darkcomet | ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7v20210410
submitted
15-05-2021 04:44

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General

Target

ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
Size

1.9MB
MD5

ba3851b7a3b93b34ab082dd184b01969
SHA1

04a9cf0d8a973c9de96dae6fd830f9780512424d
SHA256

ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1
SHA512

4765f079e434990360f34c3bf8c90d9e48ba0ff988a3a2d2edacf30085eb6a8ce10af3677d199a5830bd80278965674afac15e79438872946d2213268324e121

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

328 test.exe
932 test.exe
1540 test.exe

pid	process
328	test.exe
932	test.exe
1540	test.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1168-71-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1168-75-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1540-113-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1540-121-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Loads dropped DLL 5 IoCs

Processes:

ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe

pid	process
1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.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:

ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exetest.exe

description	pid	process	target process
PID 1688 set thread context of 1168	1688	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
PID 328 set thread context of 932	328	test.exe	test.exe
PID 328 set thread context of 1540	328	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	1540	test.exe
Token: SeSecurityPrivilege	1540	test.exe
Token: SeTakeOwnershipPrivilege	1540	test.exe
Token: SeLoadDriverPrivilege	1540	test.exe
Token: SeSystemProfilePrivilege	1540	test.exe
Token: SeSystemtimePrivilege	1540	test.exe
Token: SeProfSingleProcessPrivilege	1540	test.exe
Token: SeIncBasePriorityPrivilege	1540	test.exe
Token: SeCreatePagefilePrivilege	1540	test.exe
Token: SeBackupPrivilege	1540	test.exe
Token: SeRestorePrivilege	1540	test.exe
Token: SeShutdownPrivilege	1540	test.exe
Token: SeDebugPrivilege	1540	test.exe
Token: SeSystemEnvironmentPrivilege	1540	test.exe
Token: SeChangeNotifyPrivilege	1540	test.exe
Token: SeRemoteShutdownPrivilege	1540	test.exe
Token: SeUndockPrivilege	1540	test.exe
Token: SeManageVolumePrivilege	1540	test.exe
Token: SeImpersonatePrivilege	1540	test.exe
Token: SeCreateGlobalPrivilege	1540	test.exe
Token: 33	1540	test.exe
Token: 34	1540	test.exe
Token: 35	1540	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe
Token: SeDebugPrivilege	932	test.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exeac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exetest.exetest.exe

pid	process
1688	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
328	test.exe
932	test.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exeac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.execmd.exetest.exe

description	pid	process	target process
PID 1688 wrote to memory of 1168	1688	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
PID 1688 wrote to memory of 1168	1688	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
PID 1688 wrote to memory of 1168	1688	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
PID 1688 wrote to memory of 1168	1688	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
PID 1688 wrote to memory of 1168	1688	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
PID 1688 wrote to memory of 1168	1688	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
PID 1688 wrote to memory of 1168	1688	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
PID 1688 wrote to memory of 1168	1688	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
PID 1168 wrote to memory of 1552	1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	cmd.exe
PID 1168 wrote to memory of 1552	1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	cmd.exe
PID 1168 wrote to memory of 1552	1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	cmd.exe
PID 1168 wrote to memory of 1552	1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	cmd.exe
PID 1552 wrote to memory of 1236	1552	cmd.exe	reg.exe
PID 1552 wrote to memory of 1236	1552	cmd.exe	reg.exe
PID 1552 wrote to memory of 1236	1552	cmd.exe	reg.exe
PID 1552 wrote to memory of 1236	1552	cmd.exe	reg.exe
PID 1168 wrote to memory of 328	1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	test.exe
PID 1168 wrote to memory of 328	1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	test.exe
PID 1168 wrote to memory of 328	1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	test.exe
PID 1168 wrote to memory of 328	1168	ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe	test.exe
PID 328 wrote to memory of 932	328	test.exe	test.exe
PID 328 wrote to memory of 932	328	test.exe	test.exe
PID 328 wrote to memory of 932	328	test.exe	test.exe
PID 328 wrote to memory of 932	328	test.exe	test.exe
PID 328 wrote to memory of 932	328	test.exe	test.exe
PID 328 wrote to memory of 932	328	test.exe	test.exe
PID 328 wrote to memory of 932	328	test.exe	test.exe
PID 328 wrote to memory of 932	328	test.exe	test.exe
PID 328 wrote to memory of 1540	328	test.exe	test.exe
PID 328 wrote to memory of 1540	328	test.exe	test.exe
PID 328 wrote to memory of 1540	328	test.exe	test.exe
PID 328 wrote to memory of 1540	328	test.exe	test.exe
PID 328 wrote to memory of 1540	328	test.exe	test.exe
PID 328 wrote to memory of 1540	328	test.exe	test.exe
PID 328 wrote to memory of 1540	328	test.exe	test.exe
PID 328 wrote to memory of 1540	328	test.exe	test.exe

C:\Users\Admin\AppData\Local\Temp\ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
"C:\Users\Admin\AppData\Local\Temp\ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1688

C:\Users\Admin\AppData\Local\Temp\ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe
"C:\Users\Admin\AppData\Local\Temp\ac7730946cebdf5ebf972d73356681662f2058d9a71517ff74e2a986276272f1.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1168

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\HMEVM.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:1552

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:1236

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:328

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:932

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:1540

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\HMEVM.bat
MD5
527683c48cc4c7190219814c77b72fe0

SHA1
d995878a8f4b9824a0508039eeada5376be9a52d

SHA256
bbebf3e66136e700d8e3e2e0c8f461cdd9d7e68fe5a18a235afe86344932fb4b

SHA512
408a53b240c23fa34153ccc2b2315f28a9741121ecc9b76d50267ee62d78230e65574327369f83c779c781802c0c28f6c578703c01a67de46c3d44f71b814fa6

Download Submit
C:\Users\Admin\AppData\Roaming\test\test.exe
MD5
94d9b42c1466920403dcae7693fee217

SHA1
e395526bee14ecc603fa46d8f53c338793c4eeb4

SHA256
70c8f5e1e32900b1c913d80905977f6134f29a77ba4cb231175401ab33e5b92b

SHA512
248cbc9be0a4fe07f0ef3bdb40ea36d35543dbc0682ef7cab664df48655952545d091c4514175a9fd8fed5d9e161592de8c1da6ec974712d223c71e422b2e5a6

Download Submit
C:\Users\Admin\AppData\Roaming\test\test.exe
MD5
94d9b42c1466920403dcae7693fee217

SHA1
e395526bee14ecc603fa46d8f53c338793c4eeb4

SHA256
70c8f5e1e32900b1c913d80905977f6134f29a77ba4cb231175401ab33e5b92b

SHA512
248cbc9be0a4fe07f0ef3bdb40ea36d35543dbc0682ef7cab664df48655952545d091c4514175a9fd8fed5d9e161592de8c1da6ec974712d223c71e422b2e5a6

Download Submit
C:\Users\Admin\AppData\Roaming\test\test.exe
MD5
94d9b42c1466920403dcae7693fee217

SHA1
e395526bee14ecc603fa46d8f53c338793c4eeb4

SHA256
70c8f5e1e32900b1c913d80905977f6134f29a77ba4cb231175401ab33e5b92b

SHA512
248cbc9be0a4fe07f0ef3bdb40ea36d35543dbc0682ef7cab664df48655952545d091c4514175a9fd8fed5d9e161592de8c1da6ec974712d223c71e422b2e5a6

Download Submit
C:\Users\Admin\AppData\Roaming\test\test.exe
MD5
94d9b42c1466920403dcae7693fee217

SHA1
e395526bee14ecc603fa46d8f53c338793c4eeb4

SHA256
70c8f5e1e32900b1c913d80905977f6134f29a77ba4cb231175401ab33e5b92b

SHA512
248cbc9be0a4fe07f0ef3bdb40ea36d35543dbc0682ef7cab664df48655952545d091c4514175a9fd8fed5d9e161592de8c1da6ec974712d223c71e422b2e5a6

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe
MD5
94d9b42c1466920403dcae7693fee217

SHA1
e395526bee14ecc603fa46d8f53c338793c4eeb4

SHA256
70c8f5e1e32900b1c913d80905977f6134f29a77ba4cb231175401ab33e5b92b

SHA512
248cbc9be0a4fe07f0ef3bdb40ea36d35543dbc0682ef7cab664df48655952545d091c4514175a9fd8fed5d9e161592de8c1da6ec974712d223c71e422b2e5a6

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe
MD5
94d9b42c1466920403dcae7693fee217

SHA1
e395526bee14ecc603fa46d8f53c338793c4eeb4

SHA256
70c8f5e1e32900b1c913d80905977f6134f29a77ba4cb231175401ab33e5b92b

SHA512
248cbc9be0a4fe07f0ef3bdb40ea36d35543dbc0682ef7cab664df48655952545d091c4514175a9fd8fed5d9e161592de8c1da6ec974712d223c71e422b2e5a6

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe
MD5
94d9b42c1466920403dcae7693fee217

SHA1
e395526bee14ecc603fa46d8f53c338793c4eeb4

SHA256
70c8f5e1e32900b1c913d80905977f6134f29a77ba4cb231175401ab33e5b92b

SHA512
248cbc9be0a4fe07f0ef3bdb40ea36d35543dbc0682ef7cab664df48655952545d091c4514175a9fd8fed5d9e161592de8c1da6ec974712d223c71e422b2e5a6

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe
MD5
94d9b42c1466920403dcae7693fee217

SHA1
e395526bee14ecc603fa46d8f53c338793c4eeb4

SHA256
70c8f5e1e32900b1c913d80905977f6134f29a77ba4cb231175401ab33e5b92b

SHA512
248cbc9be0a4fe07f0ef3bdb40ea36d35543dbc0682ef7cab664df48655952545d091c4514175a9fd8fed5d9e161592de8c1da6ec974712d223c71e422b2e5a6

Download Submit
\Users\Admin\AppData\Roaming\test\test.exe
MD5
94d9b42c1466920403dcae7693fee217

SHA1
e395526bee14ecc603fa46d8f53c338793c4eeb4

SHA256
70c8f5e1e32900b1c913d80905977f6134f29a77ba4cb231175401ab33e5b92b

SHA512
248cbc9be0a4fe07f0ef3bdb40ea36d35543dbc0682ef7cab664df48655952545d091c4514175a9fd8fed5d9e161592de8c1da6ec974712d223c71e422b2e5a6

Download Submit
memory/328-90-0x0000000000000000-mapping.dmp

Download
memory/932-111-0x00000000004085D0-mapping.dmp

Download
memory/1168-81-0x0000000075011000-0x0000000075013000-memory.dmp

Filesize
8KB

Download
memory/1168-75-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1168-73-0x00000000004085D0-mapping.dmp

Download
memory/1168-71-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1236-84-0x0000000000000000-mapping.dmp

Download
memory/1540-121-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1540-115-0x00000000004B5640-mapping.dmp

Download
memory/1540-113-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1540-122-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1552-82-0x0000000000000000-mapping.dmp

Download
memory/1688-59-0x0000000000400000-0x000000000054B000-memory.dmp

Filesize
1.3MB

Download
memory/1688-70-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1688-72-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1688-79-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1688-77-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1688-78-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/1688-74-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1688-69-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1688-68-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1688-67-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1688-66-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

Download
memory/1688-65-0x0000000000401000-0x0000000000546000-memory.dmp

Filesize
1.3MB

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memory/1688-63-0x0000000000401000-0x0000000000546000-memory.dmp

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memory/1688-62-0x0000000000401000-0x0000000000546000-memory.dmp

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1.3MB

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