darkcomet | 7e66a26a7a2a2265ac8853903dc4c56a0a1a83c0de23ea9b54980f1858eb2789

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
04-12-2024 22:39

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General

Target

c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe
Size

589KB
MD5

c4b042271c25b19cc8b2d36a8e17ea44
SHA1

c9ce05f7b6efb1adec66b1e99eb09dedeae07475
SHA256

7e66a26a7a2a2265ac8853903dc4c56a0a1a83c0de23ea9b54980f1858eb2789
SHA512

b5c589aa5850ef0fa8c7e5e4dcf1a9e0ed12ee4130e09ddc6ede3e17018bff00fddf043f7a2871bd23a18f45bb62e4eb0aeb603d214ee9148f917e21a13fc5d5
SSDEEP

12288:9ffLtEIQIu7k5sscLsD5iZqHyscNExmj1NT5BzYQR8NxOz8Y5oSU:9fTOIQIu7k5DzvLxm5Bl8sk

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 1 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	mcsft.exe

Executes dropped EXE 3 IoCs

pid	Process
2836	mcsft.exe
2324	mcsft.exe
2380	mcsft.exe

Loads dropped DLL 7 IoCs

pid	Process
588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe
588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe
588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe
588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe
588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe
2836	mcsft.exe
2836	mcsft.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\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mcrosoft = "C:\\Users\\Admin\\AppData\\Roaming\\mcsft.exe"	reg.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2836 set thread context of 2324	2836	mcsft.exe	35
PID 2836 set thread context of 2380	2836	mcsft.exe	36

UPX packed file 36 IoCs

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

upx

resource	yara_rule
behavioral1/memory/588-0-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/files/0x00080000000186f1-27.dat	upx
behavioral1/memory/2836-47-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/588-49-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/2324-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-64-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2380-68-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2380-70-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2380-71-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2836-72-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/2380-73-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2324-76-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-77-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2380-79-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2324-80-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-84-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-88-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-90-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-92-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-94-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-96-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-98-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-100-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-102-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2324-104-0x0000000000400000-0x00000000004B5000-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 6 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	mcsft.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mcsft.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mcsft.exe

Checks processor information in registry 2 TTPs 4 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	mcsft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	mcsft.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	mcsft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	mcsft.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2324	mcsft.exe
Token: SeSecurityPrivilege	2324	mcsft.exe
Token: SeTakeOwnershipPrivilege	2324	mcsft.exe
Token: SeLoadDriverPrivilege	2324	mcsft.exe
Token: SeSystemProfilePrivilege	2324	mcsft.exe
Token: SeSystemtimePrivilege	2324	mcsft.exe
Token: SeProfSingleProcessPrivilege	2324	mcsft.exe
Token: SeIncBasePriorityPrivilege	2324	mcsft.exe
Token: SeCreatePagefilePrivilege	2324	mcsft.exe
Token: SeBackupPrivilege	2324	mcsft.exe
Token: SeRestorePrivilege	2324	mcsft.exe
Token: SeShutdownPrivilege	2324	mcsft.exe
Token: SeDebugPrivilege	2324	mcsft.exe
Token: SeSystemEnvironmentPrivilege	2324	mcsft.exe
Token: SeChangeNotifyPrivilege	2324	mcsft.exe
Token: SeRemoteShutdownPrivilege	2324	mcsft.exe
Token: SeUndockPrivilege	2324	mcsft.exe
Token: SeManageVolumePrivilege	2324	mcsft.exe
Token: SeImpersonatePrivilege	2324	mcsft.exe
Token: SeCreateGlobalPrivilege	2324	mcsft.exe
Token: 33	2324	mcsft.exe
Token: 34	2324	mcsft.exe
Token: 35	2324	mcsft.exe
Token: SeDebugPrivilege	2380	mcsft.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe
2836	mcsft.exe
2324	mcsft.exe
2380	mcsft.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 588 wrote to memory of 2632	588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe	31
PID 588 wrote to memory of 2632	588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe	31
PID 588 wrote to memory of 2632	588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe	31
PID 588 wrote to memory of 2632	588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe	31
PID 2632 wrote to memory of 2248	2632	cmd.exe	33
PID 2632 wrote to memory of 2248	2632	cmd.exe	33
PID 2632 wrote to memory of 2248	2632	cmd.exe	33
PID 2632 wrote to memory of 2248	2632	cmd.exe	33
PID 588 wrote to memory of 2836	588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe	34
PID 588 wrote to memory of 2836	588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe	34
PID 588 wrote to memory of 2836	588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe	34
PID 588 wrote to memory of 2836	588	c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe	34
PID 2836 wrote to memory of 2324	2836	mcsft.exe	35
PID 2836 wrote to memory of 2324	2836	mcsft.exe	35
PID 2836 wrote to memory of 2324	2836	mcsft.exe	35
PID 2836 wrote to memory of 2324	2836	mcsft.exe	35
PID 2836 wrote to memory of 2324	2836	mcsft.exe	35
PID 2836 wrote to memory of 2324	2836	mcsft.exe	35
PID 2836 wrote to memory of 2324	2836	mcsft.exe	35
PID 2836 wrote to memory of 2324	2836	mcsft.exe	35
PID 2836 wrote to memory of 2324	2836	mcsft.exe	35
PID 2836 wrote to memory of 2380	2836	mcsft.exe	36
PID 2836 wrote to memory of 2380	2836	mcsft.exe	36
PID 2836 wrote to memory of 2380	2836	mcsft.exe	36
PID 2836 wrote to memory of 2380	2836	mcsft.exe	36
PID 2836 wrote to memory of 2380	2836	mcsft.exe	36
PID 2836 wrote to memory of 2380	2836	mcsft.exe	36
PID 2836 wrote to memory of 2380	2836	mcsft.exe	36
PID 2836 wrote to memory of 2380	2836	mcsft.exe	36
PID 2836 wrote to memory of 2380	2836	mcsft.exe	36

C:\Users\Admin\AppData\Local\Temp\c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c4b042271c25b19cc8b2d36a8e17ea44_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:588
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\ZhFTr.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2632
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoft" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\mcsft.exe" /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2248
- C:\Users\Admin\AppData\Roaming\mcsft.exe
  "C:\Users\Admin\AppData\Roaming\mcsft.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Users\Admin\AppData\Roaming\mcsft.exe
    C:\Users\Admin\AppData\Roaming\mcsft.exe
    3⤵
    - Checks BIOS information in registry
    - Executes dropped EXE
    - 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:2324
- - C:\Users\Admin\AppData\Roaming\mcsft.exe
    C:\Users\Admin\AppData\Roaming\mcsft.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2380

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ZhFTr.bat

Filesize
135B

MD5
a5feca573884d76f559b996d45e8ad9a

SHA1
0e81a993f3af4e31d60653dc2513186f0495f1c8

SHA256
c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f

SHA512
a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda

Download Submit
C:\Users\Admin\AppData\Roaming\mcsft.exe

Filesize
589KB

MD5
30de3c7047ae9a4b2b09ce274694d725

SHA1
f3f2f3e443c1f96d35de3ee4bc67f49808ab01c5

SHA256
22e4e944f26ed972835f9713525d8b3651b29c13257b1ef5669e75b50440ae84

SHA512
6dd3dc65576a8ae1ab0632255a0fda6df46175abce13a705be56c048ba3ab48af2111b6aa3bfb5fd7ea030b0ba7152484fa400bfdd7370ac95dc874dabd72e79

Download Submit
memory/588-49-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/588-45-0x0000000003A30000-0x0000000003E1A000-memory.dmp

Filesize
3.9MB

Download
memory/588-42-0x0000000003A30000-0x0000000003E1A000-memory.dmp

Filesize
3.9MB

Download
memory/588-43-0x0000000003A30000-0x0000000003E1A000-memory.dmp

Filesize
3.9MB

Download
memory/588-44-0x0000000003A30000-0x0000000003E1A000-memory.dmp

Filesize
3.9MB

Download
memory/588-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2324-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-104-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-102-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-64-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-100-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-98-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-96-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-94-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-92-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-88-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2324-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2380-79-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2380-73-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2380-71-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2380-70-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2380-68-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2836-72-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2836-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2836-54-0x0000000002B60000-0x0000000002F4A000-memory.dmp

Filesize
3.9MB

Download
memory/2836-60-0x0000000002C60000-0x000000000304A000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads