darkcomet | e04e6b24ecce5a89b75aad9da48f41f816754c732a2a0e76b9e90a45ea65f650

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18-08-2024 00:41

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General

Target

a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Size

389KB
MD5

a4bbbebd9bb26f02a0a7bb7092ac3d06
SHA1

687d705f948a9b7b430a4249eda0544d4b1de676
SHA256

e04e6b24ecce5a89b75aad9da48f41f816754c732a2a0e76b9e90a45ea65f650
SHA512

677dbf0de3d161a97a338989db1403972e0d2e796f8390bfb49969c6ae078230bb83fa9da2b6fd9257aca83ca7d84b2bcda8ab3897e388e661c2baaf2e06bfd1
SSDEEP

6144:BFRaI2EqBP/WsZL1PgLl4w0AidVym0EnarUBYVsceh0EUwUDLDv:TR72EqluswR45JTnaEY2Punwyvv

Score

10^/10

darkcomet latentbot defense_evasion discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

latentbot

backdoor2012.zapto.org

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
LatentBot
Modular trojan written in Delphi which has been in-the-wild since 2013.
trojan latentbot

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\\msdscsc.exe"	a4bbbebd9bb26f02a0a7bb7092ac3d06_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

pid	Process
1080	attrib.exe
636	attrib.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	HOURB.EXE

Executes dropped EXE 2 IoCs

pid	Process
3848	HOURB.EXE
4784	msdscsc.exe

UPX packed file 15 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4576-0-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/files/0x000800000002343a-18.dat	upx
behavioral2/memory/4576-74-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-78-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-82-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-84-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-86-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-87-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-89-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-90-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-91-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-92-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-93-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-94-0x0000000000400000-0x00000000004F4000-memory.dmp	upx
behavioral2/memory/4784-95-0x0000000000400000-0x00000000004F4000-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-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdscsc.exe"	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.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
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 8 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HOURB.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdscsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeSecurityPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeBackupPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeRestorePrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeShutdownPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeDebugPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeUndockPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: 33	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: 34	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: 35	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: 36	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4784	msdscsc.exe
Token: SeSecurityPrivilege	4784	msdscsc.exe
Token: SeTakeOwnershipPrivilege	4784	msdscsc.exe
Token: SeLoadDriverPrivilege	4784	msdscsc.exe
Token: SeSystemProfilePrivilege	4784	msdscsc.exe
Token: SeSystemtimePrivilege	4784	msdscsc.exe
Token: SeProfSingleProcessPrivilege	4784	msdscsc.exe
Token: SeIncBasePriorityPrivilege	4784	msdscsc.exe
Token: SeCreatePagefilePrivilege	4784	msdscsc.exe
Token: SeBackupPrivilege	4784	msdscsc.exe
Token: SeRestorePrivilege	4784	msdscsc.exe
Token: SeShutdownPrivilege	4784	msdscsc.exe
Token: SeDebugPrivilege	4784	msdscsc.exe
Token: SeSystemEnvironmentPrivilege	4784	msdscsc.exe
Token: SeChangeNotifyPrivilege	4784	msdscsc.exe
Token: SeRemoteShutdownPrivilege	4784	msdscsc.exe
Token: SeUndockPrivilege	4784	msdscsc.exe
Token: SeManageVolumePrivilege	4784	msdscsc.exe
Token: SeImpersonatePrivilege	4784	msdscsc.exe
Token: SeCreateGlobalPrivilege	4784	msdscsc.exe
Token: 33	4784	msdscsc.exe
Token: 34	4784	msdscsc.exe
Token: 35	4784	msdscsc.exe
Token: 36	4784	msdscsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4784	msdscsc.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4576 wrote to memory of 5112	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	88
PID 4576 wrote to memory of 5112	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	88
PID 4576 wrote to memory of 5112	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	88
PID 4576 wrote to memory of 3892	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	90
PID 4576 wrote to memory of 3892	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	90
PID 4576 wrote to memory of 3892	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	90
PID 5112 wrote to memory of 1080	5112	cmd.exe	92
PID 5112 wrote to memory of 1080	5112	cmd.exe	92
PID 5112 wrote to memory of 1080	5112	cmd.exe	92
PID 4576 wrote to memory of 3848	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	93
PID 4576 wrote to memory of 3848	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	93
PID 4576 wrote to memory of 3848	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	93
PID 3892 wrote to memory of 636	3892	cmd.exe	94
PID 3892 wrote to memory of 636	3892	cmd.exe	94
PID 3892 wrote to memory of 636	3892	cmd.exe	94
PID 4576 wrote to memory of 4784	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	95
PID 4576 wrote to memory of 4784	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	95
PID 4576 wrote to memory of 4784	4576	a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe	95
PID 4784 wrote to memory of 4464	4784	msdscsc.exe	98
PID 4784 wrote to memory of 4464	4784	msdscsc.exe	98
PID 4784 wrote to memory of 4464	4784	msdscsc.exe	98
PID 4784 wrote to memory of 228	4784	msdscsc.exe	99
PID 4784 wrote to memory of 228	4784	msdscsc.exe	99
PID 3848 wrote to memory of 4520	3848	HOURB.EXE	107
PID 3848 wrote to memory of 4520	3848	HOURB.EXE	107
PID 3848 wrote to memory of 4520	3848	HOURB.EXE	107

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1080	attrib.exe
636	attrib.exe

C:\Users\Admin\AppData\Local\Temp\a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a4bbbebd9bb26f02a0a7bb7092ac3d06_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:4576
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5112
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\a4bbbebd9bb26f02a0a7bb7092ac3d06_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3892
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:636
- C:\Users\Admin\AppData\Local\Temp\HOURB.EXE
  "C:\Users\Admin\AppData\Local\Temp\HOURB.EXE"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3848
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\HOURB.EXE" >> NUL
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4520
- C:\Users\Admin\Documents\MSDCSC\msdscsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdscsc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4784
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:4464
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:228

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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\HOURB.EXE

Filesize
57KB

MD5
7fc0fb347b7ce031d0fa292085fff13c

SHA1
f63fafcbeab1750528307720eb422a2e925d5647

SHA256
c27271f9efda81d2d7909bb7189266e22064d271f097a2d524a52e36ade9bca4

SHA512
b63d035edfac2a476cef586d896f75213582f22fa871486d00d362b585a341f34e730e878089910c76bcc56da6e9ec0245229c216045844028ab66174c771bce

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdscsc.exe

Filesize
389KB

MD5
a4bbbebd9bb26f02a0a7bb7092ac3d06

SHA1
687d705f948a9b7b430a4249eda0544d4b1de676

SHA256
e04e6b24ecce5a89b75aad9da48f41f816754c732a2a0e76b9e90a45ea65f650

SHA512
677dbf0de3d161a97a338989db1403972e0d2e796f8390bfb49969c6ae078230bb83fa9da2b6fd9257aca83ca7d84b2bcda8ab3897e388e661c2baaf2e06bfd1

Download Submit
memory/3848-77-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/3848-85-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/3848-16-0x0000000000400000-0x0000000000460000-memory.dmp

Filesize
384KB

Download
memory/4576-74-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4576-1-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/4576-0-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-87-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-84-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-82-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-86-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-78-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-89-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-90-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-91-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-92-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-93-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-94-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/4784-95-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads