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

2504 attrib.exe
Executes dropped EXE 2 IoCs

Processes:

svchost.exejava.exe

pid process

1944 svchost.exe
2484 java.exe
Loads dropped DLL 2 IoCs

Processes:

VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exesvchost.exe

pid process

2796 VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe
1944 svchost.exe

pid	process
2504	attrib.exe

pid	process
1944	svchost.exe
2484	java.exe

pid	process
2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe
1944	svchost.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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft Essentials = "C:\\Users\\Admin\\AppData\\Roaming\\MsMpEng.exe"	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\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 2796 set thread context of 1944 2796 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 2796 set thread context of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe
Token: SeIncreaseQuotaPrivilege	1944	svchost.exe
Token: SeSecurityPrivilege	1944	svchost.exe
Token: SeTakeOwnershipPrivilege	1944	svchost.exe
Token: SeLoadDriverPrivilege	1944	svchost.exe
Token: SeSystemProfilePrivilege	1944	svchost.exe
Token: SeSystemtimePrivilege	1944	svchost.exe
Token: SeProfSingleProcessPrivilege	1944	svchost.exe
Token: SeIncBasePriorityPrivilege	1944	svchost.exe
Token: SeCreatePagefilePrivilege	1944	svchost.exe
Token: SeBackupPrivilege	1944	svchost.exe
Token: SeRestorePrivilege	1944	svchost.exe
Token: SeShutdownPrivilege	1944	svchost.exe
Token: SeDebugPrivilege	1944	svchost.exe
Token: SeSystemEnvironmentPrivilege	1944	svchost.exe
Token: SeChangeNotifyPrivilege	1944	svchost.exe
Token: SeRemoteShutdownPrivilege	1944	svchost.exe
Token: SeUndockPrivilege	1944	svchost.exe
Token: SeManageVolumePrivilege	1944	svchost.exe
Token: SeImpersonatePrivilege	1944	svchost.exe
Token: SeCreateGlobalPrivilege	1944	svchost.exe
Token: 33	1944	svchost.exe
Token: 34	1944	svchost.exe
Token: 35	1944	svchost.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exesvchost.execmd.exe

description	pid	process	target process
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 2796 wrote to memory of 1944	2796	VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe	svchost.exe
PID 1944 wrote to memory of 2608	1944	svchost.exe	cmd.exe
PID 1944 wrote to memory of 2608	1944	svchost.exe	cmd.exe
PID 1944 wrote to memory of 2608	1944	svchost.exe	cmd.exe
PID 1944 wrote to memory of 2608	1944	svchost.exe	cmd.exe
PID 1944 wrote to memory of 2484	1944	svchost.exe	java.exe
PID 1944 wrote to memory of 2484	1944	svchost.exe	java.exe
PID 1944 wrote to memory of 2484	1944	svchost.exe	java.exe
PID 1944 wrote to memory of 2484	1944	svchost.exe	java.exe
PID 2608 wrote to memory of 2504	2608	cmd.exe	attrib.exe
PID 2608 wrote to memory of 2504	2608	cmd.exe	attrib.exe
PID 2608 wrote to memory of 2504	2608	cmd.exe	attrib.exe
PID 2608 wrote to memory of 2504	2608	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exe

pid process

2504 attrib.exe

pid	process
2504	attrib.exe

C:\Users\Admin\AppData\Local\Temp\VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_f0a5b6bb52a088b9b8ee76b341e58e2b.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2796

C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\AppData\Local\Temp\svchost.exe
2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:2608

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
4⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2504

C:\permdata\java.exe
"C:\permdata\java.exe"
3⤵
- Executes dropped EXE
PID:2484

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

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

MD5
b774ae3fb1da087e1f83b4f7b2060e5a

SHA1
97eb9be49ac3af9c851c9e1e84e32bfd53e325a8

SHA256
adaf4a84b41e410b02e261cfd0fe7739d98647eab73c3badd32ac6e39f26351b

SHA512
f75d0f95f7306d26a12b414bfe37b97fbd37546cb3c6e403def7077329ddffb4b45d5c5f0ba0e7bb6d72851d2d691b0a85267beead42f7cbf2e8c3d45a3b4701

Download Submit
\Users\Admin\AppData\Local\Temp\svchost.exe
Filesize
31KB

MD5
ed797d8dc2c92401985d162e42ffa450

SHA1
0f02fc517c7facc4baefde4fe9467fb6488ebabe

SHA256
b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e

SHA512
e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2

Download Submit
memory/1944-16-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-14-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-8-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-25-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-23-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1944-20-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-18-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-52-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-32-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-13-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-12-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-10-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/1944-26-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/2796-31-0x00000000744A0000-0x0000000074A4B000-memory.dmp

Filesize
5.7MB

Download
memory/2796-3-0x00000000744A0000-0x0000000074A4B000-memory.dmp

Filesize
5.7MB

Download
memory/2796-2-0x00000000744A0000-0x0000000074A4B000-memory.dmp

Filesize
5.7MB

Download
memory/2796-0-0x00000000744A1000-0x00000000744A2000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads