arrowrat | dee58e8a247eab9726675a03ddc8485c66a204d7b9f2211d8fea89729d45e7a5

Resubmissions

05-09-2024 13:44

240905-q16deasbkr 10

02-09-2024 17:59

240902-wk51lavbpn 10

Analysis

max time kernel
0s
max time network
2s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
02-09-2024 17:59

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General

Target

Client.exe
Size

158KB
MD5

ff04efb632b00fdd46fd3fe992ea8a37
SHA1

8a6f3fd785ac3d78e8de79656a9fa8f0c9527fb7
SHA256

dee58e8a247eab9726675a03ddc8485c66a204d7b9f2211d8fea89729d45e7a5
SHA512

a5747653fcaa76aea2cf7bc601b87e583c37f9fa34e399f30d4eaa816655b04c1ec14807477ddb965d6f276e4023560618550d124483e9608585fcbf392dde5a
SSDEEP

3072:qbzGH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPTKO8Y:qbzGe0ODhTEPgnjuIJzo+PPcfPT18

Score

10^/10

arrowrat client persistence rat

Malware Config

Extracted

Family

arrowrat

Botnet

Client

6.tcp.eu.ngrok.io:13114

Mutex

rLGiSBuYa

Signatures

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

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe
2616	Client.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2616	Client.exe
Token: SeShutdownPrivilege	2932	explorer.exe
Token: SeShutdownPrivilege	2932	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2616	Client.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 2932	2616	Client.exe	29
PID 2616 wrote to memory of 2932	2616	Client.exe	29
PID 2616 wrote to memory of 2932	2616	Client.exe	29
PID 2932 wrote to memory of 2276	2932	explorer.exe	31
PID 2932 wrote to memory of 2276	2932	explorer.exe	31
PID 2932 wrote to memory of 2276	2932	explorer.exe	31
PID 2616 wrote to memory of 2264	2616	Client.exe	30
PID 2616 wrote to memory of 2264	2616	Client.exe	30
PID 2616 wrote to memory of 2264	2616	Client.exe	30
PID 2616 wrote to memory of 2264	2616	Client.exe	30
PID 2616 wrote to memory of 2848	2616	Client.exe	32
PID 2616 wrote to memory of 2848	2616	Client.exe	32
PID 2616 wrote to memory of 2848	2616	Client.exe	32
PID 2616 wrote to memory of 2848	2616	Client.exe	32
PID 2616 wrote to memory of 2876	2616	Client.exe	33
PID 2616 wrote to memory of 2876	2616	Client.exe	33
PID 2616 wrote to memory of 2876	2616	Client.exe	33
PID 2616 wrote to memory of 2876	2616	Client.exe	33
PID 2616 wrote to memory of 2904	2616	Client.exe	34
PID 2616 wrote to memory of 2904	2616	Client.exe	34
PID 2616 wrote to memory of 2904	2616	Client.exe	34
PID 2616 wrote to memory of 2904	2616	Client.exe	34
PID 2616 wrote to memory of 3048	2616	Client.exe	35
PID 2616 wrote to memory of 3048	2616	Client.exe	35
PID 2616 wrote to memory of 3048	2616	Client.exe	35
PID 2616 wrote to memory of 3048	2616	Client.exe	35
PID 2616 wrote to memory of 2796	2616	Client.exe	36
PID 2616 wrote to memory of 2796	2616	Client.exe	36
PID 2616 wrote to memory of 2796	2616	Client.exe	36
PID 2616 wrote to memory of 2796	2616	Client.exe	36
PID 2616 wrote to memory of 2748	2616	Client.exe	37
PID 2616 wrote to memory of 2748	2616	Client.exe	37
PID 2616 wrote to memory of 2748	2616	Client.exe	37
PID 2616 wrote to memory of 2748	2616	Client.exe	37
PID 2616 wrote to memory of 2768	2616	Client.exe	38
PID 2616 wrote to memory of 2768	2616	Client.exe	38
PID 2616 wrote to memory of 2768	2616	Client.exe	38
PID 2616 wrote to memory of 2768	2616	Client.exe	38

C:\Users\Admin\AppData\Local\Temp\Client.exe
"C:\Users\Admin\AppData\Local\Temp\Client.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Windows\explorer.exe
  "C:\Windows\explorer.exe"
  2⤵
  - Boot or Logon Autostart Execution: Active Setup
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2932
- - C:\Windows\system32\ctfmon.exe
    ctfmon.exe
    3⤵
    PID:2276
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 6.tcp.eu.ngrok.io 13114 rLGiSBuYa
  2⤵
  PID:2264
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 6.tcp.eu.ngrok.io 13114 rLGiSBuYa
  2⤵
  PID:2848
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 6.tcp.eu.ngrok.io 13114 rLGiSBuYa
  2⤵
  PID:2876
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 6.tcp.eu.ngrok.io 13114 rLGiSBuYa
  2⤵
  PID:2904
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 6.tcp.eu.ngrok.io 13114 rLGiSBuYa
  2⤵
  PID:3048
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 6.tcp.eu.ngrok.io 13114 rLGiSBuYa
  2⤵
  PID:2796
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 6.tcp.eu.ngrok.io 13114 rLGiSBuYa
  2⤵
  PID:2748
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 6.tcp.eu.ngrok.io 13114 rLGiSBuYa
  2⤵
  PID:2768
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 6.tcp.eu.ngrok.io 13114 rLGiSBuYa
  2⤵
  PID:2920
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 6.tcp.eu.ngrok.io 13114 rLGiSBuYa
  2⤵
  PID:2872
- C:\Windows\System32\ComputerDefaults.exe
  "C:\Windows\System32\ComputerDefaults.exe"
  2⤵
  PID:2120

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x5c4
1⤵
PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2616-0-0x000007FEF68F3000-0x000007FEF68F4000-memory.dmp

Filesize
4KB

Download
memory/2616-1-0x0000000001360000-0x000000000138E000-memory.dmp

Filesize
184KB

Download