darkcomet | ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93

Analysis

max time kernel
150s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
16-01-2025 23:01

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General

Target

ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe
Size

589KB
MD5

543c06eaf78e144afedc82cac633aa59
SHA1

bd78ac1bdf325325b40474a3a339aea4ccbe16ad
SHA256

ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93
SHA512

b573550201f9ea9ef2b6ad086df61e7fa9d782cca03d2d138d50f691b0520c856502cf3cecb26ca4f887f40458787db529f5c957f93d780a4fddc0be16981506
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
3064	mcsft.exe
2120	mcsft.exe
1784	mcsft.exe

Loads dropped DLL 5 IoCs

pid	Process
2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe
2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe
2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe
2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe
2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.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 3064 set thread context of 2120	3064	mcsft.exe	34
PID 3064 set thread context of 1784	3064	mcsft.exe	35

UPX packed file 37 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2860-0-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/files/0x002f000000018bd7-27.dat	upx
behavioral1/memory/2860-47-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/3064-49-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/1784-57-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1784-61-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/1784-65-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/3064-62-0x0000000000400000-0x00000000007EA000-memory.dmp	upx
behavioral1/memory/1784-60-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2120-56-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-55-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-53-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-66-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-67-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-69-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-72-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-71-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-70-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-68-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2860-73-0x00000000033F0000-0x00000000037DA000-memory.dmp	upx
behavioral1/memory/2120-74-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/1784-75-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral1/memory/2120-76-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-78-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-79-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-81-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-83-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-85-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-87-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-89-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-91-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-93-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-95-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-97-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-99-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-101-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral1/memory/2120-103-0x0000000000400000-0x00000000004B5000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.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: SeDebugPrivilege	1784	mcsft.exe
Token: SeIncreaseQuotaPrivilege	2120	mcsft.exe
Token: SeSecurityPrivilege	2120	mcsft.exe
Token: SeTakeOwnershipPrivilege	2120	mcsft.exe
Token: SeLoadDriverPrivilege	2120	mcsft.exe
Token: SeSystemProfilePrivilege	2120	mcsft.exe
Token: SeSystemtimePrivilege	2120	mcsft.exe
Token: SeProfSingleProcessPrivilege	2120	mcsft.exe
Token: SeIncBasePriorityPrivilege	2120	mcsft.exe
Token: SeCreatePagefilePrivilege	2120	mcsft.exe
Token: SeBackupPrivilege	2120	mcsft.exe
Token: SeRestorePrivilege	2120	mcsft.exe
Token: SeShutdownPrivilege	2120	mcsft.exe
Token: SeDebugPrivilege	2120	mcsft.exe
Token: SeSystemEnvironmentPrivilege	2120	mcsft.exe
Token: SeChangeNotifyPrivilege	2120	mcsft.exe
Token: SeRemoteShutdownPrivilege	2120	mcsft.exe
Token: SeUndockPrivilege	2120	mcsft.exe
Token: SeManageVolumePrivilege	2120	mcsft.exe
Token: SeImpersonatePrivilege	2120	mcsft.exe
Token: SeCreateGlobalPrivilege	2120	mcsft.exe
Token: 33	2120	mcsft.exe
Token: 34	2120	mcsft.exe
Token: 35	2120	mcsft.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe
3064	mcsft.exe
1784	mcsft.exe
2120	mcsft.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 3024	2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe	30
PID 2860 wrote to memory of 3024	2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe	30
PID 2860 wrote to memory of 3024	2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe	30
PID 2860 wrote to memory of 3024	2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe	30
PID 3024 wrote to memory of 2136	3024	cmd.exe	32
PID 3024 wrote to memory of 2136	3024	cmd.exe	32
PID 3024 wrote to memory of 2136	3024	cmd.exe	32
PID 3024 wrote to memory of 2136	3024	cmd.exe	32
PID 2860 wrote to memory of 3064	2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe	33
PID 2860 wrote to memory of 3064	2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe	33
PID 2860 wrote to memory of 3064	2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe	33
PID 2860 wrote to memory of 3064	2860	ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe	33
PID 3064 wrote to memory of 2120	3064	mcsft.exe	34
PID 3064 wrote to memory of 2120	3064	mcsft.exe	34
PID 3064 wrote to memory of 2120	3064	mcsft.exe	34
PID 3064 wrote to memory of 2120	3064	mcsft.exe	34
PID 3064 wrote to memory of 2120	3064	mcsft.exe	34
PID 3064 wrote to memory of 2120	3064	mcsft.exe	34
PID 3064 wrote to memory of 2120	3064	mcsft.exe	34
PID 3064 wrote to memory of 2120	3064	mcsft.exe	34
PID 3064 wrote to memory of 2120	3064	mcsft.exe	34
PID 3064 wrote to memory of 1784	3064	mcsft.exe	35
PID 3064 wrote to memory of 1784	3064	mcsft.exe	35
PID 3064 wrote to memory of 1784	3064	mcsft.exe	35
PID 3064 wrote to memory of 1784	3064	mcsft.exe	35
PID 3064 wrote to memory of 1784	3064	mcsft.exe	35
PID 3064 wrote to memory of 1784	3064	mcsft.exe	35
PID 3064 wrote to memory of 1784	3064	mcsft.exe	35
PID 3064 wrote to memory of 1784	3064	mcsft.exe	35
PID 3064 wrote to memory of 1784	3064	mcsft.exe	35

C:\Users\Admin\AppData\Local\Temp\ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe
"C:\Users\Admin\AppData\Local\Temp\ee993a553dd0eb37dd09742f94ac733283d381c3204cebd3385829a114c3fb93.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\bejVF.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3024
- - 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:2136
- 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:3064
- - 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:2120
- - 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:1784

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\bejVF.bat

Filesize
135B

MD5
a5feca573884d76f559b996d45e8ad9a

SHA1
0e81a993f3af4e31d60653dc2513186f0495f1c8

SHA256
c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f

SHA512
a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda

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

Filesize
589KB

MD5
8209bc78d307d5b382cb13c796ddc9a9

SHA1
4afb4e8c91538d938d972237ba8873da340fe434

SHA256
24dd3105923c34ef8ed9d083999992b4b470935fc37a7af698cb1cbeae8f4198

SHA512
1be249b16de489628b7149dd5abbcc76af043d37a4073259896a589dc31e0ff7596703c9e52b270283198d8e49cb2208d609ddbe25419c5236f2fc6ef2596a66

Download Submit
memory/1784-57-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1784-75-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1784-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1784-65-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1784-61-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2120-72-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-85-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-103-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-101-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-99-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-97-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-95-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-56-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-55-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-53-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-66-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-67-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-69-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-93-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-71-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-70-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-68-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-91-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-74-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-89-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-76-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-78-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-79-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-81-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-83-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2120-87-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2860-42-0x00000000033F0000-0x00000000037DA000-memory.dmp

Filesize
3.9MB

Download
memory/2860-43-0x00000000033F0000-0x00000000037DA000-memory.dmp

Filesize
3.9MB

Download
memory/2860-73-0x00000000033F0000-0x00000000037DA000-memory.dmp

Filesize
3.9MB

Download
memory/2860-0-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2860-47-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/2860-48-0x00000000033F0000-0x00000000037DA000-memory.dmp

Filesize
3.9MB

Download
memory/2860-46-0x00000000033F0000-0x00000000037DA000-memory.dmp

Filesize
3.9MB

Download
memory/3064-62-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download
memory/3064-49-0x0000000000400000-0x00000000007EA000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads