darkcomet | 77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8

General

Target

77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Size

663KB
MD5

8231d8d9d1c38a7f2ebce20944bcfc63
SHA1

ca190e6cab231bd140dab3a13c7a59cb88c85e7b
SHA256

77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8
SHA512

8025a7c2231a562bf4d0ff76a813585606462a51a1b76a34d54f0640b4f591d8abdc32928795162f987f6dfd42f16e10c340f27a62ad87b18cec81bdb9a68cc2
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9EkNC/:KZ1xuVVjfFoynPaVBUR8f+kN10Ed

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

80.222.152.67:80

Mutex

DC_MUTEX-QWMWN2U

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
hdQRh37piHv1
install
true
offline_keylogger
true
persistence
false
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

T1547.004

Modify Registry

T1112

Processes:

77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.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\\MSDCSC\\msdcsc.exe"	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe

Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

3064 attrib.exe
1852 attrib.exe

pid	process
3064	attrib.exe
1852	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:

77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3056 msdcsc.exe

pid	process
3056	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeSecurityPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeTakeOwnershipPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeLoadDriverPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeSystemProfilePrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeSystemtimePrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeProfSingleProcessPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeIncBasePriorityPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeCreatePagefilePrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeBackupPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeRestorePrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeShutdownPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeDebugPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeSystemEnvironmentPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeChangeNotifyPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeRemoteShutdownPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeUndockPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeManageVolumePrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeImpersonatePrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeCreateGlobalPrivilege	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: 33	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: 34	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: 35	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: 36	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
Token: SeIncreaseQuotaPrivilege	3056	msdcsc.exe
Token: SeSecurityPrivilege	3056	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3056	msdcsc.exe
Token: SeLoadDriverPrivilege	3056	msdcsc.exe
Token: SeSystemProfilePrivilege	3056	msdcsc.exe
Token: SeSystemtimePrivilege	3056	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3056	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3056	msdcsc.exe
Token: SeCreatePagefilePrivilege	3056	msdcsc.exe
Token: SeBackupPrivilege	3056	msdcsc.exe
Token: SeRestorePrivilege	3056	msdcsc.exe
Token: SeShutdownPrivilege	3056	msdcsc.exe
Token: SeDebugPrivilege	3056	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3056	msdcsc.exe
Token: SeChangeNotifyPrivilege	3056	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3056	msdcsc.exe
Token: SeUndockPrivilege	3056	msdcsc.exe
Token: SeManageVolumePrivilege	3056	msdcsc.exe
Token: SeImpersonatePrivilege	3056	msdcsc.exe
Token: SeCreateGlobalPrivilege	3056	msdcsc.exe
Token: 33	3056	msdcsc.exe
Token: 34	3056	msdcsc.exe
Token: 35	3056	msdcsc.exe
Token: 36	3056	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

3056 msdcsc.exe

pid	process
3056	msdcsc.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.execmd.execmd.exe

description	pid	process	target process
PID 1620 wrote to memory of 4524	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe	cmd.exe
PID 1620 wrote to memory of 4524	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe	cmd.exe
PID 1620 wrote to memory of 4524	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe	cmd.exe
PID 1620 wrote to memory of 2392	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe	cmd.exe
PID 1620 wrote to memory of 2392	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe	cmd.exe
PID 1620 wrote to memory of 2392	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe	cmd.exe
PID 1620 wrote to memory of 3056	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe	msdcsc.exe
PID 1620 wrote to memory of 3056	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe	msdcsc.exe
PID 1620 wrote to memory of 3056	1620	77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe	msdcsc.exe
PID 4524 wrote to memory of 3064	4524	cmd.exe	attrib.exe
PID 4524 wrote to memory of 3064	4524	cmd.exe	attrib.exe
PID 4524 wrote to memory of 3064	4524	cmd.exe	attrib.exe
PID 2392 wrote to memory of 1852	2392	cmd.exe	attrib.exe
PID 2392 wrote to memory of 1852	2392	cmd.exe	attrib.exe
PID 2392 wrote to memory of 1852	2392	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

3064 attrib.exe
1852 attrib.exe

pid	process
3064	attrib.exe
1852	attrib.exe

C:\Users\Admin\AppData\Local\Temp\77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe
"C:\Users\Admin\AppData\Local\Temp\77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1620

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:4524

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:3064

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:2392

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1852

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3056

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\MSDCSC\msdcsc.exe
Filesize
663KB

MD5
8231d8d9d1c38a7f2ebce20944bcfc63

SHA1
ca190e6cab231bd140dab3a13c7a59cb88c85e7b

SHA256
77058147d37749df7378249a128a5298de49787eba629b634090849456774ce8

SHA512
8025a7c2231a562bf4d0ff76a813585606462a51a1b76a34d54f0640b4f591d8abdc32928795162f987f6dfd42f16e10c340f27a62ad87b18cec81bdb9a68cc2

Download Submit
memory/1620-0-0x0000000000B10000-0x0000000000B11000-memory.dmp

Filesize
4KB

Download
memory/1620-14-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3056-13-0x0000000002180000-0x0000000002181000-memory.dmp

Filesize
4KB

Download
memory/3056-15-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/3056-17-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads