darkcomet | 9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102

Analysis

max time kernel
154s
max time network
188s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
26/11/2022, 00:50

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General

Target

9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe
Size

959KB
MD5

2dcc4af23724792f0dc84360e39d53de
SHA1

ca0d6bd307d29cdf522082d8eba3f154293ce2c8
SHA256

9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102
SHA512

9b61a50d09e7c10840952675ba1050700c8d0c5caeaed35f03099393666c7f5bdb9730724033a50a4243666edc4aab2ac2eb2e4a50fc98116fa1ceb5fc043250
SSDEEP

24576:JRmJkcoQricOIQxiZY1iaJ6SZmMcxVZRHARCT:GJZoQrbTFZY1iaJ6SUBD3ARCT

Score

10^/10

darkcomet bot's3215 evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Bot's3215

minibooba33250.no-ip.biz:1604

192.168.0.8:1604

Mutex

DC_MUTEX-V2WN5HL

Attributes

gencode
Szv7dymDokVR
install
false
offline_keylogger
true
persistence
false

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "%AppData%\\taskhost.exe,explorer.exe"	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\taskhost.exe = "%AppData%\\taskhost.exe"	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.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

pid	Process
1508	attrib.exe
1484	attrib.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/316-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/316-58-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/316-59-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/316-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/316-63-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/316-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/316-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/316-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\taskhost.exe = "%AppData%\\taskhost.exe"	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\svchost.exe	attrib.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 936 set thread context of 316	936	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe	28

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64	attrib.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 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	316	svchost.exe
Token: SeSecurityPrivilege	316	svchost.exe
Token: SeTakeOwnershipPrivilege	316	svchost.exe
Token: SeLoadDriverPrivilege	316	svchost.exe
Token: SeSystemProfilePrivilege	316	svchost.exe
Token: SeSystemtimePrivilege	316	svchost.exe
Token: SeProfSingleProcessPrivilege	316	svchost.exe
Token: SeIncBasePriorityPrivilege	316	svchost.exe
Token: SeCreatePagefilePrivilege	316	svchost.exe
Token: SeBackupPrivilege	316	svchost.exe
Token: SeRestorePrivilege	316	svchost.exe
Token: SeShutdownPrivilege	316	svchost.exe
Token: SeDebugPrivilege	316	svchost.exe
Token: SeSystemEnvironmentPrivilege	316	svchost.exe
Token: SeChangeNotifyPrivilege	316	svchost.exe
Token: SeRemoteShutdownPrivilege	316	svchost.exe
Token: SeUndockPrivilege	316	svchost.exe
Token: SeManageVolumePrivilege	316	svchost.exe
Token: SeImpersonatePrivilege	316	svchost.exe
Token: SeCreateGlobalPrivilege	316	svchost.exe
Token: 33	316	svchost.exe
Token: 34	316	svchost.exe
Token: 35	316	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
316	svchost.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 936 wrote to memory of 316	936	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe	28
PID 936 wrote to memory of 316	936	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe	28
PID 936 wrote to memory of 316	936	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe	28
PID 936 wrote to memory of 316	936	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe	28
PID 936 wrote to memory of 316	936	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe	28
PID 936 wrote to memory of 316	936	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe	28
PID 936 wrote to memory of 316	936	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe	28
PID 936 wrote to memory of 316	936	9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe	28
PID 316 wrote to memory of 468	316	svchost.exe	29
PID 316 wrote to memory of 468	316	svchost.exe	29
PID 316 wrote to memory of 468	316	svchost.exe	29
PID 316 wrote to memory of 468	316	svchost.exe	29
PID 316 wrote to memory of 560	316	svchost.exe	30
PID 316 wrote to memory of 560	316	svchost.exe	30
PID 316 wrote to memory of 560	316	svchost.exe	30
PID 316 wrote to memory of 560	316	svchost.exe	30
PID 468 wrote to memory of 1508	468	cmd.exe	34
PID 468 wrote to memory of 1508	468	cmd.exe	34
PID 468 wrote to memory of 1508	468	cmd.exe	34
PID 468 wrote to memory of 1508	468	cmd.exe	34
PID 560 wrote to memory of 1484	560	cmd.exe	35
PID 560 wrote to memory of 1484	560	cmd.exe	35
PID 560 wrote to memory of 1484	560	cmd.exe	35
PID 560 wrote to memory of 1484	560	cmd.exe	35
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33
PID 316 wrote to memory of 1892	316	svchost.exe	33

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1508	attrib.exe
1484	attrib.exe

C:\Users\Admin\AppData\Local\Temp\9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe
"C:\Users\Admin\AppData\Local\Temp\9402ae09e16f32bf1e5fba3779badda2684f3987630d3502bd621fddbab2c102.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:936
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:316
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\SysWOW64\svchost.exe" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:468
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Windows\SysWOW64\svchost.exe" +s +h
      4⤵
      Sets file to hidden
      Drops file in System32 directory
      Views/modifies file attributes
      PID:1508
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\SysWOW64" +s +h
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:560
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Windows\SysWOW64" +s +h
      4⤵
      Sets file to hidden
      Drops file in Windows directory
      Views/modifies file attributes
      PID:1484
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:1892

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/316-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/316-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/316-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/316-58-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/316-59-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/316-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/316-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/316-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/316-63-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/936-54-0x0000000076941000-0x0000000076943000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads