darkcomet | 2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a

Analysis

max time kernel
148s
max time network
47s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 22:57

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General

Target

2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe
Size

5.5MB
MD5

564218aa29b51a220144e9d060d1252a
SHA1

9168cca0beea91546fb15a7b936e66d1668015e1
SHA256

2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a
SHA512

2cd1418e7611b40c524a01d8e3ba6684c96b462690b0915c807ddb60b5d49090125e8fdc8c4bffc435d1add68d82d4094d48c74bd689f00e05d486cbfe6c03bc
SSDEEP

98304:rwaQ8ZDJgyslyzoXmaErfYCNmkv5D2PFpuxvnkyyhAuax5O1RVidVSe8+QU/:rwaQ8ZDJw/WdftNnv5D29p0kyVuaO1Rn

Score

10^/10

darkcomet danijela evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Danijela

jebozovan.no-ip.org:81

Mutex

DC_MUTEX-KQRQZPG

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
v7PAnw881ZWq
install
true
offline_keylogger
true
persistence
true
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:

MP4.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"	MP4.EXE

Executes dropped EXE 2 IoCs

Processes:

MP4.EXEmsdcsc.exe

pid process

1752 MP4.EXE
1608 msdcsc.exe
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1344 attrib.exe
1700 attrib.exe

pid	process
1752	MP4.EXE
1608	msdcsc.exe

pid	process
1344	attrib.exe
1700	attrib.exe

Loads dropped DLL 4 IoCs

Processes:

2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exeMP4.EXE

pid	process
1732	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe
1732	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe
1752	MP4.EXE
1752	MP4.EXE

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

MP4.EXEmsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	MP4.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.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: AddClipboardFormatListener 1 IoCs

Processes:

vlc.exe

pid process

960 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

vlc.exemsdcsc.exe

pid process

960 vlc.exe
1608 msdcsc.exe

Suspicious use of AdjustPrivilegeToken 52 IoCs

Processes:

MP4.EXEmsdcsc.exeAUDIODG.EXEvlc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1752	MP4.EXE
Token: SeSecurityPrivilege	1752	MP4.EXE
Token: SeTakeOwnershipPrivilege	1752	MP4.EXE
Token: SeLoadDriverPrivilege	1752	MP4.EXE
Token: SeSystemProfilePrivilege	1752	MP4.EXE
Token: SeSystemtimePrivilege	1752	MP4.EXE
Token: SeProfSingleProcessPrivilege	1752	MP4.EXE
Token: SeIncBasePriorityPrivilege	1752	MP4.EXE
Token: SeCreatePagefilePrivilege	1752	MP4.EXE
Token: SeBackupPrivilege	1752	MP4.EXE
Token: SeRestorePrivilege	1752	MP4.EXE
Token: SeShutdownPrivilege	1752	MP4.EXE
Token: SeDebugPrivilege	1752	MP4.EXE
Token: SeSystemEnvironmentPrivilege	1752	MP4.EXE
Token: SeChangeNotifyPrivilege	1752	MP4.EXE
Token: SeRemoteShutdownPrivilege	1752	MP4.EXE
Token: SeUndockPrivilege	1752	MP4.EXE
Token: SeManageVolumePrivilege	1752	MP4.EXE
Token: SeImpersonatePrivilege	1752	MP4.EXE
Token: SeCreateGlobalPrivilege	1752	MP4.EXE
Token: 33	1752	MP4.EXE
Token: 34	1752	MP4.EXE
Token: 35	1752	MP4.EXE
Token: SeIncreaseQuotaPrivilege	1608	msdcsc.exe
Token: SeSecurityPrivilege	1608	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1608	msdcsc.exe
Token: SeLoadDriverPrivilege	1608	msdcsc.exe
Token: SeSystemProfilePrivilege	1608	msdcsc.exe
Token: SeSystemtimePrivilege	1608	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1608	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1608	msdcsc.exe
Token: SeCreatePagefilePrivilege	1608	msdcsc.exe
Token: SeBackupPrivilege	1608	msdcsc.exe
Token: SeRestorePrivilege	1608	msdcsc.exe
Token: SeShutdownPrivilege	1608	msdcsc.exe
Token: SeDebugPrivilege	1608	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1608	msdcsc.exe
Token: SeChangeNotifyPrivilege	1608	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1608	msdcsc.exe
Token: SeUndockPrivilege	1608	msdcsc.exe
Token: SeManageVolumePrivilege	1608	msdcsc.exe
Token: SeImpersonatePrivilege	1608	msdcsc.exe
Token: SeCreateGlobalPrivilege	1608	msdcsc.exe
Token: 33	1608	msdcsc.exe
Token: 34	1608	msdcsc.exe
Token: 35	1608	msdcsc.exe
Token: 33	808	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	808	AUDIODG.EXE
Token: 33	808	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	808	AUDIODG.EXE
Token: 33	960	vlc.exe
Token: SeIncBasePriorityPrivilege	960	vlc.exe

Suspicious use of FindShellTrayWindow 28 IoCs

Processes:

vlc.exe

pid	process
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe
960	vlc.exe

Suspicious use of SendNotifyMessage 8 IoCs

Processes:

vlc.exe

pid process

960 vlc.exe
960 vlc.exe
960 vlc.exe
960 vlc.exe
960 vlc.exe
960 vlc.exe
960 vlc.exe
960 vlc.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

vlc.exemsdcsc.exe

pid process

960 vlc.exe
1608 msdcsc.exe

Suspicious use of WriteProcessMemory 51 IoCs

Processes:

2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exeMP4.EXEcmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1732 wrote to memory of 960	1732	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	vlc.exe
PID 1732 wrote to memory of 960	1732	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	vlc.exe
PID 1732 wrote to memory of 960	1732	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	vlc.exe
PID 1732 wrote to memory of 960	1732	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	vlc.exe
PID 1732 wrote to memory of 1752	1732	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	MP4.EXE
PID 1732 wrote to memory of 1752	1732	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	MP4.EXE
PID 1732 wrote to memory of 1752	1732	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	MP4.EXE
PID 1732 wrote to memory of 1752	1732	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	MP4.EXE
PID 1752 wrote to memory of 1016	1752	MP4.EXE	cmd.exe
PID 1752 wrote to memory of 1016	1752	MP4.EXE	cmd.exe
PID 1752 wrote to memory of 1016	1752	MP4.EXE	cmd.exe
PID 1752 wrote to memory of 1016	1752	MP4.EXE	cmd.exe
PID 1752 wrote to memory of 896	1752	MP4.EXE	cmd.exe
PID 1752 wrote to memory of 896	1752	MP4.EXE	cmd.exe
PID 1752 wrote to memory of 896	1752	MP4.EXE	cmd.exe
PID 1752 wrote to memory of 896	1752	MP4.EXE	cmd.exe
PID 896 wrote to memory of 1344	896	cmd.exe	attrib.exe
PID 896 wrote to memory of 1344	896	cmd.exe	attrib.exe
PID 896 wrote to memory of 1344	896	cmd.exe	attrib.exe
PID 896 wrote to memory of 1344	896	cmd.exe	attrib.exe
PID 1016 wrote to memory of 1700	1016	cmd.exe	attrib.exe
PID 1016 wrote to memory of 1700	1016	cmd.exe	attrib.exe
PID 1016 wrote to memory of 1700	1016	cmd.exe	attrib.exe
PID 1016 wrote to memory of 1700	1016	cmd.exe	attrib.exe
PID 1752 wrote to memory of 1608	1752	MP4.EXE	msdcsc.exe
PID 1752 wrote to memory of 1608	1752	MP4.EXE	msdcsc.exe
PID 1752 wrote to memory of 1608	1752	MP4.EXE	msdcsc.exe
PID 1752 wrote to memory of 1608	1752	MP4.EXE	msdcsc.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe
PID 1608 wrote to memory of 1988	1608	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1344 attrib.exe
1700 attrib.exe

pid	process
1344	attrib.exe
1700	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe
"C:\Users\Admin\AppData\Local\Temp\2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1732

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\10659678_611934625585217_1729858071_N.MP4"
2⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:960

C:\Users\Admin\AppData\Local\Temp\MP4.EXE
"C:\Users\Admin\AppData\Local\Temp\MP4.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:1752

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\MP4.EXE" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:1016

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\MP4.EXE" +s +h
4⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1700

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:896

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
4⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1344

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1608

C:\Windows\SysWOW64\notepad.exe
notepad
4⤵
PID:1988

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x2ec
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:808

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Hidden Files and Directories

T1158

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\10659678_611934625585217_1729858071_N.MP4
Filesize
4.8MB

MD5
59b96cc342be62284bbb61034ecac637

SHA1
08c3cd9dff1e984d404c6d27713b3c6240c303fe

SHA256
a53fb6945371857d91ff6af4ff5ed4e5209a085a78590b0aaf508bf9866a64d8

SHA512
857fa98335f8312193ec5ab8a86ed7d231c9f2eaebe5390ce7e42332e59555935610d351081bbb42bd77f8365a61fb35b2da185f0ab2cd599109243a0d69dd3f

Download Submit
C:\Users\Admin\AppData\Local\Temp\MP4.EXE
Filesize
658KB

MD5
2be3505116f8113795bf495486b94e35

SHA1
a5e3be49d4cf80c22e0dc7af491340fc1181e029

SHA256
9b56811a9e3d61828afaf142f95164cd31ca7f9f55f097f11c4ac05f3d9d5bec

SHA512
0a91560d262d86935c126af1a7cefb1ef454c97dc19ec7eeee65026872af7c2e998535c23c845adc6b6cbce7ba1afd26b4d04567794607e7f80d3ed35d97c452

Download Submit
C:\Users\Admin\AppData\Local\Temp\MP4.EXE
Filesize
658KB

MD5
2be3505116f8113795bf495486b94e35

SHA1
a5e3be49d4cf80c22e0dc7af491340fc1181e029

SHA256
9b56811a9e3d61828afaf142f95164cd31ca7f9f55f097f11c4ac05f3d9d5bec

SHA512
0a91560d262d86935c126af1a7cefb1ef454c97dc19ec7eeee65026872af7c2e998535c23c845adc6b6cbce7ba1afd26b4d04567794607e7f80d3ed35d97c452

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
2be3505116f8113795bf495486b94e35

SHA1
a5e3be49d4cf80c22e0dc7af491340fc1181e029

SHA256
9b56811a9e3d61828afaf142f95164cd31ca7f9f55f097f11c4ac05f3d9d5bec

SHA512
0a91560d262d86935c126af1a7cefb1ef454c97dc19ec7eeee65026872af7c2e998535c23c845adc6b6cbce7ba1afd26b4d04567794607e7f80d3ed35d97c452

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
2be3505116f8113795bf495486b94e35

SHA1
a5e3be49d4cf80c22e0dc7af491340fc1181e029

SHA256
9b56811a9e3d61828afaf142f95164cd31ca7f9f55f097f11c4ac05f3d9d5bec

SHA512
0a91560d262d86935c126af1a7cefb1ef454c97dc19ec7eeee65026872af7c2e998535c23c845adc6b6cbce7ba1afd26b4d04567794607e7f80d3ed35d97c452

Download Submit
\Users\Admin\AppData\Local\Temp\MP4.EXE
Filesize
658KB

MD5
2be3505116f8113795bf495486b94e35

SHA1
a5e3be49d4cf80c22e0dc7af491340fc1181e029

SHA256
9b56811a9e3d61828afaf142f95164cd31ca7f9f55f097f11c4ac05f3d9d5bec

SHA512
0a91560d262d86935c126af1a7cefb1ef454c97dc19ec7eeee65026872af7c2e998535c23c845adc6b6cbce7ba1afd26b4d04567794607e7f80d3ed35d97c452

Download Submit
\Users\Admin\AppData\Local\Temp\MP4.EXE
Filesize
658KB

MD5
2be3505116f8113795bf495486b94e35

SHA1
a5e3be49d4cf80c22e0dc7af491340fc1181e029

SHA256
9b56811a9e3d61828afaf142f95164cd31ca7f9f55f097f11c4ac05f3d9d5bec

SHA512
0a91560d262d86935c126af1a7cefb1ef454c97dc19ec7eeee65026872af7c2e998535c23c845adc6b6cbce7ba1afd26b4d04567794607e7f80d3ed35d97c452

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
2be3505116f8113795bf495486b94e35

SHA1
a5e3be49d4cf80c22e0dc7af491340fc1181e029

SHA256
9b56811a9e3d61828afaf142f95164cd31ca7f9f55f097f11c4ac05f3d9d5bec

SHA512
0a91560d262d86935c126af1a7cefb1ef454c97dc19ec7eeee65026872af7c2e998535c23c845adc6b6cbce7ba1afd26b4d04567794607e7f80d3ed35d97c452

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
2be3505116f8113795bf495486b94e35

SHA1
a5e3be49d4cf80c22e0dc7af491340fc1181e029

SHA256
9b56811a9e3d61828afaf142f95164cd31ca7f9f55f097f11c4ac05f3d9d5bec

SHA512
0a91560d262d86935c126af1a7cefb1ef454c97dc19ec7eeee65026872af7c2e998535c23c845adc6b6cbce7ba1afd26b4d04567794607e7f80d3ed35d97c452

Download Submit
memory/896-65-0x0000000000000000-mapping.dmp

Download
memory/960-62-0x000007FEFB6A1000-0x000007FEFB6A3000-memory.dmp

Filesize
8KB

Download
memory/960-55-0x0000000000000000-mapping.dmp

Download
memory/1016-64-0x0000000000000000-mapping.dmp

Download
memory/1344-66-0x0000000000000000-mapping.dmp

Download
memory/1608-70-0x0000000000000000-mapping.dmp

Download
memory/1700-67-0x0000000000000000-mapping.dmp

Download
memory/1732-54-0x0000000075771000-0x0000000075773000-memory.dmp

Filesize
8KB

Download
memory/1752-58-0x0000000000000000-mapping.dmp

Download
memory/1988-74-0x0000000000000000-mapping.dmp

Download