darkcomet | 3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2

Analysis

max time kernel
150s
max time network
125s
platform
windows7_x64
resource
win7v20210410
submitted
13-05-2021 15:27

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General

Target

3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
Size

1.9MB
MD5

b9c8a214a2d5f76056f475856ea214c6
SHA1

4682b1892f3f0ee13f0a2eb702e05fbb3e5d0af3
SHA256

3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2
SHA512

a98d561e8a4cd669096077171cbe8a0899799cc2cb9d7d54ac7ae0f529e757156f657aa5bd21e85fab3149fd6963b343a3b0a7a4af550b4300277374b9a33852

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

572 test.exe
1040 test.exe
1100 test.exe

pid	process
572	test.exe
1040	test.exe
1100	test.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1960-71-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1960-81-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1100-108-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1100-122-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Loads dropped DLL 5 IoCs

Processes:

3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe

pid	process
1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.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:

3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exetest.exe

description	pid	process	target process
PID 1860 set thread context of 1960	1860	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
PID 572 set thread context of 1040	572	test.exe	test.exe
PID 572 set thread context of 1100	572	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	1100	test.exe
Token: SeSecurityPrivilege	1100	test.exe
Token: SeTakeOwnershipPrivilege	1100	test.exe
Token: SeLoadDriverPrivilege	1100	test.exe
Token: SeSystemProfilePrivilege	1100	test.exe
Token: SeSystemtimePrivilege	1100	test.exe
Token: SeProfSingleProcessPrivilege	1100	test.exe
Token: SeIncBasePriorityPrivilege	1100	test.exe
Token: SeCreatePagefilePrivilege	1100	test.exe
Token: SeBackupPrivilege	1100	test.exe
Token: SeRestorePrivilege	1100	test.exe
Token: SeShutdownPrivilege	1100	test.exe
Token: SeDebugPrivilege	1100	test.exe
Token: SeSystemEnvironmentPrivilege	1100	test.exe
Token: SeChangeNotifyPrivilege	1100	test.exe
Token: SeRemoteShutdownPrivilege	1100	test.exe
Token: SeUndockPrivilege	1100	test.exe
Token: SeManageVolumePrivilege	1100	test.exe
Token: SeImpersonatePrivilege	1100	test.exe
Token: SeCreateGlobalPrivilege	1100	test.exe
Token: 33	1100	test.exe
Token: 34	1100	test.exe
Token: 35	1100	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe
Token: SeDebugPrivilege	1040	test.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exetest.exetest.exe

pid	process
1860	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
572	test.exe
1040	test.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.execmd.exetest.exe

description	pid	process	target process
PID 1860 wrote to memory of 1960	1860	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
PID 1860 wrote to memory of 1960	1860	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
PID 1860 wrote to memory of 1960	1860	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
PID 1860 wrote to memory of 1960	1860	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
PID 1860 wrote to memory of 1960	1860	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
PID 1860 wrote to memory of 1960	1860	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
PID 1860 wrote to memory of 1960	1860	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
PID 1860 wrote to memory of 1960	1860	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
PID 1960 wrote to memory of 1676	1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	cmd.exe
PID 1960 wrote to memory of 1676	1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	cmd.exe
PID 1960 wrote to memory of 1676	1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	cmd.exe
PID 1960 wrote to memory of 1676	1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	cmd.exe
PID 1676 wrote to memory of 1488	1676	cmd.exe	reg.exe
PID 1676 wrote to memory of 1488	1676	cmd.exe	reg.exe
PID 1676 wrote to memory of 1488	1676	cmd.exe	reg.exe
PID 1676 wrote to memory of 1488	1676	cmd.exe	reg.exe
PID 1960 wrote to memory of 572	1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	test.exe
PID 1960 wrote to memory of 572	1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	test.exe
PID 1960 wrote to memory of 572	1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	test.exe
PID 1960 wrote to memory of 572	1960	3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe	test.exe
PID 572 wrote to memory of 1040	572	test.exe	test.exe
PID 572 wrote to memory of 1040	572	test.exe	test.exe
PID 572 wrote to memory of 1040	572	test.exe	test.exe
PID 572 wrote to memory of 1040	572	test.exe	test.exe
PID 572 wrote to memory of 1040	572	test.exe	test.exe
PID 572 wrote to memory of 1040	572	test.exe	test.exe
PID 572 wrote to memory of 1040	572	test.exe	test.exe
PID 572 wrote to memory of 1040	572	test.exe	test.exe
PID 572 wrote to memory of 1100	572	test.exe	test.exe
PID 572 wrote to memory of 1100	572	test.exe	test.exe
PID 572 wrote to memory of 1100	572	test.exe	test.exe
PID 572 wrote to memory of 1100	572	test.exe	test.exe
PID 572 wrote to memory of 1100	572	test.exe	test.exe
PID 572 wrote to memory of 1100	572	test.exe	test.exe
PID 572 wrote to memory of 1100	572	test.exe	test.exe
PID 572 wrote to memory of 1100	572	test.exe	test.exe

C:\Users\Admin\AppData\Local\Temp\3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
"C:\Users\Admin\AppData\Local\Temp\3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1860

C:\Users\Admin\AppData\Local\Temp\3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe
"C:\Users\Admin\AppData\Local\Temp\3158c8b8248fe99ce5fc5c265cb3edf1957dee1508a7241d6c54acd283647ee2.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1960

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\USRVI.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:1676

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:1488

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:572

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:1040

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:1100

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\USRVI.bat
MD5
527683c48cc4c7190219814c77b72fe0

SHA1
d995878a8f4b9824a0508039eeada5376be9a52d

SHA256
bbebf3e66136e700d8e3e2e0c8f461cdd9d7e68fe5a18a235afe86344932fb4b

SHA512
408a53b240c23fa34153ccc2b2315f28a9741121ecc9b76d50267ee62d78230e65574327369f83c779c781802c0c28f6c578703c01a67de46c3d44f71b814fa6

Download Submit
C:\Users\Admin\AppData\Roaming\test\test.exe
MD5
a0487f8049b9be1f2cc0aa8dded1b164

SHA1
89617a611d267821ad1ba0c57f1a6d2aeb7a35e1

SHA256
37f6ca0ae7f82f17840b3e70934616d1d7eec3bd249f4030f5b22888c7ddaf36

SHA512
f9d57f719228d630b96f019c98d8c97e487ede17e6a589969c48a77296e9a921f4563c3adeb4f829c7c8e95be1d751e647141b6a0de274b78fa8e7ec5eaddffa

Download Submit
C:\Users\Admin\AppData\Roaming\test\test.exe
MD5
a0487f8049b9be1f2cc0aa8dded1b164

SHA1
89617a611d267821ad1ba0c57f1a6d2aeb7a35e1

SHA256
37f6ca0ae7f82f17840b3e70934616d1d7eec3bd249f4030f5b22888c7ddaf36

SHA512
f9d57f719228d630b96f019c98d8c97e487ede17e6a589969c48a77296e9a921f4563c3adeb4f829c7c8e95be1d751e647141b6a0de274b78fa8e7ec5eaddffa

Download Submit
C:\Users\Admin\AppData\Roaming\test\test.exe
MD5
a0487f8049b9be1f2cc0aa8dded1b164

SHA1
89617a611d267821ad1ba0c57f1a6d2aeb7a35e1

SHA256
37f6ca0ae7f82f17840b3e70934616d1d7eec3bd249f4030f5b22888c7ddaf36

SHA512
f9d57f719228d630b96f019c98d8c97e487ede17e6a589969c48a77296e9a921f4563c3adeb4f829c7c8e95be1d751e647141b6a0de274b78fa8e7ec5eaddffa

Download Submit
C:\Users\Admin\AppData\Roaming\test\test.exe
MD5
a0487f8049b9be1f2cc0aa8dded1b164

SHA1
89617a611d267821ad1ba0c57f1a6d2aeb7a35e1

SHA256
37f6ca0ae7f82f17840b3e70934616d1d7eec3bd249f4030f5b22888c7ddaf36

SHA512
f9d57f719228d630b96f019c98d8c97e487ede17e6a589969c48a77296e9a921f4563c3adeb4f829c7c8e95be1d751e647141b6a0de274b78fa8e7ec5eaddffa

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe
MD5
a0487f8049b9be1f2cc0aa8dded1b164

SHA1
89617a611d267821ad1ba0c57f1a6d2aeb7a35e1

SHA256
37f6ca0ae7f82f17840b3e70934616d1d7eec3bd249f4030f5b22888c7ddaf36

SHA512
f9d57f719228d630b96f019c98d8c97e487ede17e6a589969c48a77296e9a921f4563c3adeb4f829c7c8e95be1d751e647141b6a0de274b78fa8e7ec5eaddffa

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe
MD5
a0487f8049b9be1f2cc0aa8dded1b164

SHA1
89617a611d267821ad1ba0c57f1a6d2aeb7a35e1

SHA256
37f6ca0ae7f82f17840b3e70934616d1d7eec3bd249f4030f5b22888c7ddaf36

SHA512
f9d57f719228d630b96f019c98d8c97e487ede17e6a589969c48a77296e9a921f4563c3adeb4f829c7c8e95be1d751e647141b6a0de274b78fa8e7ec5eaddffa

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe
MD5
a0487f8049b9be1f2cc0aa8dded1b164

SHA1
89617a611d267821ad1ba0c57f1a6d2aeb7a35e1

SHA256
37f6ca0ae7f82f17840b3e70934616d1d7eec3bd249f4030f5b22888c7ddaf36

SHA512
f9d57f719228d630b96f019c98d8c97e487ede17e6a589969c48a77296e9a921f4563c3adeb4f829c7c8e95be1d751e647141b6a0de274b78fa8e7ec5eaddffa

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe
MD5
a0487f8049b9be1f2cc0aa8dded1b164

SHA1
89617a611d267821ad1ba0c57f1a6d2aeb7a35e1

SHA256
37f6ca0ae7f82f17840b3e70934616d1d7eec3bd249f4030f5b22888c7ddaf36

SHA512
f9d57f719228d630b96f019c98d8c97e487ede17e6a589969c48a77296e9a921f4563c3adeb4f829c7c8e95be1d751e647141b6a0de274b78fa8e7ec5eaddffa

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe
MD5
a0487f8049b9be1f2cc0aa8dded1b164

SHA1
89617a611d267821ad1ba0c57f1a6d2aeb7a35e1

SHA256
37f6ca0ae7f82f17840b3e70934616d1d7eec3bd249f4030f5b22888c7ddaf36

SHA512
f9d57f719228d630b96f019c98d8c97e487ede17e6a589969c48a77296e9a921f4563c3adeb4f829c7c8e95be1d751e647141b6a0de274b78fa8e7ec5eaddffa

Download Submit
memory/572-91-0x0000000000000000-mapping.dmp

Download
memory/1040-106-0x00000000004085D0-mapping.dmp

Download
memory/1100-108-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1100-111-0x00000000004B5640-mapping.dmp

Download
memory/1100-122-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1100-123-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1488-85-0x0000000000000000-mapping.dmp

Download
memory/1676-83-0x0000000000000000-mapping.dmp

Download
memory/1860-69-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1860-75-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1860-64-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1860-66-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1860-77-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/1860-78-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/1860-79-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1860-80-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1860-63-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1860-67-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1860-76-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1860-70-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1860-60-0x0000000000400000-0x000000000054B000-memory.dmp

Filesize
1.3MB

Download
memory/1860-68-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1960-82-0x0000000076A81000-0x0000000076A83000-memory.dmp

Filesize
8KB

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memory/1960-71-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

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memory/1960-72-0x00000000004085D0-mapping.dmp

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memory/1960-81-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

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