darkcomet | 5131d0642a54d02c54545e823e706b89be27243608a047c07349fbc30e07dde5

General

Target

VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe
Size

782KB
MD5

f0a5b6bb52a088b9b8ee76b341e58e2b
SHA1

d362d5dee873c8c62489b95f4beb9fb7c5887ba4
SHA256

5131d0642a54d02c54545e823e706b89be27243608a047c07349fbc30e07dde5
SHA512

d06932744b4a7c156deaf76fe6cf64aea3ee4f5a4e7465674f710d5791296d0f66fa922267e137d7bc135e2d42c7efe97cffdda9ae922f678b260ded8c256a60
SSDEEP

12288:o9y0Qed1VRfr655Kw6kRaDsaXz2QEPCJj7bo7C1OC40r24bvryRrQ4ZUCR:o9Ce3/s5b5sV06j7bYAl42n/yRMNC

Score

10^/10

darkcomet evasion persistence rat trojan

Malware Config

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:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\permdata\\java.exe"	svchost.exe

Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exe

pid process

3600 attrib.exe

pid	process
3600	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

Processes:

svchost.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	svchost.exe

Executes dropped EXE 2 IoCs

Processes:

svchost.exejava.exe

pid process

4552 svchost.exe
4604 java.exe

pid	process
4552	svchost.exe
4604	java.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exesvchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Essentials = "C:\\Users\\Admin\\AppData\\Roaming\\MsMpEng.exe"	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\java = "C:\\permdata\\java.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe

description pid process target process

PID 4984 set thread context of 4552 4984 VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe svchost.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 4984 set thread context of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

Processes:

VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe
Token: SeIncreaseQuotaPrivilege	4552	svchost.exe
Token: SeSecurityPrivilege	4552	svchost.exe
Token: SeTakeOwnershipPrivilege	4552	svchost.exe
Token: SeLoadDriverPrivilege	4552	svchost.exe
Token: SeSystemProfilePrivilege	4552	svchost.exe
Token: SeSystemtimePrivilege	4552	svchost.exe
Token: SeProfSingleProcessPrivilege	4552	svchost.exe
Token: SeIncBasePriorityPrivilege	4552	svchost.exe
Token: SeCreatePagefilePrivilege	4552	svchost.exe
Token: SeBackupPrivilege	4552	svchost.exe
Token: SeRestorePrivilege	4552	svchost.exe
Token: SeShutdownPrivilege	4552	svchost.exe
Token: SeDebugPrivilege	4552	svchost.exe
Token: SeSystemEnvironmentPrivilege	4552	svchost.exe
Token: SeChangeNotifyPrivilege	4552	svchost.exe
Token: SeRemoteShutdownPrivilege	4552	svchost.exe
Token: SeUndockPrivilege	4552	svchost.exe
Token: SeManageVolumePrivilege	4552	svchost.exe
Token: SeImpersonatePrivilege	4552	svchost.exe
Token: SeCreateGlobalPrivilege	4552	svchost.exe
Token: 33	4552	svchost.exe
Token: 34	4552	svchost.exe
Token: 35	4552	svchost.exe
Token: 36	4552	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exesvchost.execmd.exe

description	pid	process	target process
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4984 wrote to memory of 4552	4984	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 4552 wrote to memory of 4620	4552	svchost.exe	cmd.exe
PID 4552 wrote to memory of 4620	4552	svchost.exe	cmd.exe
PID 4552 wrote to memory of 4620	4552	svchost.exe	cmd.exe
PID 4552 wrote to memory of 4604	4552	svchost.exe	java.exe
PID 4552 wrote to memory of 4604	4552	svchost.exe	java.exe
PID 4552 wrote to memory of 4604	4552	svchost.exe	java.exe
PID 4620 wrote to memory of 3600	4620	cmd.exe	attrib.exe
PID 4620 wrote to memory of 3600	4620	cmd.exe	attrib.exe
PID 4620 wrote to memory of 3600	4620	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exe

pid process

3600 attrib.exe

pid	process
3600	attrib.exe

C:\Users\Admin\AppData\Local\Temp\VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4984

C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\AppData\Local\Temp\svchost.exe
2⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4552

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:4620

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
4⤵
- Sets file to hidden
- Views/modifies file attributes
PID:3600

C:\permdata\java.exe
"C:\permdata\java.exe"
3⤵
- Executes dropped EXE
PID:4604

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

Hide Artifacts

2

T1564

Hidden Files and Directories

2

T1564.001

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\svchost.exe
Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat
Filesize
50B

MD5
b774ae3fb1da087e1f83b4f7b2060e5a

SHA1
97eb9be49ac3af9c851c9e1e84e32bfd53e325a8

SHA256
adaf4a84b41e410b02e261cfd0fe7739d98647eab73c3badd32ac6e39f26351b

SHA512
f75d0f95f7306d26a12b414bfe37b97fbd37546cb3c6e403def7077329ddffb4b45d5c5f0ba0e7bb6d72851d2d691b0a85267beead42f7cbf2e8c3d45a3b4701

Download Submit
memory/4552-6-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/4552-9-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/4552-13-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/4552-11-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/4552-18-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download
memory/4552-29-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/4984-0-0x0000000074A62000-0x0000000074A63000-memory.dmp

Filesize
4KB

Download
memory/4984-1-0x0000000074A60000-0x0000000075011000-memory.dmp

Filesize
5.7MB

Download
memory/4984-3-0x0000000074A60000-0x0000000075011000-memory.dmp

Filesize
5.7MB

Download
memory/4984-31-0x0000000074A60000-0x0000000075011000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads