darkcomet | 7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba

General

Target

7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Size

756KB
MD5

530c49bd38b31f7858a2ae6735defa70
SHA1

56c222a587fc3c14fc64bd249da8499b9172954a
SHA256

7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba
SHA512

6d8558e9afad76308823d8d1fd6a81beb35ef4d3b717dee5d1a4f3e629f7cafdc6eafcc3bc9a385d8e4ed5098cb4f52a664a2301f03589573f4007787ae33f2b
SSDEEP

12288:K9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h0:GZ1xuVVjfFoynPaVBUR8f+kN10EBW

Score

10^/10

darkcomet hacker evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Hacker

C2

leave1.no-ip.biz:1604

leave1.no-ip.biz:25565

Mutex

DC_MUTEX-SF1AS3Y

Attributes

InstallPath
Adobe.exe
gencode
v3wr0fYZFSSx
install
true
offline_keylogger
true
persistence
true
reg_key
explorer

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:

7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.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\\Adobe.exe"	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

Adobe.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	Adobe.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	Adobe.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	Adobe.exe

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

Adobe.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	Adobe.exe

Executes dropped EXE 1 IoCs

Processes:

Adobe.exe

pid process

4384 Adobe.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

3304 attrib.exe
4836 attrib.exe

pid	process
4384	Adobe.exe

pid	process
3304	attrib.exe
4836	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:

7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exeAdobe.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Adobe.exe"	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Adobe.exe"	Adobe.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 1 IoCs

Processes:

7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Adobe.exe

pid process

4384 Adobe.exe

pid	process
4384	Adobe.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exeAdobe.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeSecurityPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeTakeOwnershipPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeLoadDriverPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeSystemProfilePrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeSystemtimePrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeProfSingleProcessPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeIncBasePriorityPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeCreatePagefilePrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeBackupPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeRestorePrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeShutdownPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeDebugPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeSystemEnvironmentPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeChangeNotifyPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeRemoteShutdownPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeUndockPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeManageVolumePrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeImpersonatePrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeCreateGlobalPrivilege	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: 33	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: 34	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: 35	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: 36	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
Token: SeIncreaseQuotaPrivilege	4384	Adobe.exe
Token: SeSecurityPrivilege	4384	Adobe.exe
Token: SeTakeOwnershipPrivilege	4384	Adobe.exe
Token: SeLoadDriverPrivilege	4384	Adobe.exe
Token: SeSystemProfilePrivilege	4384	Adobe.exe
Token: SeSystemtimePrivilege	4384	Adobe.exe
Token: SeProfSingleProcessPrivilege	4384	Adobe.exe
Token: SeIncBasePriorityPrivilege	4384	Adobe.exe
Token: SeCreatePagefilePrivilege	4384	Adobe.exe
Token: SeBackupPrivilege	4384	Adobe.exe
Token: SeRestorePrivilege	4384	Adobe.exe
Token: SeShutdownPrivilege	4384	Adobe.exe
Token: SeDebugPrivilege	4384	Adobe.exe
Token: SeSystemEnvironmentPrivilege	4384	Adobe.exe
Token: SeChangeNotifyPrivilege	4384	Adobe.exe
Token: SeRemoteShutdownPrivilege	4384	Adobe.exe
Token: SeUndockPrivilege	4384	Adobe.exe
Token: SeManageVolumePrivilege	4384	Adobe.exe
Token: SeImpersonatePrivilege	4384	Adobe.exe
Token: SeCreateGlobalPrivilege	4384	Adobe.exe
Token: 33	4384	Adobe.exe
Token: 34	4384	Adobe.exe
Token: 35	4384	Adobe.exe
Token: 36	4384	Adobe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Adobe.exe

pid process

4384 Adobe.exe

pid	process
4384	Adobe.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.execmd.execmd.exeAdobe.exe

description	pid	process	target process
PID 400 wrote to memory of 3952	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe	cmd.exe
PID 400 wrote to memory of 3952	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe	cmd.exe
PID 400 wrote to memory of 3952	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe	cmd.exe
PID 400 wrote to memory of 2348	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe	cmd.exe
PID 400 wrote to memory of 2348	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe	cmd.exe
PID 400 wrote to memory of 2348	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe	cmd.exe
PID 3952 wrote to memory of 3304	3952	cmd.exe	attrib.exe
PID 3952 wrote to memory of 3304	3952	cmd.exe	attrib.exe
PID 3952 wrote to memory of 3304	3952	cmd.exe	attrib.exe
PID 2348 wrote to memory of 4836	2348	cmd.exe	attrib.exe
PID 2348 wrote to memory of 4836	2348	cmd.exe	attrib.exe
PID 2348 wrote to memory of 4836	2348	cmd.exe	attrib.exe
PID 400 wrote to memory of 4384	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe	Adobe.exe
PID 400 wrote to memory of 4384	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe	Adobe.exe
PID 400 wrote to memory of 4384	400	7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe	Adobe.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe
PID 4384 wrote to memory of 4956	4384	Adobe.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

Adobe.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	Adobe.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	Adobe.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	Adobe.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

3304 attrib.exe
4836 attrib.exe

pid	process
3304	attrib.exe
4836	attrib.exe

C:\Users\Admin\AppData\Local\Temp\7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe
"C:\Users\Admin\AppData\Local\Temp\7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe"
1⤵
- 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:400

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:3952

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:3304

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:2348

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4836

C:\Users\Admin\AppData\Local\Temp\Adobe.exe
"C:\Users\Admin\AppData\Local\Temp\Adobe.exe"
2⤵
- Modifies firewall policy service
- Disables RegEdit via registry modification
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4384

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:4956

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

1

T1031

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

4

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\Adobe.exe
Filesize
756KB

MD5
530c49bd38b31f7858a2ae6735defa70

SHA1
56c222a587fc3c14fc64bd249da8499b9172954a

SHA256
7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba

SHA512
6d8558e9afad76308823d8d1fd6a81beb35ef4d3b717dee5d1a4f3e629f7cafdc6eafcc3bc9a385d8e4ed5098cb4f52a664a2301f03589573f4007787ae33f2b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Adobe.exe
Filesize
756KB

MD5
530c49bd38b31f7858a2ae6735defa70

SHA1
56c222a587fc3c14fc64bd249da8499b9172954a

SHA256
7a39658c3e764db49a93f8246dc600cdd6dfe5472b376ea1f0f50f378c4d5cba

SHA512
6d8558e9afad76308823d8d1fd6a81beb35ef4d3b717dee5d1a4f3e629f7cafdc6eafcc3bc9a385d8e4ed5098cb4f52a664a2301f03589573f4007787ae33f2b

Download Submit
memory/2348-133-0x0000000000000000-mapping.dmp

Download
memory/3304-134-0x0000000000000000-mapping.dmp

Download
memory/3952-132-0x0000000000000000-mapping.dmp

Download
memory/4384-136-0x0000000000000000-mapping.dmp

Download
memory/4836-135-0x0000000000000000-mapping.dmp

Download
memory/4956-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads