darkcomet | 405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f

Analysis

max time kernel
119s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
20-01-2025 08:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe
Size

589KB
MD5

0c194c4834b84313e1ce33a2986e7cd9
SHA1

412803ab8067ca9013bed7996a39397063484e1d
SHA256

405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f
SHA512

feb4470e16c47e09bb0fde741e861368d17e366f205a275fc506c88510b61dc5c2e8d31df45fd0e5c3c58a36d5184f61f2032050e557cf9920c34a37bc6757a3
SSDEEP

12288:9ffLtEIQIu7k5sscLsD5iZqHyscNExmj1NT5BzYQR8NxOz8Y5oSF:9fTOIQIu7k5DzvLxm5Bl8s1

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
2796	mcsft.exe
2816	mcsft.exe
2352	mcsft.exe

Loads dropped DLL 5 IoCs

pid	Process
2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe
2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe
2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe
2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe
2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.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-1-5-21-3692679935-4019334568-335155002-1000\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 2796 set thread context of 2816	2796	mcsft.exe	34
PID 2796 set thread context of 2352	2796	mcsft.exe	35

UPX packed file 32 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2004-0-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/files/0x002f000000018bd7-27.dat	upx
behavioral1/memory/2796-47-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/2004-46-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/2816-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2796-60-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/2816-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2352-64-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2816-63-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2352-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2352-56-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2352-54-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2816-65-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2352-72-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2816-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-75-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-77-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-81-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-85-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-89-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2816-93-0x0000000000400000-0x00000000004B5000-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	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mcsft.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\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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	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: SeDebugPrivilege	2352	mcsft.exe
Token: SeIncreaseQuotaPrivilege	2816	mcsft.exe
Token: SeSecurityPrivilege	2816	mcsft.exe
Token: SeTakeOwnershipPrivilege	2816	mcsft.exe
Token: SeLoadDriverPrivilege	2816	mcsft.exe
Token: SeSystemProfilePrivilege	2816	mcsft.exe
Token: SeSystemtimePrivilege	2816	mcsft.exe
Token: SeProfSingleProcessPrivilege	2816	mcsft.exe
Token: SeIncBasePriorityPrivilege	2816	mcsft.exe
Token: SeCreatePagefilePrivilege	2816	mcsft.exe
Token: SeBackupPrivilege	2816	mcsft.exe
Token: SeRestorePrivilege	2816	mcsft.exe
Token: SeShutdownPrivilege	2816	mcsft.exe
Token: SeDebugPrivilege	2816	mcsft.exe
Token: SeSystemEnvironmentPrivilege	2816	mcsft.exe
Token: SeChangeNotifyPrivilege	2816	mcsft.exe
Token: SeRemoteShutdownPrivilege	2816	mcsft.exe
Token: SeUndockPrivilege	2816	mcsft.exe
Token: SeManageVolumePrivilege	2816	mcsft.exe
Token: SeImpersonatePrivilege	2816	mcsft.exe
Token: SeCreateGlobalPrivilege	2816	mcsft.exe
Token: 33	2816	mcsft.exe
Token: 34	2816	mcsft.exe
Token: 35	2816	mcsft.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe
2796	mcsft.exe
2352	mcsft.exe
2816	mcsft.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2536	2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe	30
PID 2004 wrote to memory of 2536	2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe	30
PID 2004 wrote to memory of 2536	2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe	30
PID 2004 wrote to memory of 2536	2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe	30
PID 2536 wrote to memory of 2880	2536	cmd.exe	32
PID 2536 wrote to memory of 2880	2536	cmd.exe	32
PID 2536 wrote to memory of 2880	2536	cmd.exe	32
PID 2536 wrote to memory of 2880	2536	cmd.exe	32
PID 2004 wrote to memory of 2796	2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe	33
PID 2004 wrote to memory of 2796	2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe	33
PID 2004 wrote to memory of 2796	2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe	33
PID 2004 wrote to memory of 2796	2004	405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe	33
PID 2796 wrote to memory of 2816	2796	mcsft.exe	34
PID 2796 wrote to memory of 2816	2796	mcsft.exe	34
PID 2796 wrote to memory of 2816	2796	mcsft.exe	34
PID 2796 wrote to memory of 2816	2796	mcsft.exe	34
PID 2796 wrote to memory of 2816	2796	mcsft.exe	34
PID 2796 wrote to memory of 2816	2796	mcsft.exe	34
PID 2796 wrote to memory of 2816	2796	mcsft.exe	34
PID 2796 wrote to memory of 2816	2796	mcsft.exe	34
PID 2796 wrote to memory of 2816	2796	mcsft.exe	34
PID 2796 wrote to memory of 2352	2796	mcsft.exe	35
PID 2796 wrote to memory of 2352	2796	mcsft.exe	35
PID 2796 wrote to memory of 2352	2796	mcsft.exe	35
PID 2796 wrote to memory of 2352	2796	mcsft.exe	35
PID 2796 wrote to memory of 2352	2796	mcsft.exe	35
PID 2796 wrote to memory of 2352	2796	mcsft.exe	35
PID 2796 wrote to memory of 2352	2796	mcsft.exe	35
PID 2796 wrote to memory of 2352	2796	mcsft.exe	35
PID 2796 wrote to memory of 2352	2796	mcsft.exe	35

C:\Users\Admin\AppData\Local\Temp\405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe
"C:\Users\Admin\AppData\Local\Temp\405cf25a2c9d211540119f3ea43845f1e56b0f19950d9f056b7f6f55376c270f.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\kqFsp.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2536
- - 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:2880
- C:\Users\Admin\AppData\Roaming\mcsft.exe
  "C:\Users\Admin\AppData\Roaming\mcsft.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2796
- - 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:2816
- - 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:2352

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

Loading Replay Monitor...

Downloads

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

Filesize
135B

MD5
a5feca573884d76f559b996d45e8ad9a

SHA1
0e81a993f3af4e31d60653dc2513186f0495f1c8

SHA256
c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f

SHA512
a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda

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

Filesize
589KB

MD5
9a2dd0342d08fb05cd0b9443bc0e6686

SHA1
dac22b412fa133125c4a94af5264e42fcf0e981c

SHA256
d6d147434ff8bbdc3308693a2b841774bad885ff9618a078f95ee7558ea4fd05

SHA512
5f568f26a74a2854fbc65676d3fcbf1f083ae86457bd9de048c7445d67d0104ee5bacefe04fd4586410d847c574a1aee0d4a4c464481fccca0f0e4f11a639231

Download Submit
memory/2004-46-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2004-42-0x0000000003240000-0x000000000362A000-memory.dmp

Filesize
3.9MB

Download
memory/2004-44-0x0000000003240000-0x000000000362A000-memory.dmp

Filesize
3.9MB

Download
memory/2004-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2352-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2352-72-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2352-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2352-64-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2352-56-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2796-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2796-60-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2816-65-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-63-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-75-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-77-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-85-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-89-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2816-93-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads