darkcomet | a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac

General

Target

a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Size

784KB
MD5

0d564e476fc7812db303da40e79697d0
SHA1

9b9ae661a250966a18e72ad98abf3d6e0e0d1e8b
SHA256

a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac
SHA512

98a1747d2688cfeed81e4cfb461b7b4a55cd4943afa81169c8341f98c06846615c95dad82bd1d48f2434230c83faac6ea13f7bacafffcf9aca264ed25da84c4f
SSDEEP

12288:4cW7KEZlPzCy37/J1lrOfUkKlKVWetkuk2QOXAdn8/b5ZdKebJ:0KiRzC01dtIVWetkuk9Owdn8lO

Score

10^/10

darkcomet guest16 persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

192.168.30.128:1604

Mutex

DC_MUTEX-888FBA9

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
p5UHrgxwHf0b
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

T1004

Modify Registry

T1112

Processes:

a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.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"	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

316 msdcsc.exe

pid	process
316	msdcsc.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1532-57-0x0000000000400000-0x0000000000559000-memory.dmp	upx
\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx
\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe	upx
behavioral1/memory/316-66-0x0000000000400000-0x0000000000559000-memory.dmp	upx
behavioral1/memory/1532-67-0x0000000000400000-0x0000000000559000-memory.dmp	upx

Loads dropped DLL 2 IoCs

Processes:

a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe

pid	process
1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe

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

System Information Discovery
T1082
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

936 AcroRd32.exe

pid	process
936	AcroRd32.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeSecurityPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeTakeOwnershipPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeLoadDriverPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeSystemProfilePrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeSystemtimePrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeProfSingleProcessPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeIncBasePriorityPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeCreatePagefilePrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeBackupPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeRestorePrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeShutdownPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeDebugPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeSystemEnvironmentPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeChangeNotifyPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeRemoteShutdownPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeUndockPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeManageVolumePrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeImpersonatePrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeCreateGlobalPrivilege	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: 33	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: 34	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: 35	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
Token: SeIncreaseQuotaPrivilege	316	msdcsc.exe
Token: SeSecurityPrivilege	316	msdcsc.exe
Token: SeTakeOwnershipPrivilege	316	msdcsc.exe
Token: SeLoadDriverPrivilege	316	msdcsc.exe
Token: SeSystemProfilePrivilege	316	msdcsc.exe
Token: SeSystemtimePrivilege	316	msdcsc.exe
Token: SeProfSingleProcessPrivilege	316	msdcsc.exe
Token: SeIncBasePriorityPrivilege	316	msdcsc.exe
Token: SeCreatePagefilePrivilege	316	msdcsc.exe
Token: SeBackupPrivilege	316	msdcsc.exe
Token: SeRestorePrivilege	316	msdcsc.exe
Token: SeShutdownPrivilege	316	msdcsc.exe
Token: SeDebugPrivilege	316	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	316	msdcsc.exe
Token: SeChangeNotifyPrivilege	316	msdcsc.exe
Token: SeRemoteShutdownPrivilege	316	msdcsc.exe
Token: SeUndockPrivilege	316	msdcsc.exe
Token: SeManageVolumePrivilege	316	msdcsc.exe
Token: SeImpersonatePrivilege	316	msdcsc.exe
Token: SeCreateGlobalPrivilege	316	msdcsc.exe
Token: 33	316	msdcsc.exe
Token: 34	316	msdcsc.exe
Token: 35	316	msdcsc.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

AcroRd32.exemsdcsc.exe

pid process

936 AcroRd32.exe
936 AcroRd32.exe
936 AcroRd32.exe
316 msdcsc.exe
936 AcroRd32.exe

pid	process
936	AcroRd32.exe
936	AcroRd32.exe
936	AcroRd32.exe
316	msdcsc.exe
936	AcroRd32.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe

description	pid	process	target process
PID 1532 wrote to memory of 936	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe	AcroRd32.exe
PID 1532 wrote to memory of 936	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe	AcroRd32.exe
PID 1532 wrote to memory of 936	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe	AcroRd32.exe
PID 1532 wrote to memory of 936	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe	AcroRd32.exe
PID 1532 wrote to memory of 316	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe	msdcsc.exe
PID 1532 wrote to memory of 316	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe	msdcsc.exe
PID 1532 wrote to memory of 316	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe	msdcsc.exe
PID 1532 wrote to memory of 316	1532	a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe
"C:\Users\Admin\AppData\Local\Temp\a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1532

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\LABORATORIO MODULO 2 INFORMATION GATHERING.PDF"
2⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:936

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:316

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\LABORATORIO MODULO 2 INFORMATION GATHERING.PDF
Filesize
450KB

MD5
444a1cbd3faa9c90d236295b0650e289

SHA1
e6f6869dd333b41dcc02268ca92e08ad3df3987e

SHA256
c483b276ae3bf9d48183e20a16675074884af61d0a684fdc71be9c74be50864d

SHA512
b0e4eb5dbc22bfabb7e4f3fe2c1ae0d74d98fc6054975172848d936c37070a32e222c37718c5671ea423a1c57c298054d218844f5d84b31f67e1ad7b249f3f1c

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
784KB

MD5
0d564e476fc7812db303da40e79697d0

SHA1
9b9ae661a250966a18e72ad98abf3d6e0e0d1e8b

SHA256
a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac

SHA512
98a1747d2688cfeed81e4cfb461b7b4a55cd4943afa81169c8341f98c06846615c95dad82bd1d48f2434230c83faac6ea13f7bacafffcf9aca264ed25da84c4f

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
784KB

MD5
0d564e476fc7812db303da40e79697d0

SHA1
9b9ae661a250966a18e72ad98abf3d6e0e0d1e8b

SHA256
a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac

SHA512
98a1747d2688cfeed81e4cfb461b7b4a55cd4943afa81169c8341f98c06846615c95dad82bd1d48f2434230c83faac6ea13f7bacafffcf9aca264ed25da84c4f

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
784KB

MD5
0d564e476fc7812db303da40e79697d0

SHA1
9b9ae661a250966a18e72ad98abf3d6e0e0d1e8b

SHA256
a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac

SHA512
98a1747d2688cfeed81e4cfb461b7b4a55cd4943afa81169c8341f98c06846615c95dad82bd1d48f2434230c83faac6ea13f7bacafffcf9aca264ed25da84c4f

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
784KB

MD5
0d564e476fc7812db303da40e79697d0

SHA1
9b9ae661a250966a18e72ad98abf3d6e0e0d1e8b

SHA256
a79f889518c35f593e27b1eab59a066fe953196cddc0b9ac4114d966e3b596ac

SHA512
98a1747d2688cfeed81e4cfb461b7b4a55cd4943afa81169c8341f98c06846615c95dad82bd1d48f2434230c83faac6ea13f7bacafffcf9aca264ed25da84c4f

Download Submit
memory/316-61-0x0000000000000000-mapping.dmp

Download
memory/316-66-0x0000000000400000-0x0000000000559000-memory.dmp

Filesize
1.3MB

Download
memory/936-55-0x0000000000000000-mapping.dmp

Download
memory/1532-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

Filesize
8KB

Download
memory/1532-57-0x0000000000400000-0x0000000000559000-memory.dmp

Filesize
1.3MB

Download
memory/1532-65-0x0000000003450000-0x00000000035A9000-memory.dmp

Filesize
1.3MB

Download
memory/1532-67-0x0000000000400000-0x0000000000559000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads