darkcomet | 4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 22:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe
Size

589KB
MD5

d3897ba54f556a71936e1028c40e092c
SHA1

4c2ffb75cea1c906eaff076406c4e917f21fd459
SHA256

4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d
SHA512

c8a20733d173fdce060b3baad8ee035b5cf1fee7a63ad6fb8cdb7f7bf5db3a50e12e17322581196e1b294bbb751c9cdeca6a1624f660bcae1d131cf938e106f0
SSDEEP

12288:9ffLtEIQIu7k5sscLsD5iZqHyscNExmj1NT5BzYQR8NxOz8Y5oSX:9fTOIQIu7k5DzvLxm5Bl8sH

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
3048	mcsft.exe
2876	mcsft.exe
2748	mcsft.exe

Loads dropped DLL 5 IoCs

pid	Process
2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe
2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe
2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe
2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe
2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.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 3048 set thread context of 2876	3048	mcsft.exe	34
PID 3048 set thread context of 2748	3048	mcsft.exe	35

UPX packed file 35 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2312-0-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/files/0x0009000000016875-27.dat	upx
behavioral1/memory/2312-48-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/3048-46-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/2876-54-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-57-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-58-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-59-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-62-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-61-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-60-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2748-63-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2748-66-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2748-67-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/3048-68-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/2876-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2748-75-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2876-73-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-76-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-80-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-82-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-84-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-86-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-88-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-90-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-92-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-94-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-96-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-98-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2876-100-0x0000000000400000-0x00000000004B5000-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	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.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: SeIncreaseQuotaPrivilege	2876	mcsft.exe
Token: SeSecurityPrivilege	2876	mcsft.exe
Token: SeTakeOwnershipPrivilege	2876	mcsft.exe
Token: SeLoadDriverPrivilege	2876	mcsft.exe
Token: SeSystemProfilePrivilege	2876	mcsft.exe
Token: SeSystemtimePrivilege	2876	mcsft.exe
Token: SeProfSingleProcessPrivilege	2876	mcsft.exe
Token: SeIncBasePriorityPrivilege	2876	mcsft.exe
Token: SeCreatePagefilePrivilege	2876	mcsft.exe
Token: SeBackupPrivilege	2876	mcsft.exe
Token: SeRestorePrivilege	2876	mcsft.exe
Token: SeShutdownPrivilege	2876	mcsft.exe
Token: SeDebugPrivilege	2876	mcsft.exe
Token: SeSystemEnvironmentPrivilege	2876	mcsft.exe
Token: SeChangeNotifyPrivilege	2876	mcsft.exe
Token: SeRemoteShutdownPrivilege	2876	mcsft.exe
Token: SeUndockPrivilege	2876	mcsft.exe
Token: SeManageVolumePrivilege	2876	mcsft.exe
Token: SeImpersonatePrivilege	2876	mcsft.exe
Token: SeCreateGlobalPrivilege	2876	mcsft.exe
Token: 33	2876	mcsft.exe
Token: 34	2876	mcsft.exe
Token: 35	2876	mcsft.exe
Token: SeDebugPrivilege	2748	mcsft.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe
3048	mcsft.exe
2876	mcsft.exe
2748	mcsft.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 296	2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe	30
PID 2312 wrote to memory of 296	2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe	30
PID 2312 wrote to memory of 296	2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe	30
PID 2312 wrote to memory of 296	2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe	30
PID 296 wrote to memory of 1316	296	cmd.exe	32
PID 296 wrote to memory of 1316	296	cmd.exe	32
PID 296 wrote to memory of 1316	296	cmd.exe	32
PID 296 wrote to memory of 1316	296	cmd.exe	32
PID 2312 wrote to memory of 3048	2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe	33
PID 2312 wrote to memory of 3048	2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe	33
PID 2312 wrote to memory of 3048	2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe	33
PID 2312 wrote to memory of 3048	2312	4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe	33
PID 3048 wrote to memory of 2876	3048	mcsft.exe	34
PID 3048 wrote to memory of 2876	3048	mcsft.exe	34
PID 3048 wrote to memory of 2876	3048	mcsft.exe	34
PID 3048 wrote to memory of 2876	3048	mcsft.exe	34
PID 3048 wrote to memory of 2876	3048	mcsft.exe	34
PID 3048 wrote to memory of 2876	3048	mcsft.exe	34
PID 3048 wrote to memory of 2876	3048	mcsft.exe	34
PID 3048 wrote to memory of 2876	3048	mcsft.exe	34
PID 3048 wrote to memory of 2876	3048	mcsft.exe	34
PID 3048 wrote to memory of 2748	3048	mcsft.exe	35
PID 3048 wrote to memory of 2748	3048	mcsft.exe	35
PID 3048 wrote to memory of 2748	3048	mcsft.exe	35
PID 3048 wrote to memory of 2748	3048	mcsft.exe	35
PID 3048 wrote to memory of 2748	3048	mcsft.exe	35
PID 3048 wrote to memory of 2748	3048	mcsft.exe	35
PID 3048 wrote to memory of 2748	3048	mcsft.exe	35
PID 3048 wrote to memory of 2748	3048	mcsft.exe	35
PID 3048 wrote to memory of 2748	3048	mcsft.exe	35

C:\Users\Admin\AppData\Local\Temp\4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe
"C:\Users\Admin\AppData\Local\Temp\4f26e70c7e309f54cb1b41511a649c04969d34048154278fe63749951edfbd7d.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\sAyqZ.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:296
- - 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:1316
- 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:3048
- - 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:2876
- - 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:2748

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\sAyqZ.bat

Filesize
135B

MD5
a5feca573884d76f559b996d45e8ad9a

SHA1
0e81a993f3af4e31d60653dc2513186f0495f1c8

SHA256
c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f

SHA512
a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda

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

Filesize
589KB

MD5
150591cac53afbb25d559a79c58da945

SHA1
181240252e9c5be6f56e9842d81de59547d56c5c

SHA256
8b37c6c5a6be060c668967583531e37bcf49fe7a606934218403c4cfcd67fa40

SHA512
11661468532399e37ce96c2caed71688ce25ce683b2775bfa03a26d5dfacb86629e7e40708bd8f4139484623ca47c712104e3ee48e19e7ffa2b0ed57a069de02

Download Submit
memory/2312-42-0x0000000003A40000-0x0000000003E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2312-44-0x0000000003A40000-0x0000000003E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2312-48-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2312-43-0x0000000003A40000-0x0000000003E2A000-memory.dmp

Filesize
3.9MB

Download
memory/2312-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2748-63-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2748-75-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2748-67-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2748-66-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2876-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-58-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-59-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-62-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-61-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-60-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-54-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-100-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-98-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-73-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-80-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-82-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-57-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-86-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-88-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-90-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-92-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-94-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2876-96-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3048-46-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/3048-68-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads