darkcomet | 0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7

General

Target

0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe
Size

736KB
MD5

aa790ff4f430ab3af619c31d4d0d9c92
SHA1

8fe417542db5fe0671fb164bbdc9973e6c48f73a
SHA256

0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7
SHA512

abfa2156fbeba332ca669cc54c7c75f58fcdc57546ef6f4244217ab2471b106a32d35c9348ca3a22294c2fbcb0ea1f3416b32617aa84bd29372fbf0a0f6e0031
SSDEEP

12288:a5gTvBHv8dtRtpkxG/2VDFQa5xfUGXp/s0RpirOIAp555:aQBHv8dtR/kCcQcxfUG5U2pirB

Score

10^/10

darkcomet v1 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

v1

C2

easytoremember.no-ip.biz:9003

Mutex

DC_MUTEX-RHEVRRJ

Attributes

InstallPath
GoogleUpdate\updater.exe
gencode
3bnD3E1CbrMc
install
true
offline_keylogger
true
persistence
true
reg_key
googleupdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

vbc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\GoogleUpdate\\updater.exe"	vbc.exe

Executes dropped EXE 1 IoCs

Processes:

updater.exe

pid process

1868 updater.exe
Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2024 attrib.exe
Loads dropped DLL 1 IoCs

Processes:

vbc.exe

pid process

1520 vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
1868	updater.exe

pid	process
2024	attrib.exe

pid	process
1520	vbc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exevbc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\CSGO Hack = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe"	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\googleupdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\GoogleUpdate\\updater.exe"	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe

description	pid	process	target process
PID 1956 set thread context of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe

Drops file in Windows directory 1 IoCs

Processes:

attrib.exe

description ioc process

File opened for modification C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe attrib.exe

description	ioc	process
File opened for modification	C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe	attrib.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

vbc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1520	vbc.exe
Token: SeSecurityPrivilege	1520	vbc.exe
Token: SeTakeOwnershipPrivilege	1520	vbc.exe
Token: SeLoadDriverPrivilege	1520	vbc.exe
Token: SeSystemProfilePrivilege	1520	vbc.exe
Token: SeSystemtimePrivilege	1520	vbc.exe
Token: SeProfSingleProcessPrivilege	1520	vbc.exe
Token: SeIncBasePriorityPrivilege	1520	vbc.exe
Token: SeCreatePagefilePrivilege	1520	vbc.exe
Token: SeBackupPrivilege	1520	vbc.exe
Token: SeRestorePrivilege	1520	vbc.exe
Token: SeShutdownPrivilege	1520	vbc.exe
Token: SeDebugPrivilege	1520	vbc.exe
Token: SeSystemEnvironmentPrivilege	1520	vbc.exe
Token: SeChangeNotifyPrivilege	1520	vbc.exe
Token: SeRemoteShutdownPrivilege	1520	vbc.exe
Token: SeUndockPrivilege	1520	vbc.exe
Token: SeManageVolumePrivilege	1520	vbc.exe
Token: SeImpersonatePrivilege	1520	vbc.exe
Token: SeCreateGlobalPrivilege	1520	vbc.exe
Token: 33	1520	vbc.exe
Token: 34	1520	vbc.exe
Token: 35	1520	vbc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exevbc.execmd.exe

description	pid	process	target process
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1956 wrote to memory of 1520	1956	0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe	vbc.exe
PID 1520 wrote to memory of 816	1520	vbc.exe	cmd.exe
PID 1520 wrote to memory of 816	1520	vbc.exe	cmd.exe
PID 1520 wrote to memory of 816	1520	vbc.exe	cmd.exe
PID 1520 wrote to memory of 816	1520	vbc.exe	cmd.exe
PID 816 wrote to memory of 2024	816	cmd.exe	attrib.exe
PID 816 wrote to memory of 2024	816	cmd.exe	attrib.exe
PID 816 wrote to memory of 2024	816	cmd.exe	attrib.exe
PID 816 wrote to memory of 2024	816	cmd.exe	attrib.exe
PID 1520 wrote to memory of 1868	1520	vbc.exe	updater.exe
PID 1520 wrote to memory of 1868	1520	vbc.exe	updater.exe
PID 1520 wrote to memory of 1868	1520	vbc.exe	updater.exe
PID 1520 wrote to memory of 1868	1520	vbc.exe	updater.exe
PID 1520 wrote to memory of 1868	1520	vbc.exe	updater.exe
PID 1520 wrote to memory of 1868	1520	vbc.exe	updater.exe
PID 1520 wrote to memory of 1868	1520	vbc.exe	updater.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2024 attrib.exe

pid	process
2024	attrib.exe

C:\Users\Admin\AppData\Local\Temp\0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe
"C:\Users\Admin\AppData\Local\Temp\0797ecf215ad293bb9cec8cc8d7c48721866a224585490bf3993910366b134b7.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
2⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1520

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
3⤵
- Suspicious use of WriteProcessMemory
PID:816

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
4⤵
- Sets file to hidden
- Drops file in Windows directory
- Views/modifies file attributes
PID:2024

C:\Users\Admin\AppData\Local\Temp\GoogleUpdate\updater.exe
"C:\Users\Admin\AppData\Local\Temp\GoogleUpdate\updater.exe"
3⤵
- Executes dropped EXE
PID:1868

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Winlogon Helper DLL

1

T1004

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Hidden Files and Directories

2

T1158

Scripting

1

T1064

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\GoogleUpdate\updater.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
C:\Users\Admin\AppData\Local\Temp\GoogleUpdate\updater.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
\Users\Admin\AppData\Local\Temp\GoogleUpdate\updater.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/816-63-0x0000000000000000-mapping.dmp

Download
memory/1520-61-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1520-58-0x000000000048F888-mapping.dmp

Download
memory/1520-59-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1520-57-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1520-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1868-66-0x0000000000000000-mapping.dmp

Download
memory/1956-54-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

Download
memory/1956-62-0x00000000742C0000-0x000000007486B000-memory.dmp

Filesize
5.7MB

Download
memory/1956-56-0x00000000742C0000-0x000000007486B000-memory.dmp

Filesize
5.7MB

Download
memory/1956-55-0x00000000742C0000-0x000000007486B000-memory.dmp

Filesize
5.7MB

Download
memory/2024-64-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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