darkcomet | 125aa1a042a5b5fd47979b612930348bfd2bc03cc8a7198535a576439a78a0c2

Analysis

max time kernel
149s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
10-12-2024 19:20

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General

Target

de4827e4879fc14a65133478895bf742_JaffaCakes118.exe
Size

766KB
MD5

de4827e4879fc14a65133478895bf742
SHA1

38ca0f794976147b3cb56e5bddebe292ce3b11c9
SHA256

125aa1a042a5b5fd47979b612930348bfd2bc03cc8a7198535a576439a78a0c2
SHA512

4bca18d80bcf8b8c946d3d8878b3e3a1c2725c20c41d51b38c138255810eaa329b2968c561cc3efca0a0dc063a646c53ab4b580f27c2d8b50320bb44e4abf90e
SSDEEP

12288:/Muo3R2vENhB8JnOA2IVyhXF132N1eNSVUt29MW2SdKO8VdsJkl7+G07FKH83bqM:/lo3R2vcB8JOAg1gNAgOI912SgZVdsJB

Score

10^/10

darkcomet discovery persistence rat trojan upx

Malware Config

Signatures

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

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	server.exe.exe

Executes dropped EXE 2 IoCs

pid	Process
2844	JavaLoader.exe
2348	server.exe.exe

Loads dropped DLL 3 IoCs

pid	Process
2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe
2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe
2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\JavaLoader = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tempalbert\\JavaLoader.exe"	JavaLoader.exe

AutoIT Executable 7 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2844-28-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe
behavioral1/memory/2844-29-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe
behavioral1/memory/2844-30-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe
behavioral1/memory/2844-31-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe
behavioral1/memory/2844-35-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe
behavioral1/memory/2844-38-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe
behavioral1/memory/2844-41-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2348 set thread context of 2816	2348	server.exe.exe	31

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000016ae9-3.dat	upx
behavioral1/memory/2420-7-0x0000000003B10000-0x0000000003BD1000-memory.dmp	upx
behavioral1/memory/2844-16-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral1/memory/2844-28-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral1/memory/2844-29-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral1/memory/2844-30-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral1/memory/2844-31-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral1/memory/2844-35-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral1/memory/2844-38-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral1/memory/2844-41-0x0000000000400000-0x00000000004C1000-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 4 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	JavaLoader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	de4827e4879fc14a65133478895bf742_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

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

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	server.exe.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2844	JavaLoader.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2348	server.exe.exe
Token: SeSecurityPrivilege	2348	server.exe.exe
Token: SeTakeOwnershipPrivilege	2348	server.exe.exe
Token: SeLoadDriverPrivilege	2348	server.exe.exe
Token: SeSystemProfilePrivilege	2348	server.exe.exe
Token: SeSystemtimePrivilege	2348	server.exe.exe
Token: SeProfSingleProcessPrivilege	2348	server.exe.exe
Token: SeIncBasePriorityPrivilege	2348	server.exe.exe
Token: SeCreatePagefilePrivilege	2348	server.exe.exe
Token: SeBackupPrivilege	2348	server.exe.exe
Token: SeRestorePrivilege	2348	server.exe.exe
Token: SeShutdownPrivilege	2348	server.exe.exe
Token: SeDebugPrivilege	2348	server.exe.exe
Token: SeSystemEnvironmentPrivilege	2348	server.exe.exe
Token: SeChangeNotifyPrivilege	2348	server.exe.exe
Token: SeRemoteShutdownPrivilege	2348	server.exe.exe
Token: SeUndockPrivilege	2348	server.exe.exe
Token: SeManageVolumePrivilege	2348	server.exe.exe
Token: SeImpersonatePrivilege	2348	server.exe.exe
Token: SeCreateGlobalPrivilege	2348	server.exe.exe
Token: 33	2348	server.exe.exe
Token: 34	2348	server.exe.exe
Token: 35	2348	server.exe.exe
Token: SeIncreaseQuotaPrivilege	2816	explorer.exe
Token: SeSecurityPrivilege	2816	explorer.exe
Token: SeTakeOwnershipPrivilege	2816	explorer.exe
Token: SeLoadDriverPrivilege	2816	explorer.exe
Token: SeSystemProfilePrivilege	2816	explorer.exe
Token: SeSystemtimePrivilege	2816	explorer.exe
Token: SeProfSingleProcessPrivilege	2816	explorer.exe
Token: SeIncBasePriorityPrivilege	2816	explorer.exe
Token: SeCreatePagefilePrivilege	2816	explorer.exe
Token: SeBackupPrivilege	2816	explorer.exe
Token: SeRestorePrivilege	2816	explorer.exe
Token: SeShutdownPrivilege	2816	explorer.exe
Token: SeDebugPrivilege	2816	explorer.exe
Token: SeSystemEnvironmentPrivilege	2816	explorer.exe
Token: SeChangeNotifyPrivilege	2816	explorer.exe
Token: SeRemoteShutdownPrivilege	2816	explorer.exe
Token: SeUndockPrivilege	2816	explorer.exe
Token: SeManageVolumePrivilege	2816	explorer.exe
Token: SeImpersonatePrivilege	2816	explorer.exe
Token: SeCreateGlobalPrivilege	2816	explorer.exe
Token: 33	2816	explorer.exe
Token: 34	2816	explorer.exe
Token: 35	2816	explorer.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe
2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe
2816	explorer.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2844	2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe	29
PID 2420 wrote to memory of 2844	2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe	29
PID 2420 wrote to memory of 2844	2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe	29
PID 2420 wrote to memory of 2844	2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe	29
PID 2420 wrote to memory of 2348	2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe	30
PID 2420 wrote to memory of 2348	2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe	30
PID 2420 wrote to memory of 2348	2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe	30
PID 2420 wrote to memory of 2348	2420	de4827e4879fc14a65133478895bf742_JaffaCakes118.exe	30
PID 2348 wrote to memory of 2816	2348	server.exe.exe	31
PID 2348 wrote to memory of 2816	2348	server.exe.exe	31
PID 2348 wrote to memory of 2816	2348	server.exe.exe	31
PID 2348 wrote to memory of 2816	2348	server.exe.exe	31
PID 2348 wrote to memory of 2816	2348	server.exe.exe	31
PID 2348 wrote to memory of 2816	2348	server.exe.exe	31

C:\Users\Admin\AppData\Local\Temp\de4827e4879fc14a65133478895bf742_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\de4827e4879fc14a65133478895bf742_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Users\Admin\AppData\Local\Temp\tempalbert\JavaLoader.exe
  "C:\Users\Admin\AppData\Local\Temp\tempalbert\JavaLoader.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2844
- C:\Users\Admin\AppData\Local\Temp\tempalbert\server.exe.exe
  "C:\Users\Admin\AppData\Local\Temp\tempalbert\server.exe.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2348
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    - Checks BIOS information in registry
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2816

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

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\tempalbert\server.exe.exe

Filesize
689KB

MD5
f181ed8dd601359cff4dcd71b2a6cc9d

SHA1
9b5a92fb3f2d94c0d04e75d89d22d22735917a27

SHA256
3347899c9d721adda6a5f8fcd2ce5e359bce11a981d86abc2c29b64dc11ac3a2

SHA512
f440afd187e05952f758584febc731dc420acb66e7eddb8fe6d40d8ffacdd376b2e56314fab4195f9401bfb70bf1a10fa726f2aa12a1bef29e925c70222467be

Download Submit
\Users\Admin\AppData\Local\Temp\tempalbert\JavaLoader.exe

Filesize
374KB

MD5
0e51f8e356ed9c7a511bf905c68d505d

SHA1
32d3943307dadd37d4e7814ca338153ed445bde7

SHA256
29917695214d5c69e2e26ceb28242b38f4ebd93370b7e00acf2aaebb5c23094f

SHA512
ee817ccb13b8a4dcf609f89529f4790d3357cd764fefc228d3d7262c0d366b3a49f3a3ec09d0dc4e6debebdf402f95181b661d1ed196b501b9ae6e78dddac042

Download Submit
memory/2348-24-0x0000000013140000-0x00000000131FE000-memory.dmp

Filesize
760KB

Download
memory/2420-7-0x0000000003B10000-0x0000000003BD1000-memory.dmp

Filesize
772KB

Download
memory/2816-22-0x0000000013140000-0x00000000131FE000-memory.dmp

Filesize
760KB

Download
memory/2816-25-0x0000000013140000-0x00000000131FE000-memory.dmp

Filesize
760KB

Download
memory/2816-19-0x0000000013140000-0x00000000131FE000-memory.dmp

Filesize
760KB

Download
memory/2816-23-0x0000000013140000-0x00000000131FE000-memory.dmp

Filesize
760KB

Download
memory/2816-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2816-27-0x0000000013140000-0x00000000131FE000-memory.dmp

Filesize
760KB

Download
memory/2816-26-0x0000000013140000-0x00000000131FE000-memory.dmp

Filesize
760KB

Download
memory/2844-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2844-28-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2844-29-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2844-30-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2844-31-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2844-35-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2844-38-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2844-41-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download