arrowrat | 6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090

Analysis

max time kernel
127s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-11-2024 19:44

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General

Target

6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
Size

138KB
MD5

348c70b182eb53d74fe080f57c7265bc
SHA1

42e3e7c848fc8774dd7bd6be1e3bdfe98fc86e06
SHA256

6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090
SHA512

3b2c3f04443e76371fdd03aae0b4c846bcf585ad69d235ff595612f24a96607b7c44b5182a66c87b589044a5d3b2b77839c384b5ccc7fc65b8b10c40982ada12
SSDEEP

3072:Jbvs5mz7Bqh1v59Y08mAjs0Ltel+qOeJHlpV8b+Y/Yl:JbvES7BqjjYHdrqkL/

Score

10^/10

arrowrat brasil persistence rat

Malware Config

Extracted

Family

arrowrat

Botnet

BRASIL

chromedata.accesscam.org:1338

Mutex

imfoNeSSi

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

Processes:

explorer.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Modifies registry class 5 IoCs

Processes:

explorer.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_Classes\Local Settings	explorer.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe

pid	Process
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exeexplorer.exe

description	pid	Process
Token: SeDebugPrivilege	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
Token: SeShutdownPrivilege	2136	explorer.exe
Token: SeShutdownPrivilege	2136	explorer.exe
Token: SeShutdownPrivilege	2136	explorer.exe
Token: SeShutdownPrivilege	2136	explorer.exe
Token: SeShutdownPrivilege	2136	explorer.exe
Token: SeShutdownPrivilege	2136	explorer.exe
Token: SeShutdownPrivilege	2136	explorer.exe
Token: SeShutdownPrivilege	2136	explorer.exe
Token: SeShutdownPrivilege	2136	explorer.exe
Token: SeShutdownPrivilege	2136	explorer.exe
Token: SeShutdownPrivilege	2136	explorer.exe

Suspicious use of FindShellTrayWindow 27 IoCs

Processes:

explorer.exe

pid	Process
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe

Suspicious use of SendNotifyMessage 21 IoCs

Processes:

explorer.exe

pid	Process
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe
2136	explorer.exe

Suspicious use of WriteProcessMemory 46 IoCs

Processes:

6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exeexplorer.exe

description	pid	Process	procid_target
PID 1016 wrote to memory of 2136	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	30
PID 1016 wrote to memory of 2136	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	30
PID 1016 wrote to memory of 2136	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	30
PID 2136 wrote to memory of 2128	2136	explorer.exe	32
PID 2136 wrote to memory of 2128	2136	explorer.exe	32
PID 2136 wrote to memory of 2128	2136	explorer.exe	32
PID 1016 wrote to memory of 1608	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	31
PID 1016 wrote to memory of 1608	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	31
PID 1016 wrote to memory of 1608	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	31
PID 1016 wrote to memory of 1608	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	31
PID 1016 wrote to memory of 2460	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	33
PID 1016 wrote to memory of 2460	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	33
PID 1016 wrote to memory of 2460	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	33
PID 1016 wrote to memory of 2460	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	33
PID 1016 wrote to memory of 2400	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	34
PID 1016 wrote to memory of 2400	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	34
PID 1016 wrote to memory of 2400	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	34
PID 1016 wrote to memory of 2400	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	34
PID 1016 wrote to memory of 2604	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	35
PID 1016 wrote to memory of 2604	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	35
PID 1016 wrote to memory of 2604	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	35
PID 1016 wrote to memory of 2604	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	35
PID 1016 wrote to memory of 2236	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	36
PID 1016 wrote to memory of 2236	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	36
PID 1016 wrote to memory of 2236	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	36
PID 1016 wrote to memory of 2236	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	36
PID 1016 wrote to memory of 2620	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	37
PID 1016 wrote to memory of 2620	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	37
PID 1016 wrote to memory of 2620	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	37
PID 1016 wrote to memory of 2620	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	37
PID 1016 wrote to memory of 2616	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	38
PID 1016 wrote to memory of 2616	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	38
PID 1016 wrote to memory of 2616	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	38
PID 1016 wrote to memory of 2616	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	38
PID 1016 wrote to memory of 2660	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	39
PID 1016 wrote to memory of 2660	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	39
PID 1016 wrote to memory of 2660	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	39
PID 1016 wrote to memory of 2660	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	39
PID 1016 wrote to memory of 2716	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	40
PID 1016 wrote to memory of 2716	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	40
PID 1016 wrote to memory of 2716	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	40
PID 1016 wrote to memory of 2716	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	40
PID 1016 wrote to memory of 2720	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	41
PID 1016 wrote to memory of 2720	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	41
PID 1016 wrote to memory of 2720	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	41
PID 1016 wrote to memory of 2720	1016	6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe	41

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\6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe
"C:\Users\Admin\AppData\Local\Temp\6aad7dead2ff9aa2996314a6c73f3043513ed155ed36507411efb7b38343c090.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1016
- 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:2136
- - C:\Windows\system32\ctfmon.exe
    ctfmon.exe
    3⤵
    PID:2128
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
  2⤵
  PID:1608
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
  2⤵
  PID:2460
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
  2⤵
  PID:2400
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
  2⤵
  PID:2604
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
  2⤵
  PID:2236
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
  2⤵
  PID:2620
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
  2⤵
  PID:2616
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
  2⤵
  PID:2660
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
  2⤵
  PID:2716
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" BRASIL chromedata.accesscam.org 1338 imfoNeSSi
  2⤵
  PID:2720

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/1016-0-0x000007FEF5BD3000-0x000007FEF5BD4000-memory.dmp

Filesize
4KB

Download
memory/1016-1-0x00000000012A0000-0x00000000012C8000-memory.dmp

Filesize
160KB

Download
memory/2136-5-0x0000000003D20000-0x0000000003D30000-memory.dmp

Filesize
64KB

Download