darkcomet | 2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a

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

C2

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

5112 MP4.EXE
4492 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

612 attrib.exe
1448 attrib.exe

pid	process
5112	MP4.EXE
4492	msdcsc.exe

pid	process
612	attrib.exe
1448	attrib.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exeMP4.EXE

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	MP4.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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

Modifies registry class 2 IoCs

Processes:

MP4.EXE2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	MP4.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

vlc.exe

pid process

4364 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

vlc.exemsdcsc.exe

pid process

4364 vlc.exe
4492 msdcsc.exe

Suspicious use of AdjustPrivilegeToken 52 IoCs

Processes:

MP4.EXEmsdcsc.exeAUDIODG.EXEvlc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	5112	MP4.EXE
Token: SeSecurityPrivilege	5112	MP4.EXE
Token: SeTakeOwnershipPrivilege	5112	MP4.EXE
Token: SeLoadDriverPrivilege	5112	MP4.EXE
Token: SeSystemProfilePrivilege	5112	MP4.EXE
Token: SeSystemtimePrivilege	5112	MP4.EXE
Token: SeProfSingleProcessPrivilege	5112	MP4.EXE
Token: SeIncBasePriorityPrivilege	5112	MP4.EXE
Token: SeCreatePagefilePrivilege	5112	MP4.EXE
Token: SeBackupPrivilege	5112	MP4.EXE
Token: SeRestorePrivilege	5112	MP4.EXE
Token: SeShutdownPrivilege	5112	MP4.EXE
Token: SeDebugPrivilege	5112	MP4.EXE
Token: SeSystemEnvironmentPrivilege	5112	MP4.EXE
Token: SeChangeNotifyPrivilege	5112	MP4.EXE
Token: SeRemoteShutdownPrivilege	5112	MP4.EXE
Token: SeUndockPrivilege	5112	MP4.EXE
Token: SeManageVolumePrivilege	5112	MP4.EXE
Token: SeImpersonatePrivilege	5112	MP4.EXE
Token: SeCreateGlobalPrivilege	5112	MP4.EXE
Token: 33	5112	MP4.EXE
Token: 34	5112	MP4.EXE
Token: 35	5112	MP4.EXE
Token: 36	5112	MP4.EXE
Token: SeIncreaseQuotaPrivilege	4492	msdcsc.exe
Token: SeSecurityPrivilege	4492	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4492	msdcsc.exe
Token: SeLoadDriverPrivilege	4492	msdcsc.exe
Token: SeSystemProfilePrivilege	4492	msdcsc.exe
Token: SeSystemtimePrivilege	4492	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4492	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4492	msdcsc.exe
Token: SeCreatePagefilePrivilege	4492	msdcsc.exe
Token: SeBackupPrivilege	4492	msdcsc.exe
Token: SeRestorePrivilege	4492	msdcsc.exe
Token: SeShutdownPrivilege	4492	msdcsc.exe
Token: SeDebugPrivilege	4492	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4492	msdcsc.exe
Token: SeChangeNotifyPrivilege	4492	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4492	msdcsc.exe
Token: SeUndockPrivilege	4492	msdcsc.exe
Token: SeManageVolumePrivilege	4492	msdcsc.exe
Token: SeImpersonatePrivilege	4492	msdcsc.exe
Token: SeCreateGlobalPrivilege	4492	msdcsc.exe
Token: 33	4492	msdcsc.exe
Token: 34	4492	msdcsc.exe
Token: 35	4492	msdcsc.exe
Token: 36	4492	msdcsc.exe
Token: 33	3860	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	3860	AUDIODG.EXE
Token: 33	4364	vlc.exe
Token: SeIncBasePriorityPrivilege	4364	vlc.exe

Suspicious use of FindShellTrayWindow 24 IoCs

Processes:

vlc.exe

pid	process
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe
4364	vlc.exe

Suspicious use of SendNotifyMessage 7 IoCs

Processes:

vlc.exe

pid process

4364 vlc.exe
4364 vlc.exe
4364 vlc.exe
4364 vlc.exe
4364 vlc.exe
4364 vlc.exe
4364 vlc.exe
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

vlc.exemsdcsc.exe

pid process

4364 vlc.exe
4492 msdcsc.exe
4364 vlc.exe
4364 vlc.exe
4364 vlc.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

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

description	pid	process	target process
PID 4028 wrote to memory of 4364	4028	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	vlc.exe
PID 4028 wrote to memory of 4364	4028	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	vlc.exe
PID 4028 wrote to memory of 5112	4028	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	MP4.EXE
PID 4028 wrote to memory of 5112	4028	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	MP4.EXE
PID 4028 wrote to memory of 5112	4028	2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe	MP4.EXE
PID 5112 wrote to memory of 4236	5112	MP4.EXE	cmd.exe
PID 5112 wrote to memory of 4236	5112	MP4.EXE	cmd.exe
PID 5112 wrote to memory of 4236	5112	MP4.EXE	cmd.exe
PID 5112 wrote to memory of 5100	5112	MP4.EXE	cmd.exe
PID 5112 wrote to memory of 5100	5112	MP4.EXE	cmd.exe
PID 5112 wrote to memory of 5100	5112	MP4.EXE	cmd.exe
PID 5100 wrote to memory of 612	5100	cmd.exe	attrib.exe
PID 5100 wrote to memory of 612	5100	cmd.exe	attrib.exe
PID 5100 wrote to memory of 612	5100	cmd.exe	attrib.exe
PID 4236 wrote to memory of 1448	4236	cmd.exe	attrib.exe
PID 4236 wrote to memory of 1448	4236	cmd.exe	attrib.exe
PID 4236 wrote to memory of 1448	4236	cmd.exe	attrib.exe
PID 5112 wrote to memory of 4492	5112	MP4.EXE	msdcsc.exe
PID 5112 wrote to memory of 4492	5112	MP4.EXE	msdcsc.exe
PID 5112 wrote to memory of 4492	5112	MP4.EXE	msdcsc.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe
PID 4492 wrote to memory of 4220	4492	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

612 attrib.exe
1448 attrib.exe

pid	process
612	attrib.exe
1448	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe
"C:\Users\Admin\AppData\Local\Temp\2cfe915e1498dd8ac3643ddc5812f5731d6ecc7d0efde6ad9a9bf35bcb735d0a.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4028

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:4364

C:\Users\Admin\AppData\Local\Temp\MP4.EXE
"C:\Users\Admin\AppData\Local\Temp\MP4.EXE"
2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5112

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:4236

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:1448

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:5100

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
4⤵
- Sets file to hidden
- Views/modifies file attributes
PID:612

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:4492

C:\Windows\SysWOW64\notepad.exe
notepad
4⤵
PID:4220

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x3fc 0x490
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3860

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Hidden Files and Directories

2

T1158

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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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
memory/612-140-0x0000000000000000-mapping.dmp

Download
memory/1448-141-0x0000000000000000-mapping.dmp

Download
memory/4220-145-0x0000000000000000-mapping.dmp

Download
memory/4236-138-0x0000000000000000-mapping.dmp

Download
memory/4364-133-0x0000000000000000-mapping.dmp

Download
memory/4492-142-0x0000000000000000-mapping.dmp

Download
memory/5100-139-0x0000000000000000-mapping.dmp

Download
memory/5112-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads