darkcomet | 4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f

General

Target

4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe
Size

772KB
MD5

68e8582308a2f05401ef6d076facd012
SHA1

2b2c9ed47453a7b8ef988da3d74af01e6d4340e6
SHA256

4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f
SHA512

14bd663c9c9ee8f4ac12774a14fd7a33108cf1fe7fed7afc8730719585e00521c4b12f03c5aba993f0ce98b6532794163b69c5a8bed84f71965c2d3f6e4fdcbc
SSDEEP

12288:7CuQHZyt8xPBhU2BNt1tBPOVsoaDWal2fdFP/Jh+xD6ikf:7CBxZjBl2DaOfTnbYW5f

Score

10^/10

darkcomet giriamo evasion rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

giriamo

C2

178.239.178.177:200

Mutex

DC_MUTEX-MBX97KS

Attributes

gencode
RTdAVRUtBLYH
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Executes dropped EXE 1 IoCs

Processes:

WinUpdate.exe

pid process

580 WinUpdate.exe
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1100 attrib.exe
316 attrib.exe
Loads dropped DLL 1 IoCs

Processes:

4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe

pid process

1260 4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe

pid	process
580	WinUpdate.exe

pid	process
1100	attrib.exe
316	attrib.exe

pid	process
1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe

description	pid	process	target process
PID 1260 set thread context of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe

pid process

1260 4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

WinUpdate.exe

pid process

580 WinUpdate.exe

pid	process
1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe

pid	process
580	WinUpdate.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exeWinUpdate.exe

description	pid	process
Token: SeDebugPrivilege	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe
Token: SeIncreaseQuotaPrivilege	580	WinUpdate.exe
Token: SeSecurityPrivilege	580	WinUpdate.exe
Token: SeTakeOwnershipPrivilege	580	WinUpdate.exe
Token: SeLoadDriverPrivilege	580	WinUpdate.exe
Token: SeSystemProfilePrivilege	580	WinUpdate.exe
Token: SeSystemtimePrivilege	580	WinUpdate.exe
Token: SeProfSingleProcessPrivilege	580	WinUpdate.exe
Token: SeIncBasePriorityPrivilege	580	WinUpdate.exe
Token: SeCreatePagefilePrivilege	580	WinUpdate.exe
Token: SeBackupPrivilege	580	WinUpdate.exe
Token: SeRestorePrivilege	580	WinUpdate.exe
Token: SeShutdownPrivilege	580	WinUpdate.exe
Token: SeDebugPrivilege	580	WinUpdate.exe
Token: SeSystemEnvironmentPrivilege	580	WinUpdate.exe
Token: SeChangeNotifyPrivilege	580	WinUpdate.exe
Token: SeRemoteShutdownPrivilege	580	WinUpdate.exe
Token: SeUndockPrivilege	580	WinUpdate.exe
Token: SeManageVolumePrivilege	580	WinUpdate.exe
Token: SeImpersonatePrivilege	580	WinUpdate.exe
Token: SeCreateGlobalPrivilege	580	WinUpdate.exe
Token: 33	580	WinUpdate.exe
Token: 34	580	WinUpdate.exe
Token: 35	580	WinUpdate.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

DllHost.exe

pid process

1952 DllHost.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

WinUpdate.exe

pid process

580 WinUpdate.exe

pid	process
1952	DllHost.exe

pid	process
580	WinUpdate.exe

Suspicious use of WriteProcessMemory 55 IoCs

Processes:

4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exeWinUpdate.execmd.execmd.exe

description	pid	process	target process
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 1260 wrote to memory of 580	1260	4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe	WinUpdate.exe
PID 580 wrote to memory of 1592	580	WinUpdate.exe	cmd.exe
PID 580 wrote to memory of 1592	580	WinUpdate.exe	cmd.exe
PID 580 wrote to memory of 1592	580	WinUpdate.exe	cmd.exe
PID 580 wrote to memory of 1592	580	WinUpdate.exe	cmd.exe
PID 580 wrote to memory of 1012	580	WinUpdate.exe	cmd.exe
PID 580 wrote to memory of 1012	580	WinUpdate.exe	cmd.exe
PID 580 wrote to memory of 1012	580	WinUpdate.exe	cmd.exe
PID 580 wrote to memory of 1012	580	WinUpdate.exe	cmd.exe
PID 1592 wrote to memory of 316	1592	cmd.exe	attrib.exe
PID 1592 wrote to memory of 316	1592	cmd.exe	attrib.exe
PID 1592 wrote to memory of 316	1592	cmd.exe	attrib.exe
PID 1592 wrote to memory of 316	1592	cmd.exe	attrib.exe
PID 1012 wrote to memory of 1100	1012	cmd.exe	attrib.exe
PID 1012 wrote to memory of 1100	1012	cmd.exe	attrib.exe
PID 1012 wrote to memory of 1100	1012	cmd.exe	attrib.exe
PID 1012 wrote to memory of 1100	1012	cmd.exe	attrib.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe
PID 580 wrote to memory of 832	580	WinUpdate.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

316 attrib.exe
1100 attrib.exe

pid	process
316	attrib.exe
1100	attrib.exe

C:\Users\Admin\AppData\Local\Temp\4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe
"C:\Users\Admin\AppData\Local\Temp\4123a31a7bc25e6a62bc2a0b63a09f123c8e357bdfd5c4e7f183e7f010149f5f.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1260

C:\Users\Admin\AppData\Local\Temp\AppLunch\WinUpdate.exe
C:\Users\Admin\AppData\Local\Temp\\AppLunch\WinUpdate.exe
2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:580

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\AppLunch\WinUpdate.exe" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:1592

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\AppLunch\WinUpdate.exe" +s +h
4⤵
- Sets file to hidden
- Views/modifies file attributes
PID:316

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\AppLunch" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:1012

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\AppLunch" +s +h
4⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1100

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:832

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1952

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

2

T1158

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\487436_494555917273809_1558112035_N.JPG
Filesize
18KB

MD5
13c2d008789cd754f9be4e88b07e66b5

SHA1
bf2cd3b19ac27b59115761bc0f451aace0467ae7

SHA256
7a0ff3bc01cab8f1afd116473965076b3c5071f92523c4dc3aa968a8e9cfb3e5

SHA512
151d75e7843009e81cd5f6c49e4f46087999ce4525e177db83c716840dcaa937dc6e8b2624e4ef3112ded3f7d9d2e9ca9410765908337ec02380e6a6f84deab7

Download Submit
C:\Users\Admin\AppData\Local\Temp\AppLunch\WinUpdate.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
C:\Users\Admin\AppData\Local\Temp\AppLunch\WinUpdate.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
\Users\Admin\AppData\Local\Temp\AppLunch\WinUpdate.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/316-82-0x0000000000000000-mapping.dmp

Download
memory/580-62-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-76-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-90-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-64-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-66-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-69-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-68-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-71-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-74-0x000000000048F888-mapping.dmp

Download
memory/580-73-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-59-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-60-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-78-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/580-84-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/832-87-0x0000000000000000-mapping.dmp

Download
memory/1012-81-0x0000000000000000-mapping.dmp

Download
memory/1100-83-0x0000000000000000-mapping.dmp

Download
memory/1260-56-0x0000000074C90000-0x000000007523B000-memory.dmp

Filesize
5.7MB

Download
memory/1260-57-0x00000000003B5000-0x00000000003C6000-memory.dmp

Filesize
68KB

Download
memory/1260-55-0x0000000074C90000-0x000000007523B000-memory.dmp

Filesize
5.7MB

Download
memory/1260-89-0x00000000003B5000-0x00000000003C6000-memory.dmp

Filesize
68KB

Download
memory/1260-54-0x0000000075C41000-0x0000000075C43000-memory.dmp

Filesize
8KB

Download
memory/1592-80-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads