arrowrat | d14ea2e8707de582868781011b9a07cdbe1c855b5beab114e5ffcc0689bd0550

Analysis

max time kernel
127s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-12-2024 11:45

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General

Target

Client.exe
Size

158KB
MD5

3c4f1cd073b3e89ecb68d543bf5993c0
SHA1

61e177312b22fbc4e2688d3e89fa9b109730d559
SHA256

d14ea2e8707de582868781011b9a07cdbe1c855b5beab114e5ffcc0689bd0550
SHA512

f9b39743df2e2e34fa1bfc72783e9e2a2f893227b27624d1016e915f46a32e9d21cf443d3a8c6a077d9ddd767df82c5eca0f08e633fbf3b02cfb9bcbe694562e
SSDEEP

3072:KbzkH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPtxO8Y:Kbzke0ODhTEPgnjuIJzo+PPcfPt88

Score

10^/10

arrowrat client persistence rat

Malware Config

Extracted

Family

arrowrat

Botnet

Client

given-aim.gl.at.ply.gg:20904

Mutex

akFknoCvQ

Signatures

ArrowRat
Remote access tool with various capabilities first seen in late 2021.
rat arrowrat
Arrowrat family
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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe
2808	Client.exe

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	Client.exe
Token: SeShutdownPrivilege	2236	explorer.exe
Token: SeShutdownPrivilege	2236	explorer.exe
Token: SeShutdownPrivilege	2236	explorer.exe
Token: SeShutdownPrivilege	2236	explorer.exe
Token: SeShutdownPrivilege	2236	explorer.exe
Token: SeShutdownPrivilege	2236	explorer.exe
Token: SeShutdownPrivilege	2236	explorer.exe
Token: SeShutdownPrivilege	2236	explorer.exe
Token: SeShutdownPrivilege	2236	explorer.exe
Token: SeShutdownPrivilege	2236	explorer.exe
Token: SeShutdownPrivilege	2236	explorer.exe
Token: SeShutdownPrivilege	2236	explorer.exe

Suspicious use of FindShellTrayWindow 27 IoCs

pid	Process
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe

Suspicious use of SendNotifyMessage 17 IoCs

pid	Process
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe
2236	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2808	Client.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2236	2808	Client.exe	31
PID 2808 wrote to memory of 2236	2808	Client.exe	31
PID 2808 wrote to memory of 2236	2808	Client.exe	31
PID 2808 wrote to memory of 2644	2808	Client.exe	32
PID 2808 wrote to memory of 2644	2808	Client.exe	32
PID 2808 wrote to memory of 2644	2808	Client.exe	32
PID 2808 wrote to memory of 2644	2808	Client.exe	32
PID 2808 wrote to memory of 2728	2808	Client.exe	33
PID 2808 wrote to memory of 2728	2808	Client.exe	33
PID 2808 wrote to memory of 2728	2808	Client.exe	33
PID 2808 wrote to memory of 2728	2808	Client.exe	33
PID 2808 wrote to memory of 2744	2808	Client.exe	34
PID 2808 wrote to memory of 2744	2808	Client.exe	34
PID 2808 wrote to memory of 2744	2808	Client.exe	34
PID 2808 wrote to memory of 2744	2808	Client.exe	34
PID 2808 wrote to memory of 2748	2808	Client.exe	35
PID 2808 wrote to memory of 2748	2808	Client.exe	35
PID 2808 wrote to memory of 2748	2808	Client.exe	35
PID 2808 wrote to memory of 2748	2808	Client.exe	35
PID 2808 wrote to memory of 2764	2808	Client.exe	36
PID 2808 wrote to memory of 2764	2808	Client.exe	36
PID 2808 wrote to memory of 2764	2808	Client.exe	36
PID 2808 wrote to memory of 2764	2808	Client.exe	36
PID 2808 wrote to memory of 2792	2808	Client.exe	37
PID 2808 wrote to memory of 2792	2808	Client.exe	37
PID 2808 wrote to memory of 2792	2808	Client.exe	37
PID 2808 wrote to memory of 2792	2808	Client.exe	37
PID 2808 wrote to memory of 2732	2808	Client.exe	38
PID 2808 wrote to memory of 2732	2808	Client.exe	38
PID 2808 wrote to memory of 2732	2808	Client.exe	38
PID 2808 wrote to memory of 2732	2808	Client.exe	38
PID 2808 wrote to memory of 2692	2808	Client.exe	39
PID 2808 wrote to memory of 2692	2808	Client.exe	39
PID 2808 wrote to memory of 2692	2808	Client.exe	39
PID 2808 wrote to memory of 2692	2808	Client.exe	39
PID 2808 wrote to memory of 2780	2808	Client.exe	40
PID 2808 wrote to memory of 2780	2808	Client.exe	40
PID 2808 wrote to memory of 2780	2808	Client.exe	40
PID 2808 wrote to memory of 2780	2808	Client.exe	40
PID 2808 wrote to memory of 2540	2808	Client.exe	41
PID 2808 wrote to memory of 2540	2808	Client.exe	41
PID 2808 wrote to memory of 2540	2808	Client.exe	41
PID 2808 wrote to memory of 2540	2808	Client.exe	41
PID 2236 wrote to memory of 2696	2236	explorer.exe	42
PID 2236 wrote to memory of 2696	2236	explorer.exe	42
PID 2236 wrote to memory of 2696	2236	explorer.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⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2808
- 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:2236
- - C:\Windows\system32\ctfmon.exe
    ctfmon.exe
    3⤵
    PID:2696
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client given-aim.gl.at.ply.gg 20904 akFknoCvQ
  2⤵
  PID:2644
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client given-aim.gl.at.ply.gg 20904 akFknoCvQ
  2⤵
  PID:2728
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client given-aim.gl.at.ply.gg 20904 akFknoCvQ
  2⤵
  PID:2744
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client given-aim.gl.at.ply.gg 20904 akFknoCvQ
  2⤵
  PID:2748
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client given-aim.gl.at.ply.gg 20904 akFknoCvQ
  2⤵
  PID:2764
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client given-aim.gl.at.ply.gg 20904 akFknoCvQ
  2⤵
  PID:2792
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client given-aim.gl.at.ply.gg 20904 akFknoCvQ
  2⤵
  PID:2732
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client given-aim.gl.at.ply.gg 20904 akFknoCvQ
  2⤵
  PID:2692
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client given-aim.gl.at.ply.gg 20904 akFknoCvQ
  2⤵
  PID:2780
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client given-aim.gl.at.ply.gg 20904 akFknoCvQ
  2⤵
  PID:2540

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

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2236-8-0x0000000003D90000-0x0000000003DA0000-memory.dmp

Filesize
64KB

Download
memory/2808-0-0x000007FEF5803000-0x000007FEF5804000-memory.dmp

Filesize
4KB

Download
memory/2808-1-0x00000000003C0000-0x00000000003EE000-memory.dmp

Filesize
184KB

Download
memory/2808-2-0x000007FEF5800000-0x000007FEF61EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-3-0x000007FEF5803000-0x000007FEF5804000-memory.dmp

Filesize
4KB

Download
memory/2808-4-0x000007FEF5800000-0x000007FEF61EC000-memory.dmp

Filesize
9.9MB

Download