darkcomet | 8006015733a4746f6017929d00b465c1c59843108e0b8916d6edf97c0716383d

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22-08-2024 21:18

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General

Target

b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Size

253KB
MD5

b92eb14e4f012bac6d8289dd6789a461
SHA1

f4f05f5982f8451fc47f972a08566e7ed9336106
SHA256

8006015733a4746f6017929d00b465c1c59843108e0b8916d6edf97c0716383d
SHA512

7c642d151f44d21c6060724c0e1185691540cc8d23110c8a23bc0c519e8005b3489338bccdeedda981542feed9a666760b73a97e7c72b273db44f6eab355f9b7
SSDEEP

6144:WD7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZ5:Wl8E4w5huat7UovONzbXw

Score

10^/10

darkcomet latentbot guest16 discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

aktestinmaster.zapto.org:80

Mutex

DC_MUTEX-TD1NNY0

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
95xUaYMYSK73
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

Extracted

Family

latentbot

aktestinmaster.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\\Desktop\\MSDCSC\\msdcsc.exe"	b92eb14e4f012bac6d8289dd6789a461_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
1844	attrib.exe
3224	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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4408	msdcsc.exe

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4544-0-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/files/0x00070000000234cb-6.dat	upx
behavioral2/memory/4544-16-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-15-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-19-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-20-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-21-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-22-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-23-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-24-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-25-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-26-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-27-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-28-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-29-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-30-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-31-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-32-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/4408-33-0x0000000000400000-0x00000000004BA000-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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Desktop\\MSDCSC\\msdcsc.exe"	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe

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 7 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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.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	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4408	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeSecurityPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeBackupPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeRestorePrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeShutdownPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeDebugPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeUndockPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: 33	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: 34	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: 35	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: 36	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4408	msdcsc.exe
Token: SeSecurityPrivilege	4408	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4408	msdcsc.exe
Token: SeLoadDriverPrivilege	4408	msdcsc.exe
Token: SeSystemProfilePrivilege	4408	msdcsc.exe
Token: SeSystemtimePrivilege	4408	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4408	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4408	msdcsc.exe
Token: SeCreatePagefilePrivilege	4408	msdcsc.exe
Token: SeBackupPrivilege	4408	msdcsc.exe
Token: SeRestorePrivilege	4408	msdcsc.exe
Token: SeShutdownPrivilege	4408	msdcsc.exe
Token: SeDebugPrivilege	4408	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4408	msdcsc.exe
Token: SeChangeNotifyPrivilege	4408	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4408	msdcsc.exe
Token: SeUndockPrivilege	4408	msdcsc.exe
Token: SeManageVolumePrivilege	4408	msdcsc.exe
Token: SeImpersonatePrivilege	4408	msdcsc.exe
Token: SeCreateGlobalPrivilege	4408	msdcsc.exe
Token: 33	4408	msdcsc.exe
Token: 34	4408	msdcsc.exe
Token: 35	4408	msdcsc.exe
Token: 36	4408	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4408	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 4544 wrote to memory of 3572	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe	84
PID 4544 wrote to memory of 3572	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe	84
PID 4544 wrote to memory of 3572	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe	84
PID 4544 wrote to memory of 4740	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe	86
PID 4544 wrote to memory of 4740	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe	86
PID 4544 wrote to memory of 4740	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe	86
PID 4544 wrote to memory of 4408	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe	88
PID 4544 wrote to memory of 4408	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe	88
PID 4544 wrote to memory of 4408	4544	b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe	88
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 4408 wrote to memory of 1180	4408	msdcsc.exe	89
PID 3572 wrote to memory of 1844	3572	cmd.exe	90
PID 3572 wrote to memory of 1844	3572	cmd.exe	90
PID 3572 wrote to memory of 1844	3572	cmd.exe	90
PID 4740 wrote to memory of 3224	4740	cmd.exe	92
PID 4740 wrote to memory of 3224	4740	cmd.exe	92
PID 4740 wrote to memory of 3224	4740	cmd.exe	92

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3224	attrib.exe
1844	attrib.exe

C:\Users\Admin\AppData\Local\Temp\b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3572
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\b92eb14e4f012bac6d8289dd6789a461_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1844
- 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:4740
- - 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:3224
- C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4408
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1180

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

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\Desktop\MSDCSC\msdcsc.exe

Filesize
253KB

MD5
b92eb14e4f012bac6d8289dd6789a461

SHA1
f4f05f5982f8451fc47f972a08566e7ed9336106

SHA256
8006015733a4746f6017929d00b465c1c59843108e0b8916d6edf97c0716383d

SHA512
7c642d151f44d21c6060724c0e1185691540cc8d23110c8a23bc0c519e8005b3489338bccdeedda981542feed9a666760b73a97e7c72b273db44f6eab355f9b7

Download Submit
memory/1180-18-0x0000000000A80000-0x0000000000A81000-memory.dmp

Filesize
4KB

Download
memory/4408-22-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-23-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-15-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-17-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/4408-33-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-20-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-21-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-32-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-31-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-24-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-25-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-26-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-27-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-28-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-29-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-30-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4544-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4544-0-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4544-1-0x0000000002380000-0x0000000002381000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads