darkcomet | d4e0fbc80c5b130e7372443226520eea2bbe1f47af2edf82c727cce59862d944

General

Target

153c9a83b35793608d96499376758481_JaffaCakes118.exe
Size

560KB
MD5

153c9a83b35793608d96499376758481
SHA1

b75cab73b740c00248fb2700db0458b4d0fb013b
SHA256

d4e0fbc80c5b130e7372443226520eea2bbe1f47af2edf82c727cce59862d944
SHA512

177dc6142c4fb52cb0f2d6297ca65c4badf9e6f5475f508793904e66c9eef21f49995688882650060d5aa0592c7f1b6be0b16d52942d079e2eee07508502cb04
SSDEEP

12288:3eVOeheJYvaFzBIzYMjxTg8xJm5+H+0+KBPNAPqDckkA:OH8JiaFKjNAo+K8PFe

Score

10^/10

darkcomet guest16 persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

tebox.no-ip.biz:91

Mutex

DC_MUTEX-GX7446Y

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
GvQvW3bSTE6M
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

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:

153c9a83b35793608d96499376758481_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\\Documents\\MSDCSC\\msdcsc.exe"	153c9a83b35793608d96499376758481_JaffaCakes118.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:

153c9a83b35793608d96499376758481_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	153c9a83b35793608d96499376758481_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3008 msdcsc.exe

pid	process
3008	msdcsc.exe

Molebox Virtualization software 1 IoCs

Detects file using Molebox Virtualization software.

Processes:

resource	yara_rule
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe	molebox

UPX packed file 15 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/624-73-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-90-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-91-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-103-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-104-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-105-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-106-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-107-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-108-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-109-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-110-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-111-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-112-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-113-0x0000000000400000-0x0000000000511000-memory.dmp	upx
behavioral2/memory/3008-114-0x0000000000400000-0x0000000000511000-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:

153c9a83b35793608d96499376758481_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	153c9a83b35793608d96499376758481_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 48 IoCs

Processes:

153c9a83b35793608d96499376758481_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeSecurityPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeSystemtimePrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeBackupPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeRestorePrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeShutdownPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeDebugPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeUndockPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeManageVolumePrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeImpersonatePrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: 33	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: 34	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: 35	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: 36	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3008	msdcsc.exe
Token: SeSecurityPrivilege	3008	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3008	msdcsc.exe
Token: SeLoadDriverPrivilege	3008	msdcsc.exe
Token: SeSystemProfilePrivilege	3008	msdcsc.exe
Token: SeSystemtimePrivilege	3008	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3008	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3008	msdcsc.exe
Token: SeCreatePagefilePrivilege	3008	msdcsc.exe
Token: SeBackupPrivilege	3008	msdcsc.exe
Token: SeRestorePrivilege	3008	msdcsc.exe
Token: SeShutdownPrivilege	3008	msdcsc.exe
Token: SeDebugPrivilege	3008	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3008	msdcsc.exe
Token: SeChangeNotifyPrivilege	3008	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3008	msdcsc.exe
Token: SeUndockPrivilege	3008	msdcsc.exe
Token: SeManageVolumePrivilege	3008	msdcsc.exe
Token: SeImpersonatePrivilege	3008	msdcsc.exe
Token: SeCreateGlobalPrivilege	3008	msdcsc.exe
Token: 33	3008	msdcsc.exe
Token: 34	3008	msdcsc.exe
Token: 35	3008	msdcsc.exe
Token: 36	3008	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

3008 msdcsc.exe

pid	process
3008	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

153c9a83b35793608d96499376758481_JaffaCakes118.exe

description	pid	process	target process
PID 624 wrote to memory of 3008	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe	msdcsc.exe
PID 624 wrote to memory of 3008	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe	msdcsc.exe
PID 624 wrote to memory of 3008	624	153c9a83b35793608d96499376758481_JaffaCakes118.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\153c9a83b35793608d96499376758481_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\153c9a83b35793608d96499376758481_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:624

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3008

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4368,i,3724086843943218842,1026644135694712596,262144 --variations-seed-version --mojo-platform-channel-handle=4356 /prefetch:8
1⤵
PID:3276

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
560KB

MD5
153c9a83b35793608d96499376758481

SHA1
b75cab73b740c00248fb2700db0458b4d0fb013b

SHA256
d4e0fbc80c5b130e7372443226520eea2bbe1f47af2edf82c727cce59862d944

SHA512
177dc6142c4fb52cb0f2d6297ca65c4badf9e6f5475f508793904e66c9eef21f49995688882650060d5aa0592c7f1b6be0b16d52942d079e2eee07508502cb04

Download Submit
memory/624-1-0x00000000009C0000-0x0000000000A0E000-memory.dmp

Filesize
312KB

Download
memory/624-0-0x0000000000990000-0x0000000000991000-memory.dmp

Filesize
4KB

Download
memory/624-2-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/624-7-0x0000000076950000-0x0000000076951000-memory.dmp

Filesize
4KB

Download
memory/624-6-0x00000000009B0000-0x00000000009C0000-memory.dmp

Filesize
64KB

Download
memory/624-5-0x00000000023E0000-0x00000000023F0000-memory.dmp

Filesize
64KB

Download
memory/624-4-0x0000000076F12000-0x0000000076F13000-memory.dmp

Filesize
4KB

Download
memory/624-3-0x00000000023D0000-0x00000000023E0000-memory.dmp

Filesize
64KB

Download
memory/624-8-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/624-9-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/624-10-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/624-71-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/624-73-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/624-74-0x00000000009C0000-0x0000000000A0E000-memory.dmp

Filesize
312KB

Download
memory/624-75-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-72-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-77-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-76-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-78-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-79-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-82-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-84-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-86-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-88-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-89-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-87-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-85-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-83-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-81-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-80-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-90-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-91-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-92-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-96-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-102-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-101-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-100-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-99-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-98-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-97-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-95-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-94-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-93-0x0000000076930000-0x0000000076A20000-memory.dmp

Filesize
960KB

Download
memory/3008-103-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-104-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-105-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-106-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-107-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-108-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-109-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-110-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-111-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-112-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-113-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download
memory/3008-114-0x0000000000400000-0x0000000000511000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads