darkcomet | 8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 11:40

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General

Target

test.exe
Size

251KB
MD5

57bd4f73690590693b5b921f29679410
SHA1

c2cb47bf602541043589e979f21c3d7c1698e3ac
SHA256

8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa
SHA512

00b543644058a93f1c0a13e4d40b1c4e76f9581325f1773d79983761ca6903643e5a44717e7785b27a8fac2a6609c19032e3f412d3339e9cc5dc697791890318
SSDEEP

6144:ZcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37:ZcW7KEZlPzCy37

Score

10^/10

darkcomet googledebugger discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

GoogleDebugger

147.185.221.24:14161

Mutex

RO_MUTEX-8HU43EZ

Attributes

InstallPath
ChromeCookies\ChromeCookie.exe
gencode
WN0BLB8aPxBw
install
true
offline_keylogger
true
persistence
true
reg_key
GoogleDebugJ

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

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\\ChromeCookies\\ChromeCookie.exe"	test.exe

Disables Task Manager via registry modification
evasion

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

pid	Process
5016	attrib.exe
4276	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	test.exe

Executes dropped EXE 1 IoCs

pid	Process
4740	ChromeCookie.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GoogleDebugJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ChromeCookies\\ChromeCookie.exe"	test.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GoogleDebugJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ChromeCookies\\ChromeCookie.exe"	ChromeCookie.exe

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/5108-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/files/0x000a000000023b7a-6.dat	upx
behavioral2/memory/5108-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4740-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4740-40-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4740-42-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4740-44-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4740-46-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral2/memory/4740-52-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	test.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ChromeCookie.exe

Modifies registry class 1 IoCs

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

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	5108	test.exe
Token: SeSecurityPrivilege	5108	test.exe
Token: SeTakeOwnershipPrivilege	5108	test.exe
Token: SeLoadDriverPrivilege	5108	test.exe
Token: SeSystemProfilePrivilege	5108	test.exe
Token: SeSystemtimePrivilege	5108	test.exe
Token: SeProfSingleProcessPrivilege	5108	test.exe
Token: SeIncBasePriorityPrivilege	5108	test.exe
Token: SeCreatePagefilePrivilege	5108	test.exe
Token: SeBackupPrivilege	5108	test.exe
Token: SeRestorePrivilege	5108	test.exe
Token: SeShutdownPrivilege	5108	test.exe
Token: SeDebugPrivilege	5108	test.exe
Token: SeSystemEnvironmentPrivilege	5108	test.exe
Token: SeChangeNotifyPrivilege	5108	test.exe
Token: SeRemoteShutdownPrivilege	5108	test.exe
Token: SeUndockPrivilege	5108	test.exe
Token: SeManageVolumePrivilege	5108	test.exe
Token: SeImpersonatePrivilege	5108	test.exe
Token: SeCreateGlobalPrivilege	5108	test.exe
Token: 33	5108	test.exe
Token: 34	5108	test.exe
Token: 35	5108	test.exe
Token: 36	5108	test.exe
Token: SeIncreaseQuotaPrivilege	4740	ChromeCookie.exe
Token: SeSecurityPrivilege	4740	ChromeCookie.exe
Token: SeTakeOwnershipPrivilege	4740	ChromeCookie.exe
Token: SeLoadDriverPrivilege	4740	ChromeCookie.exe
Token: SeSystemProfilePrivilege	4740	ChromeCookie.exe
Token: SeSystemtimePrivilege	4740	ChromeCookie.exe
Token: SeProfSingleProcessPrivilege	4740	ChromeCookie.exe
Token: SeIncBasePriorityPrivilege	4740	ChromeCookie.exe
Token: SeCreatePagefilePrivilege	4740	ChromeCookie.exe
Token: SeBackupPrivilege	4740	ChromeCookie.exe
Token: SeRestorePrivilege	4740	ChromeCookie.exe
Token: SeShutdownPrivilege	4740	ChromeCookie.exe
Token: SeDebugPrivilege	4740	ChromeCookie.exe
Token: SeSystemEnvironmentPrivilege	4740	ChromeCookie.exe
Token: SeChangeNotifyPrivilege	4740	ChromeCookie.exe
Token: SeRemoteShutdownPrivilege	4740	ChromeCookie.exe
Token: SeUndockPrivilege	4740	ChromeCookie.exe
Token: SeManageVolumePrivilege	4740	ChromeCookie.exe
Token: SeImpersonatePrivilege	4740	ChromeCookie.exe
Token: SeCreateGlobalPrivilege	4740	ChromeCookie.exe
Token: 33	4740	ChromeCookie.exe
Token: 34	4740	ChromeCookie.exe
Token: 35	4740	ChromeCookie.exe
Token: 36	4740	ChromeCookie.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4740	ChromeCookie.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 5108 wrote to memory of 5112	5108	test.exe	83
PID 5108 wrote to memory of 5112	5108	test.exe	83
PID 5108 wrote to memory of 5112	5108	test.exe	83
PID 5108 wrote to memory of 2092	5108	test.exe	84
PID 5108 wrote to memory of 2092	5108	test.exe	84
PID 5108 wrote to memory of 2092	5108	test.exe	84
PID 5112 wrote to memory of 5016	5112	cmd.exe	87
PID 5112 wrote to memory of 5016	5112	cmd.exe	87
PID 5112 wrote to memory of 5016	5112	cmd.exe	87
PID 2092 wrote to memory of 4276	2092	cmd.exe	88
PID 2092 wrote to memory of 4276	2092	cmd.exe	88
PID 2092 wrote to memory of 4276	2092	cmd.exe	88
PID 5108 wrote to memory of 4740	5108	test.exe	89
PID 5108 wrote to memory of 4740	5108	test.exe	89
PID 5108 wrote to memory of 4740	5108	test.exe	89
PID 4740 wrote to memory of 1188	4740	ChromeCookie.exe	90
PID 4740 wrote to memory of 1188	4740	ChromeCookie.exe	90
PID 4740 wrote to memory of 1188	4740	ChromeCookie.exe	90
PID 4740 wrote to memory of 1880	4740	ChromeCookie.exe	91
PID 4740 wrote to memory of 1880	4740	ChromeCookie.exe	91
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92
PID 4740 wrote to memory of 2432	4740	ChromeCookie.exe	92

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
5016	attrib.exe
4276	attrib.exe

C:\Users\Admin\AppData\Local\Temp\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\test.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5112
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\test.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:5016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2092
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:4276
- C:\Users\Admin\AppData\Local\Temp\ChromeCookies\ChromeCookie.exe
  "C:\Users\Admin\AppData\Local\Temp\ChromeCookies\ChromeCookie.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4740
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:1188
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:1880
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ChromeCookies\ChromeCookie.exe

Filesize
251KB

MD5
57bd4f73690590693b5b921f29679410

SHA1
c2cb47bf602541043589e979f21c3d7c1698e3ac

SHA256
8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa

SHA512
00b543644058a93f1c0a13e4d40b1c4e76f9581325f1773d79983761ca6903643e5a44717e7785b27a8fac2a6609c19032e3f412d3339e9cc5dc697791890318

Download Submit
memory/2432-37-0x0000000001400000-0x0000000001401000-memory.dmp

Filesize
4KB

Download
memory/4740-36-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/4740-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4740-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4740-42-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4740-44-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4740-46-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4740-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/5108-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/5108-1-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/5108-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads