darkcomet | d067eb6f1e71610b17e8c2f04e4aabc5a8dcac2f45f0f1b7c2e513f8f0aeccef

Analysis

max time kernel
150s
max time network
127s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
16-08-2024 21:47

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General

Target

a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Size

2.5MB
MD5

a00fb301627569c02a6049948edfa4f4
SHA1

876cd672502a32f935b3d74c0709c7ab18d007c0
SHA256

d067eb6f1e71610b17e8c2f04e4aabc5a8dcac2f45f0f1b7c2e513f8f0aeccef
SHA512

fa9778c1b0ef8881b0e6b0c05b48210873b8d329675c947560a23aa74391190e8fac82c379635312fc6a4c070c3f3ec53b82315b2bb0a3d9b3238f77e502fa0d
SSDEEP

49152:Q2ZTGLeCbvW9giG81t6wlK2qinPu6cxyo7POaf/K601R:Q2EViZtt0iPu/oo7POx

Score

10^/10

darkcomet latentbot discovery evasion persistence rat themida trojan

Malware Config

Extracted

Family

latentbot

interbarcellona.zapto.org

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
LatentBot
Modular trojan written in Delphi which has been in-the-wild since 2013.
trojan latentbot

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe"	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exewinupdate.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.exe

Executes dropped EXE 1 IoCs

Processes:

winupdate.exe

pid	Process
2760	winupdate.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exewinupdate.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Wine	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Wine	winupdate.exe

Loads dropped DLL 4 IoCs

Processes:

a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exewinupdate.exe

pid	Process
1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
2760	winupdate.exe
2760	winupdate.exe
2760	winupdate.exe

Themida packer 26 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1908-0-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/1908-2-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/1908-3-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/1908-6-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/files/0x000900000001722b-8.dat	themida
behavioral1/memory/2760-17-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-23-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-24-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-25-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-26-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-29-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-31-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-32-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-33-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-34-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-35-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-36-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-37-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-38-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-39-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-40-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-41-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-42-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-43-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-44-0x0000000000400000-0x0000000000887000-memory.dmp	themida
behavioral1/memory/2760-45-0x0000000000400000-0x0000000000887000-memory.dmp	themida

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exewinupdate.exe

pid	Process
1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
2760	winupdate.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

winupdate.exea00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe

Checks processor information in registry 2 TTPs 8 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

winupdate.exea00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupdate.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupdate.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exewinupdate.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exewinupdate.exe

pid	Process
1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
2760	winupdate.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exewinupdate.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeSecurityPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeBackupPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeRestorePrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeShutdownPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeDebugPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeUndockPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: 33	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: 34	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: 35	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2760	winupdate.exe
Token: SeSecurityPrivilege	2760	winupdate.exe
Token: SeTakeOwnershipPrivilege	2760	winupdate.exe
Token: SeLoadDriverPrivilege	2760	winupdate.exe
Token: SeSystemProfilePrivilege	2760	winupdate.exe
Token: SeSystemtimePrivilege	2760	winupdate.exe
Token: SeProfSingleProcessPrivilege	2760	winupdate.exe
Token: SeIncBasePriorityPrivilege	2760	winupdate.exe
Token: SeCreatePagefilePrivilege	2760	winupdate.exe
Token: SeBackupPrivilege	2760	winupdate.exe
Token: SeRestorePrivilege	2760	winupdate.exe
Token: SeShutdownPrivilege	2760	winupdate.exe
Token: SeDebugPrivilege	2760	winupdate.exe
Token: SeSystemEnvironmentPrivilege	2760	winupdate.exe
Token: SeChangeNotifyPrivilege	2760	winupdate.exe
Token: SeRemoteShutdownPrivilege	2760	winupdate.exe
Token: SeUndockPrivilege	2760	winupdate.exe
Token: SeManageVolumePrivilege	2760	winupdate.exe
Token: SeImpersonatePrivilege	2760	winupdate.exe
Token: SeCreateGlobalPrivilege	2760	winupdate.exe
Token: 33	2760	winupdate.exe
Token: 34	2760	winupdate.exe
Token: 35	2760	winupdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

winupdate.exe

pid	Process
2760	winupdate.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1908 wrote to memory of 2760	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe	31
PID 1908 wrote to memory of 2760	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe	31
PID 1908 wrote to memory of 2760	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe	31
PID 1908 wrote to memory of 2760	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe	31
PID 1908 wrote to memory of 2760	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe	31
PID 1908 wrote to memory of 2760	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe	31
PID 1908 wrote to memory of 2760	1908	a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a00fb301627569c02a6049948edfa4f4_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1908
- C:\Windupdt\winupdate.exe
  "C:\Windupdt\winupdate.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Identifies Wine through registry keys
  - Loads dropped DLL
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2760

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

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Windupdt\winupdate.exe

Filesize
2.5MB

MD5
a00fb301627569c02a6049948edfa4f4

SHA1
876cd672502a32f935b3d74c0709c7ab18d007c0

SHA256
d067eb6f1e71610b17e8c2f04e4aabc5a8dcac2f45f0f1b7c2e513f8f0aeccef

SHA512
fa9778c1b0ef8881b0e6b0c05b48210873b8d329675c947560a23aa74391190e8fac82c379635312fc6a4c070c3f3ec53b82315b2bb0a3d9b3238f77e502fa0d

Download Submit
memory/1908-22-0x00000000058F0000-0x0000000005D77000-memory.dmp

Filesize
4.5MB

Download
memory/1908-1-0x0000000000401000-0x00000000004BC000-memory.dmp

Filesize
748KB

Download
memory/1908-2-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/1908-3-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/1908-6-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/1908-19-0x0000000000401000-0x00000000004BC000-memory.dmp

Filesize
748KB

Download
memory/1908-0-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-27-0x0000000000E00000-0x0000000001287000-memory.dmp

Filesize
4.5MB

Download
memory/2760-32-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-18-0x0000000000E00000-0x0000000001287000-memory.dmp

Filesize
4.5MB

Download
memory/2760-17-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-23-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-24-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-25-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-26-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-20-0x0000000000E00000-0x0000000001287000-memory.dmp

Filesize
4.5MB

Download
memory/2760-28-0x0000000000E00000-0x0000000001287000-memory.dmp

Filesize
4.5MB

Download
memory/2760-29-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-30-0x0000000000E00000-0x0000000001287000-memory.dmp

Filesize
4.5MB

Download
memory/2760-31-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-21-0x0000000000E00000-0x0000000001287000-memory.dmp

Filesize
4.5MB

Download
memory/2760-33-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-34-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-35-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-36-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-37-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-38-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-39-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-40-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-41-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-42-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-43-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-44-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download
memory/2760-45-0x0000000000400000-0x0000000000887000-memory.dmp

Filesize
4.5MB

Download