darkcomet | 39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd

General

Target

39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Size

1.2MB
MD5

9fc38321f1909639ad798581695a4356
SHA1

1909410463a9e964dd2053c36ac8d90e8bc515b5
SHA256

39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd
SHA512

1022d56042dc083d14fdf89314fab7b36f63798a3c818dae9caded437d4e19350f66d612c296e545037cd71ca32594b1da54b4f4b769e7957e0180f5d6e7abc0
SSDEEP

24576:0FJlc+Eeep4XeQs1HoITBZVYW1yvIjls+54RTGEKFEVlvsfAvbIL+LHLRVe:amdYoHo4ZVYW8vIq+5YGil88Ve

Score

10^/10

darkcomet unknown evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

UNKNOWN

C2

abdulzokhan.no-ip.org:2323

Mutex

DC_MUTEX-UP6NB9G

Attributes

InstallPath
NokiaOviSuite.exe
gencode
qEy8YaRgYauv
install
true
offline_keylogger
true
persistence
true
reg_key
NokiaOviSuite

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:

39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe

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\\NokiaOviSuite.exe"	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe

Executes dropped EXE 2 IoCs

Processes:

NokiaOviSuite.exeNokiaOviSuite.exe

pid process

4460 NokiaOviSuite.exe
4448 NokiaOviSuite.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

4984 attrib.exe
1656 attrib.exe

pid	process
4460	NokiaOviSuite.exe
4448	NokiaOviSuite.exe

pid	process
4984	attrib.exe
1656	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:

39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NokiaOviSuite = "C:\\Users\\Admin\\AppData\\Local\\Temp\\NokiaOviSuite.exe"	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exeNokiaOviSuite.exe

description	pid	process	target process
PID 1536 set thread context of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 4460 set thread context of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4920 4448 WerFault.exe NokiaOviSuite.exe

pid	pid_target	process	target process
4920	4448	WerFault.exe	NokiaOviSuite.exe

Modifies registry class 1 IoCs

Processes:

39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

Processes:

39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exeNokiaOviSuite.exe

description	pid	process
Token: SeDebugPrivilege	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeIncreaseQuotaPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeSecurityPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeTakeOwnershipPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeLoadDriverPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeSystemProfilePrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeSystemtimePrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeProfSingleProcessPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeIncBasePriorityPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeCreatePagefilePrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeBackupPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeRestorePrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeShutdownPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeDebugPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeSystemEnvironmentPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeChangeNotifyPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeRemoteShutdownPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeUndockPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeManageVolumePrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeImpersonatePrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeCreateGlobalPrivilege	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: 33	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: 34	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: 35	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: 36	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
Token: SeDebugPrivilege	4460	NokiaOviSuite.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.execmd.execmd.exeNokiaOviSuite.exe

description	pid	process	target process
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1536 wrote to memory of 1548	1536	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
PID 1548 wrote to memory of 4620	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	cmd.exe
PID 1548 wrote to memory of 4620	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	cmd.exe
PID 1548 wrote to memory of 4620	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	cmd.exe
PID 1548 wrote to memory of 4612	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	cmd.exe
PID 1548 wrote to memory of 4612	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	cmd.exe
PID 1548 wrote to memory of 4612	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	cmd.exe
PID 4620 wrote to memory of 4984	4620	cmd.exe	attrib.exe
PID 4620 wrote to memory of 4984	4620	cmd.exe	attrib.exe
PID 4620 wrote to memory of 4984	4620	cmd.exe	attrib.exe
PID 4612 wrote to memory of 1656	4612	cmd.exe	attrib.exe
PID 4612 wrote to memory of 1656	4612	cmd.exe	attrib.exe
PID 4612 wrote to memory of 1656	4612	cmd.exe	attrib.exe
PID 1548 wrote to memory of 4460	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	NokiaOviSuite.exe
PID 1548 wrote to memory of 4460	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	NokiaOviSuite.exe
PID 1548 wrote to memory of 4460	1548	39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe
PID 4460 wrote to memory of 4448	4460	NokiaOviSuite.exe	NokiaOviSuite.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1656 attrib.exe
4984 attrib.exe

pid	process
1656	attrib.exe
4984	attrib.exe

C:\Users\Admin\AppData\Local\Temp\39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
"C:\Users\Admin\AppData\Local\Temp\39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1536

C:\Users\Admin\AppData\Local\Temp\39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
C:\Users\Admin\AppData\Local\Temp\39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe
2⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1548

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:4620

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd.exe" +s +h
4⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4984

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:4612

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
4⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1656

C:\Users\Admin\AppData\Local\Temp\NokiaOviSuite.exe
"C:\Users\Admin\AppData\Local\Temp\NokiaOviSuite.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4460

C:\Users\Admin\AppData\Local\Temp\NokiaOviSuite.exe
C:\Users\Admin\AppData\Local\Temp\NokiaOviSuite.exe
4⤵
- Executes dropped EXE
PID:4448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 80
5⤵
- Program crash
PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4448 -ip 4448
1⤵
PID:3384

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\NokiaOviSuite.exe
Filesize
1.2MB

MD5
9fc38321f1909639ad798581695a4356

SHA1
1909410463a9e964dd2053c36ac8d90e8bc515b5

SHA256
39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd

SHA512
1022d56042dc083d14fdf89314fab7b36f63798a3c818dae9caded437d4e19350f66d612c296e545037cd71ca32594b1da54b4f4b769e7957e0180f5d6e7abc0

Download Submit
C:\Users\Admin\AppData\Local\Temp\NokiaOviSuite.exe
Filesize
1.2MB

MD5
9fc38321f1909639ad798581695a4356

SHA1
1909410463a9e964dd2053c36ac8d90e8bc515b5

SHA256
39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd

SHA512
1022d56042dc083d14fdf89314fab7b36f63798a3c818dae9caded437d4e19350f66d612c296e545037cd71ca32594b1da54b4f4b769e7957e0180f5d6e7abc0

Download Submit
C:\Users\Admin\AppData\Local\Temp\NokiaOviSuite.exe
Filesize
1.2MB

MD5
9fc38321f1909639ad798581695a4356

SHA1
1909410463a9e964dd2053c36ac8d90e8bc515b5

SHA256
39b3577f623fbfd5b84250da4b9233df05787582f210acffcc3058515e0cd1cd

SHA512
1022d56042dc083d14fdf89314fab7b36f63798a3c818dae9caded437d4e19350f66d612c296e545037cd71ca32594b1da54b4f4b769e7957e0180f5d6e7abc0

Download Submit
memory/1536-137-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/1536-132-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/1548-136-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1548-135-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1548-151-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1548-133-0x0000000000000000-mapping.dmp

Download
memory/1548-138-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1548-134-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1656-142-0x0000000000000000-mapping.dmp

Download
memory/4448-147-0x0000000000000000-mapping.dmp

Download
memory/4460-143-0x0000000000000000-mapping.dmp

Download
memory/4460-146-0x00000000735C0000-0x0000000073B71000-memory.dmp

Filesize
5.7MB

Download
memory/4460-150-0x00000000735C0000-0x0000000073B71000-memory.dmp

Filesize
5.7MB

Download
memory/4612-140-0x0000000000000000-mapping.dmp

Download
memory/4620-139-0x0000000000000000-mapping.dmp

Download
memory/4984-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads