darkcomet | 183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f

Analysis

max time kernel
150s
max time network
136s
platform
windows7_x64
resource
win7v20210410
submitted
08-05-2021 22:32

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General

Target

183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
Size

1.9MB
MD5

b4dcd2d1d30d94db8313fff13fcec458
SHA1

bb77b06b84e44bbf191caaf93bf63928bcff9669
SHA256

183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f
SHA512

26cfe666dadc7473d46b2eac42de712a20559e56d5f071af3ffdacde183895983ce1b6f4cf922d50112f6e92aeb31c9ea8df101c1eeaeb6b0b67d8f775229a9f

Score

10^/10

darkcomet persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Executes dropped EXE 3 IoCs

Processes:

test.exetest.exetest.exe

pid process

1712 test.exe
612 test.exe
1516 test.exe

pid	process
1712	test.exe
612	test.exe
1516	test.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1968-75-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1968-70-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1516-107-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Loads dropped DLL 5 IoCs

Processes:

183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe

pid	process
1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\test\\test.exe"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exetest.exe

description	pid	process	target process
PID 788 set thread context of 1968	788	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
PID 1712 set thread context of 612	1712	test.exe	test.exe
PID 1712 set thread context of 1516	1712	test.exe	test.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

test.exetest.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1516	test.exe
Token: SeSecurityPrivilege	1516	test.exe
Token: SeTakeOwnershipPrivilege	1516	test.exe
Token: SeLoadDriverPrivilege	1516	test.exe
Token: SeSystemProfilePrivilege	1516	test.exe
Token: SeSystemtimePrivilege	1516	test.exe
Token: SeProfSingleProcessPrivilege	1516	test.exe
Token: SeIncBasePriorityPrivilege	1516	test.exe
Token: SeCreatePagefilePrivilege	1516	test.exe
Token: SeBackupPrivilege	1516	test.exe
Token: SeRestorePrivilege	1516	test.exe
Token: SeShutdownPrivilege	1516	test.exe
Token: SeDebugPrivilege	1516	test.exe
Token: SeSystemEnvironmentPrivilege	1516	test.exe
Token: SeChangeNotifyPrivilege	1516	test.exe
Token: SeRemoteShutdownPrivilege	1516	test.exe
Token: SeUndockPrivilege	1516	test.exe
Token: SeManageVolumePrivilege	1516	test.exe
Token: SeImpersonatePrivilege	1516	test.exe
Token: SeCreateGlobalPrivilege	1516	test.exe
Token: 33	1516	test.exe
Token: 34	1516	test.exe
Token: 35	1516	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe
Token: SeDebugPrivilege	612	test.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exetest.exetest.exe

pid	process
788	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
1712	test.exe
612	test.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.execmd.exetest.exe

description	pid	process	target process
PID 788 wrote to memory of 1968	788	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
PID 788 wrote to memory of 1968	788	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
PID 788 wrote to memory of 1968	788	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
PID 788 wrote to memory of 1968	788	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
PID 788 wrote to memory of 1968	788	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
PID 788 wrote to memory of 1968	788	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
PID 788 wrote to memory of 1968	788	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
PID 788 wrote to memory of 1968	788	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
PID 1968 wrote to memory of 604	1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	cmd.exe
PID 1968 wrote to memory of 604	1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	cmd.exe
PID 1968 wrote to memory of 604	1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	cmd.exe
PID 1968 wrote to memory of 604	1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	cmd.exe
PID 604 wrote to memory of 860	604	cmd.exe	reg.exe
PID 604 wrote to memory of 860	604	cmd.exe	reg.exe
PID 604 wrote to memory of 860	604	cmd.exe	reg.exe
PID 604 wrote to memory of 860	604	cmd.exe	reg.exe
PID 1968 wrote to memory of 1712	1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	test.exe
PID 1968 wrote to memory of 1712	1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	test.exe
PID 1968 wrote to memory of 1712	1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	test.exe
PID 1968 wrote to memory of 1712	1968	183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe	test.exe
PID 1712 wrote to memory of 612	1712	test.exe	test.exe
PID 1712 wrote to memory of 612	1712	test.exe	test.exe
PID 1712 wrote to memory of 612	1712	test.exe	test.exe
PID 1712 wrote to memory of 612	1712	test.exe	test.exe
PID 1712 wrote to memory of 612	1712	test.exe	test.exe
PID 1712 wrote to memory of 612	1712	test.exe	test.exe
PID 1712 wrote to memory of 612	1712	test.exe	test.exe
PID 1712 wrote to memory of 612	1712	test.exe	test.exe
PID 1712 wrote to memory of 1516	1712	test.exe	test.exe
PID 1712 wrote to memory of 1516	1712	test.exe	test.exe
PID 1712 wrote to memory of 1516	1712	test.exe	test.exe
PID 1712 wrote to memory of 1516	1712	test.exe	test.exe
PID 1712 wrote to memory of 1516	1712	test.exe	test.exe
PID 1712 wrote to memory of 1516	1712	test.exe	test.exe
PID 1712 wrote to memory of 1516	1712	test.exe	test.exe
PID 1712 wrote to memory of 1516	1712	test.exe	test.exe

C:\Users\Admin\AppData\Local\Temp\183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
"C:\Users\Admin\AppData\Local\Temp\183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:788
- C:\Users\Admin\AppData\Local\Temp\183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe
  "C:\Users\Admin\AppData\Local\Temp\183d7b9520584c2779641472fc9d98feb1a7b68f7a7a510cdc271a795311700f.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1968
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\BYGUT.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:604
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "svchost" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\test\test.exe" /f
      4⤵
      Adds Run key to start application
      PID:860
- - C:\Users\Admin\AppData\Roaming\test\test.exe
    "C:\Users\Admin\AppData\Roaming\test\test.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1712
  - - C:\Users\Admin\AppData\Roaming\test\test.exe
      "C:\Users\Admin\AppData\Roaming\test\test.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:612
  - - C:\Users\Admin\AppData\Roaming\test\test.exe
      "C:\Users\Admin\AppData\Roaming\test\test.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:1516

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

MD5
527683c48cc4c7190219814c77b72fe0

SHA1
d995878a8f4b9824a0508039eeada5376be9a52d

SHA256
bbebf3e66136e700d8e3e2e0c8f461cdd9d7e68fe5a18a235afe86344932fb4b

SHA512
408a53b240c23fa34153ccc2b2315f28a9741121ecc9b76d50267ee62d78230e65574327369f83c779c781802c0c28f6c578703c01a67de46c3d44f71b814fa6

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

MD5
1ccdc21516227cef30ff96038c187eb1

SHA1
82fe6678de707a17db12055108a6c39a7e459de3

SHA256
96e506f84b7f8e0a4a75f79f76ec84a815ddd6ccbb329b0769a7fc29de1aeccf

SHA512
4144bef1daf8eff48b1cdd4191acf01e235665e1db2ca1ba8d67f06a40f5a1574d19f52a16abae57c8a7d90649830f3776abcb157dbcb13981d9dc14b5a7f7ce

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

MD5
1ccdc21516227cef30ff96038c187eb1

SHA1
82fe6678de707a17db12055108a6c39a7e459de3

SHA256
96e506f84b7f8e0a4a75f79f76ec84a815ddd6ccbb329b0769a7fc29de1aeccf

SHA512
4144bef1daf8eff48b1cdd4191acf01e235665e1db2ca1ba8d67f06a40f5a1574d19f52a16abae57c8a7d90649830f3776abcb157dbcb13981d9dc14b5a7f7ce

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

MD5
1ccdc21516227cef30ff96038c187eb1

SHA1
82fe6678de707a17db12055108a6c39a7e459de3

SHA256
96e506f84b7f8e0a4a75f79f76ec84a815ddd6ccbb329b0769a7fc29de1aeccf

SHA512
4144bef1daf8eff48b1cdd4191acf01e235665e1db2ca1ba8d67f06a40f5a1574d19f52a16abae57c8a7d90649830f3776abcb157dbcb13981d9dc14b5a7f7ce

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

MD5
1ccdc21516227cef30ff96038c187eb1

SHA1
82fe6678de707a17db12055108a6c39a7e459de3

SHA256
96e506f84b7f8e0a4a75f79f76ec84a815ddd6ccbb329b0769a7fc29de1aeccf

SHA512
4144bef1daf8eff48b1cdd4191acf01e235665e1db2ca1ba8d67f06a40f5a1574d19f52a16abae57c8a7d90649830f3776abcb157dbcb13981d9dc14b5a7f7ce

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe

MD5
1ccdc21516227cef30ff96038c187eb1

SHA1
82fe6678de707a17db12055108a6c39a7e459de3

SHA256
96e506f84b7f8e0a4a75f79f76ec84a815ddd6ccbb329b0769a7fc29de1aeccf

SHA512
4144bef1daf8eff48b1cdd4191acf01e235665e1db2ca1ba8d67f06a40f5a1574d19f52a16abae57c8a7d90649830f3776abcb157dbcb13981d9dc14b5a7f7ce

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe

MD5
1ccdc21516227cef30ff96038c187eb1

SHA1
82fe6678de707a17db12055108a6c39a7e459de3

SHA256
96e506f84b7f8e0a4a75f79f76ec84a815ddd6ccbb329b0769a7fc29de1aeccf

SHA512
4144bef1daf8eff48b1cdd4191acf01e235665e1db2ca1ba8d67f06a40f5a1574d19f52a16abae57c8a7d90649830f3776abcb157dbcb13981d9dc14b5a7f7ce

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe

MD5
1ccdc21516227cef30ff96038c187eb1

SHA1
82fe6678de707a17db12055108a6c39a7e459de3

SHA256
96e506f84b7f8e0a4a75f79f76ec84a815ddd6ccbb329b0769a7fc29de1aeccf

SHA512
4144bef1daf8eff48b1cdd4191acf01e235665e1db2ca1ba8d67f06a40f5a1574d19f52a16abae57c8a7d90649830f3776abcb157dbcb13981d9dc14b5a7f7ce

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe

MD5
1ccdc21516227cef30ff96038c187eb1

SHA1
82fe6678de707a17db12055108a6c39a7e459de3

SHA256
96e506f84b7f8e0a4a75f79f76ec84a815ddd6ccbb329b0769a7fc29de1aeccf

SHA512
4144bef1daf8eff48b1cdd4191acf01e235665e1db2ca1ba8d67f06a40f5a1574d19f52a16abae57c8a7d90649830f3776abcb157dbcb13981d9dc14b5a7f7ce

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe

MD5
1ccdc21516227cef30ff96038c187eb1

SHA1
82fe6678de707a17db12055108a6c39a7e459de3

SHA256
96e506f84b7f8e0a4a75f79f76ec84a815ddd6ccbb329b0769a7fc29de1aeccf

SHA512
4144bef1daf8eff48b1cdd4191acf01e235665e1db2ca1ba8d67f06a40f5a1574d19f52a16abae57c8a7d90649830f3776abcb157dbcb13981d9dc14b5a7f7ce

Download Submit
memory/604-82-0x0000000000000000-mapping.dmp

Download
memory/612-105-0x00000000004085D0-mapping.dmp

Download
memory/788-69-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/788-71-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/788-74-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/788-72-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/788-62-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/788-78-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/788-76-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/788-77-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/788-63-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/788-65-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/788-68-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/788-67-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/788-59-0x0000000000400000-0x000000000054B000-memory.dmp

Filesize
1.3MB

Download
memory/788-66-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/860-84-0x0000000000000000-mapping.dmp

Download
memory/1516-108-0x00000000004B5640-mapping.dmp

Download
memory/1516-107-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1712-90-0x0000000000000000-mapping.dmp

Download
memory/1968-81-0x0000000075A71000-0x0000000075A73000-memory.dmp

Filesize
8KB

Download
memory/1968-70-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1968-75-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1968-73-0x00000000004085D0-mapping.dmp

Download