darkcomet | 8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 02:16

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General

Target

8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.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"	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.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
2248	attrib.exe
2512	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2652	ChromeCookie.exe

Loads dropped DLL 2 IoCs

pid	Process
1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\GoogleDebugJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ChromeCookies\\ChromeCookie.exe"	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\GoogleDebugJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ChromeCookies\\ChromeCookie.exe"	ChromeCookie.exe

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1852-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/files/0x000a00000001739b-6.dat	upx
behavioral1/memory/2652-14-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1852-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-57-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-58-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-59-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-63-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-65-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-67-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2652-70-0x0000000000400000-0x00000000004B7000-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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ChromeCookie.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeSecurityPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeTakeOwnershipPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeLoadDriverPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeSystemProfilePrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeSystemtimePrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeProfSingleProcessPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeIncBasePriorityPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeCreatePagefilePrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeBackupPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeRestorePrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeShutdownPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeDebugPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeSystemEnvironmentPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeChangeNotifyPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeRemoteShutdownPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeUndockPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeManageVolumePrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeImpersonatePrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeCreateGlobalPrivilege	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: 33	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: 34	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: 35	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
Token: SeIncreaseQuotaPrivilege	2652	ChromeCookie.exe
Token: SeSecurityPrivilege	2652	ChromeCookie.exe
Token: SeTakeOwnershipPrivilege	2652	ChromeCookie.exe
Token: SeLoadDriverPrivilege	2652	ChromeCookie.exe
Token: SeSystemProfilePrivilege	2652	ChromeCookie.exe
Token: SeSystemtimePrivilege	2652	ChromeCookie.exe
Token: SeProfSingleProcessPrivilege	2652	ChromeCookie.exe
Token: SeIncBasePriorityPrivilege	2652	ChromeCookie.exe
Token: SeCreatePagefilePrivilege	2652	ChromeCookie.exe
Token: SeBackupPrivilege	2652	ChromeCookie.exe
Token: SeRestorePrivilege	2652	ChromeCookie.exe
Token: SeShutdownPrivilege	2652	ChromeCookie.exe
Token: SeDebugPrivilege	2652	ChromeCookie.exe
Token: SeSystemEnvironmentPrivilege	2652	ChromeCookie.exe
Token: SeChangeNotifyPrivilege	2652	ChromeCookie.exe
Token: SeRemoteShutdownPrivilege	2652	ChromeCookie.exe
Token: SeUndockPrivilege	2652	ChromeCookie.exe
Token: SeManageVolumePrivilege	2652	ChromeCookie.exe
Token: SeImpersonatePrivilege	2652	ChromeCookie.exe
Token: SeCreateGlobalPrivilege	2652	ChromeCookie.exe
Token: 33	2652	ChromeCookie.exe
Token: 34	2652	ChromeCookie.exe
Token: 35	2652	ChromeCookie.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2652	ChromeCookie.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 2480	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	31
PID 1852 wrote to memory of 2480	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	31
PID 1852 wrote to memory of 2480	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	31
PID 1852 wrote to memory of 2480	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	31
PID 1852 wrote to memory of 2360	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	33
PID 1852 wrote to memory of 2360	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	33
PID 1852 wrote to memory of 2360	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	33
PID 1852 wrote to memory of 2360	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	33
PID 2360 wrote to memory of 2512	2360	cmd.exe	35
PID 2360 wrote to memory of 2512	2360	cmd.exe	35
PID 2360 wrote to memory of 2512	2360	cmd.exe	35
PID 2360 wrote to memory of 2512	2360	cmd.exe	35
PID 2480 wrote to memory of 2248	2480	cmd.exe	36
PID 2480 wrote to memory of 2248	2480	cmd.exe	36
PID 2480 wrote to memory of 2248	2480	cmd.exe	36
PID 2480 wrote to memory of 2248	2480	cmd.exe	36
PID 1852 wrote to memory of 2652	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	37
PID 1852 wrote to memory of 2652	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	37
PID 1852 wrote to memory of 2652	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	37
PID 1852 wrote to memory of 2652	1852	8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe	37
PID 2652 wrote to memory of 2836	2652	ChromeCookie.exe	38
PID 2652 wrote to memory of 2836	2652	ChromeCookie.exe	38
PID 2652 wrote to memory of 2836	2652	ChromeCookie.exe	38
PID 2652 wrote to memory of 2836	2652	ChromeCookie.exe	38
PID 2652 wrote to memory of 2816	2652	ChromeCookie.exe	39
PID 2652 wrote to memory of 2816	2652	ChromeCookie.exe	39
PID 2652 wrote to memory of 2816	2652	ChromeCookie.exe	39
PID 2652 wrote to memory of 2816	2652	ChromeCookie.exe	39
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40
PID 2652 wrote to memory of 2852	2652	ChromeCookie.exe	40

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2512	attrib.exe
2248	attrib.exe

C:\Users\Admin\AppData\Local\Temp\8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe
"C:\Users\Admin\AppData\Local\Temp\8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2480
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2248
- 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:2360
- - 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:2512
- 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:2652
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:2836
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:2816
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2852

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

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

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

Filesize
251KB

MD5
57bd4f73690590693b5b921f29679410

SHA1
c2cb47bf602541043589e979f21c3d7c1698e3ac

SHA256
8a3de78cf177be4c37c1525becf05af336c1dc2a4d181cae79f6903754902efa

SHA512
00b543644058a93f1c0a13e4d40b1c4e76f9581325f1773d79983761ca6903643e5a44717e7785b27a8fac2a6609c19032e3f412d3339e9cc5dc697791890318

Download Submit
memory/1852-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1852-1-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/1852-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1852-12-0x0000000003EF0000-0x0000000003FA7000-memory.dmp

Filesize
732KB

Download
memory/2652-63-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-57-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-58-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-59-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-14-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-65-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-66-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-67-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2652-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2852-54-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2852-16-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads