd7ffbac8465e04d8b851ba3cfb5c131bb87c0e391110363

General

Target

044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Size

252KB
MD5

044626347c403a9fa5370006cd52f2ec
SHA1

57f68fe970b1367fb38d3bc4e4434ef76c148a31
SHA256

0f18011ef2afa539dd7ffbac8465e04d8b851ba3cfb5c131bb87c0e391110363
SHA512

9b088e9b3bde254c7603b9a3b74f46f1c2162dfd31166ad18b84d3eae3320d50411ce5cb4638628028d4a4a9087dbe383c9c9f0224769f8cb5e9271fcd5a832f
SSDEEP

6144:dcNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PHQJU7R:dcWkbgTYWnYnt/IDYhPAU7

Score

10^/10

darkcomet guest16 evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

192.168.1.100:1604

192.168.1.100:81

46.150.97.101:81

46.150.97.101:1604

Mutex

DC_MUTEX-Q84BTU6

Attributes

InstallPath
��
gencode
ftKVJQ3KZAgd
install
true
offline_keylogger
true
persistence
false
reg_key
svhost

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:

044626347c403a9fa5370006cd52f2ec_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\\AppData\\Roaming\\×èòû"	044626347c403a9fa5370006cd52f2ec_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

Processes:

attrib.exeattrib.exe

pid	Process
1220	attrib.exe
3244	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:

044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/916-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/files/0x000800000002343b-6.dat	upx
behavioral2/memory/916-28-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svhost = "C:\\Users\\Admin\\AppData\\Roaming\\×èòû"	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeSecurityPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeSystemtimePrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeBackupPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeRestorePrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeShutdownPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeDebugPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeUndockPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeManageVolumePrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeImpersonatePrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: 33	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: 34	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: 35	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
Token: 36	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

044626347c403a9fa5370006cd52f2ec_JaffaCakes118.execmd.execmd.exe

description	pid	Process	procid_target
PID 916 wrote to memory of 872	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe	89
PID 916 wrote to memory of 872	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe	89
PID 916 wrote to memory of 872	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe	89
PID 916 wrote to memory of 1636	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe	91
PID 916 wrote to memory of 1636	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe	91
PID 916 wrote to memory of 1636	916	044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe	91
PID 1636 wrote to memory of 1220	1636	cmd.exe	93
PID 1636 wrote to memory of 1220	1636	cmd.exe	93
PID 1636 wrote to memory of 1220	1636	cmd.exe	93
PID 872 wrote to memory of 3244	872	cmd.exe	94
PID 872 wrote to memory of 3244	872	cmd.exe	94
PID 872 wrote to memory of 3244	872	cmd.exe	94

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
1220	attrib.exe
3244	attrib.exe

C:\Users\Admin\AppData\Local\Temp\044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:872
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\044626347c403a9fa5370006cd52f2ec_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:3244
- 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:1636
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:1220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Hide Artifacts

2

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\×èòû

Filesize
252KB

MD5
044626347c403a9fa5370006cd52f2ec

SHA1
57f68fe970b1367fb38d3bc4e4434ef76c148a31

SHA256
0f18011ef2afa539dd7ffbac8465e04d8b851ba3cfb5c131bb87c0e391110363

SHA512
9b088e9b3bde254c7603b9a3b74f46f1c2162dfd31166ad18b84d3eae3320d50411ce5cb4638628028d4a4a9087dbe383c9c9f0224769f8cb5e9271fcd5a832f

Download Submit
memory/916-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/916-1-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download
memory/916-28-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads