darkcomet | 4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c

Analysis

max time kernel
143s
max time network
150s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/11/2022, 16:03

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General

Target

4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Size

330KB
MD5

170a9310f4fee2a3344beaa63a0bd3d1
SHA1

435eb06cf036329dbc3e310fb3e9629c6c68f8e7
SHA256

4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c
SHA512

4d3e89935a7a6bfd061d176d40f54d7b8f46e5dab0ecd59f1d9291eaea3f8882acad326aa8e6e6bbaa1ce9a3b827f2d2d349e435ee75ce7c1fc82e2a9697fa5c
SSDEEP

6144:ojFy93LU92VxOtVflFud4TnxcpPTASCmqMorHwMYoSG:oFy9bPQZlFjrG0ZmYbw1oS

Score

10^/10

darkcomet kelly persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Kelly

90.34.201.154:1604

Mutex

DCMIN_MUTEX-MY3VXBN

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
aAPjs3ZWKKtp
install
true
offline_keylogger
true
persistence
false
reg_key
DarkComet RAT

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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\DCSCMIN\\IMDCSC.exe"	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe

Executes dropped EXE 1 IoCs

pid	Process
1652	IMDCSC.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2036-55-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral1/files/0x000b00000001230f-56.dat	upx
behavioral1/files/0x000b00000001230f-57.dat	upx
behavioral1/files/0x000b00000001230f-59.dat	upx
behavioral1/files/0x000b00000001230f-61.dat	upx
behavioral1/memory/1652-63-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral1/memory/2036-64-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral1/memory/1652-65-0x0000000000400000-0x00000000004E8000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\AppData\\Local\\Temp\\DCSCMIN\\IMDCSC.exe"	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeSecurityPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeTakeOwnershipPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeLoadDriverPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeSystemProfilePrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeSystemtimePrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeProfSingleProcessPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeIncBasePriorityPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeCreatePagefilePrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeBackupPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeRestorePrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeShutdownPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeDebugPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeSystemEnvironmentPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeChangeNotifyPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeRemoteShutdownPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeUndockPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeManageVolumePrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeImpersonatePrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeCreateGlobalPrivilege	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: 33	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: 34	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: 35	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
Token: SeIncreaseQuotaPrivilege	1652	IMDCSC.exe
Token: SeSecurityPrivilege	1652	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	1652	IMDCSC.exe
Token: SeLoadDriverPrivilege	1652	IMDCSC.exe
Token: SeSystemProfilePrivilege	1652	IMDCSC.exe
Token: SeSystemtimePrivilege	1652	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	1652	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	1652	IMDCSC.exe
Token: SeCreatePagefilePrivilege	1652	IMDCSC.exe
Token: SeBackupPrivilege	1652	IMDCSC.exe
Token: SeRestorePrivilege	1652	IMDCSC.exe
Token: SeShutdownPrivilege	1652	IMDCSC.exe
Token: SeDebugPrivilege	1652	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	1652	IMDCSC.exe
Token: SeChangeNotifyPrivilege	1652	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	1652	IMDCSC.exe
Token: SeUndockPrivilege	1652	IMDCSC.exe
Token: SeManageVolumePrivilege	1652	IMDCSC.exe
Token: SeImpersonatePrivilege	1652	IMDCSC.exe
Token: SeCreateGlobalPrivilege	1652	IMDCSC.exe
Token: 33	1652	IMDCSC.exe
Token: 34	1652	IMDCSC.exe
Token: 35	1652	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1652	IMDCSC.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 1652	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe	27
PID 2036 wrote to memory of 1652	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe	27
PID 2036 wrote to memory of 1652	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe	27
PID 2036 wrote to memory of 1652	2036	4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe	27

C:\Users\Admin\AppData\Local\Temp\4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe
"C:\Users\Admin\AppData\Local\Temp\4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe
  "C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1652

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe

Filesize
330KB

MD5
170a9310f4fee2a3344beaa63a0bd3d1

SHA1
435eb06cf036329dbc3e310fb3e9629c6c68f8e7

SHA256
4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c

SHA512
4d3e89935a7a6bfd061d176d40f54d7b8f46e5dab0ecd59f1d9291eaea3f8882acad326aa8e6e6bbaa1ce9a3b827f2d2d349e435ee75ce7c1fc82e2a9697fa5c

Download Submit
C:\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe

Filesize
330KB

MD5
170a9310f4fee2a3344beaa63a0bd3d1

SHA1
435eb06cf036329dbc3e310fb3e9629c6c68f8e7

SHA256
4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c

SHA512
4d3e89935a7a6bfd061d176d40f54d7b8f46e5dab0ecd59f1d9291eaea3f8882acad326aa8e6e6bbaa1ce9a3b827f2d2d349e435ee75ce7c1fc82e2a9697fa5c

Download Submit
\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe

Filesize
330KB

MD5
170a9310f4fee2a3344beaa63a0bd3d1

SHA1
435eb06cf036329dbc3e310fb3e9629c6c68f8e7

SHA256
4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c

SHA512
4d3e89935a7a6bfd061d176d40f54d7b8f46e5dab0ecd59f1d9291eaea3f8882acad326aa8e6e6bbaa1ce9a3b827f2d2d349e435ee75ce7c1fc82e2a9697fa5c

Download Submit
\Users\Admin\AppData\Local\Temp\DCSCMIN\IMDCSC.exe

Filesize
330KB

MD5
170a9310f4fee2a3344beaa63a0bd3d1

SHA1
435eb06cf036329dbc3e310fb3e9629c6c68f8e7

SHA256
4c44568cc7590269d3407c0bd61bb44fe4f0d0873e08ac82e0dc4c7163f48c2c

SHA512
4d3e89935a7a6bfd061d176d40f54d7b8f46e5dab0ecd59f1d9291eaea3f8882acad326aa8e6e6bbaa1ce9a3b827f2d2d349e435ee75ce7c1fc82e2a9697fa5c

Download Submit
memory/1652-63-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1652-65-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2036-54-0x0000000075C61000-0x0000000075C63000-memory.dmp

Filesize
8KB

Download
memory/2036-55-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2036-62-0x0000000003480000-0x0000000003568000-memory.dmp

Filesize
928KB

Download
memory/2036-64-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads