darkcomet | 59d693e45fd11470bd208bd51acdc3d97ae78bf0edd5c1fd4e63fc534595f54c

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
19/07/2024, 01:39

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General

Target
59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe
Size 386KB
Sample240719-b2y86axajm
SHA256 59d693e45fd11470bd208bd51acdc3d97ae78bf0edd5c1fd4e63fc534595f54c
MD5 59f1e5ec39e38ceb4accab8daf9fc82a
SHA1 28e060d6c0e0cf557662cf94c2ec841d8ccf4682
SHA512 2e33a24fea48f47880981c580dc62cd7803e9776be607f4c704e428e4e4a3c7db9b8a606b69356f2ccf90da52bfc552c52aedd976d1438183ade2a19c9727d3f
SSDEEP 12288:7JtIlWfCPiwnE3RucFxhYiyymEK8UclOu0k7ARl:PIGCuucF/kS/il
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet evasion persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Disables Task Manager via registry modification
evasion

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
2404	attrib.exe
1728	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-1-5-21-1403246978-718555486-3105247137-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3424	svchost.exe

UPX packed file 25 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3424-10-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-14-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-12-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-7-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-17-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-16-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-19-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-22-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-21-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-20-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-23-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-24-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-25-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-26-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-27-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-28-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-29-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-30-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-31-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-32-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-33-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-34-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-35-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-36-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/3424-37-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1403246978-718555486-3105247137-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1 = "C:\\Users\\Admin\\AppData\\Roaming\\59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe"	59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3648 set thread context of 3424	3648	59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe	83

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

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3424	svchost.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

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

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3424	svchost.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3648 wrote to memory of 3424	3648	59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe	83
PID 3648 wrote to memory of 3424	3648	59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe	83
PID 3648 wrote to memory of 3424	3648	59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe	83
PID 3648 wrote to memory of 3424	3648	59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe	83
PID 3648 wrote to memory of 3424	3648	59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe	83
PID 3648 wrote to memory of 3424	3648	59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe	83
PID 3648 wrote to memory of 3424	3648	59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe	83
PID 3648 wrote to memory of 3424	3648	59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe	83
PID 3424 wrote to memory of 1008	3424	svchost.exe	85
PID 3424 wrote to memory of 1008	3424	svchost.exe	85
PID 3424 wrote to memory of 1008	3424	svchost.exe	85
PID 3424 wrote to memory of 736	3424	svchost.exe	87
PID 3424 wrote to memory of 736	3424	svchost.exe	87
PID 3424 wrote to memory of 736	3424	svchost.exe	87
PID 3424 wrote to memory of 4084	3424	svchost.exe	88
PID 3424 wrote to memory of 4084	3424	svchost.exe	88
PID 3424 wrote to memory of 4084	3424	svchost.exe	88
PID 3424 wrote to memory of 1568	3424	svchost.exe	90
PID 3424 wrote to memory of 1568	3424	svchost.exe	90
PID 1008 wrote to memory of 2404	1008	cmd.exe	92
PID 1008 wrote to memory of 2404	1008	cmd.exe	92
PID 1008 wrote to memory of 2404	1008	cmd.exe	92
PID 736 wrote to memory of 1728	736	cmd.exe	93
PID 736 wrote to memory of 1728	736	cmd.exe	93
PID 736 wrote to memory of 1728	736	cmd.exe	93

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2404	attrib.exe
1728	attrib.exe

C:\Users\Admin\AppData\Local\Temp\59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\59f1e5ec39e38ceb4accab8daf9fc82a_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3648
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3424
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1008
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
      4⤵
      Sets file to hidden
      Views/modifies file attributes
      PID:2404
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:736
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      Views/modifies file attributes
      PID:1728
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:4084
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:1568

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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svchost.exe

Path C:\Users\Admin\AppData\Local\Temp\svchost.exe
Size 1.1MB
SHA256 b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0
MD5 d881de17aa8f2e2c08cbb7b265f928f9
SHA1 08936aebc87decf0af6e8eada191062b5e65ac2a
SHA512 5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34
SSDEEP 24576:jp2silPBMIXGWClfuRcUGIJYK15Qs/QZM:jp2sMO7VzUTJH15QFZM
MD5 SHA1 SHA512 SSDEEP

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memory/3424-21-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-28-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-37-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-10-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-14-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-12-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-7-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-17-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-18-0x00000000025C0000-0x00000000025C1000-memory.dmp

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memory/3424-16-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-36-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-19-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-22-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-35-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-34-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-20-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-30-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-25-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-26-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-27-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-23-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-29-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-24-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-31-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-32-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3424-33-0x0000000000400000-0x00000000004B5000-memory.dmp

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memory/3648-2-0x0000000074880000-0x0000000074E31000-memory.dmp

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memory/3648-0-0x0000000074882000-0x0000000074883000-memory.dmp

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memory/3648-15-0x0000000074880000-0x0000000074E31000-memory.dmp

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memory/3648-1-0x0000000074880000-0x0000000074E31000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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