arrowrat | 7f8cb35c0290b33bcb49876680340b63061a3fc1558c372a42d87ec21c03ed66

Analysis

max time kernel
127s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 02:33

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General

Target

72cabad77d69e7701af2d31218ac4b7e.exe
Size

158KB
MD5

72cabad77d69e7701af2d31218ac4b7e
SHA1

e781c9c87a30163cdef9b5f6f419c27f26e8f271
SHA256

7f8cb35c0290b33bcb49876680340b63061a3fc1558c372a42d87ec21c03ed66
SHA512

709ad82ff09dc32dac22e8aa431833b885f8df4a2e61279fde90b7dad771d55b9a318372d645b8538dee0fdb4aeaed36c1408be00f27c102734aad8bb83a067c
SSDEEP

3072:LbzQH+0OoCthfbEFtbcfjF45gjryKKqH6JY2doszEmQotEPPcfPjBO8Y:LbzQe0ODhTEPgnjuIJzo+PPcfPjM8

Score

10^/10

arrowrat client persistence rat

Malware Config

Extracted

Family

arrowrat

Botnet

Client

single-point.gl.at.ply.gg:48752

Mutex

NuBrONaJi

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

Processes:

explorer.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Modifies registry class 5 IoCs

Processes:

explorer.exe

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

72cabad77d69e7701af2d31218ac4b7e.exe

pid	Process
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe
2356	72cabad77d69e7701af2d31218ac4b7e.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

72cabad77d69e7701af2d31218ac4b7e.exeexplorer.exe

description	pid	Process
Token: SeDebugPrivilege	2356	72cabad77d69e7701af2d31218ac4b7e.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 17 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

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

72cabad77d69e7701af2d31218ac4b7e.exe

pid	Process
2356	72cabad77d69e7701af2d31218ac4b7e.exe

Suspicious use of WriteProcessMemory 49 IoCs

Processes:

72cabad77d69e7701af2d31218ac4b7e.exeexplorer.exe

description	pid	Process	procid_target
PID 2356 wrote to memory of 2136	2356	72cabad77d69e7701af2d31218ac4b7e.exe	28
PID 2356 wrote to memory of 2136	2356	72cabad77d69e7701af2d31218ac4b7e.exe	28
PID 2356 wrote to memory of 2136	2356	72cabad77d69e7701af2d31218ac4b7e.exe	28
PID 2136 wrote to memory of 2184	2136	explorer.exe	29
PID 2136 wrote to memory of 2184	2136	explorer.exe	29
PID 2136 wrote to memory of 2184	2136	explorer.exe	29
PID 2356 wrote to memory of 3056	2356	72cabad77d69e7701af2d31218ac4b7e.exe	30
PID 2356 wrote to memory of 3056	2356	72cabad77d69e7701af2d31218ac4b7e.exe	30
PID 2356 wrote to memory of 3056	2356	72cabad77d69e7701af2d31218ac4b7e.exe	30
PID 2356 wrote to memory of 3056	2356	72cabad77d69e7701af2d31218ac4b7e.exe	30
PID 2356 wrote to memory of 2292	2356	72cabad77d69e7701af2d31218ac4b7e.exe	31
PID 2356 wrote to memory of 2292	2356	72cabad77d69e7701af2d31218ac4b7e.exe	31
PID 2356 wrote to memory of 2292	2356	72cabad77d69e7701af2d31218ac4b7e.exe	31
PID 2356 wrote to memory of 2292	2356	72cabad77d69e7701af2d31218ac4b7e.exe	31
PID 2356 wrote to memory of 2556	2356	72cabad77d69e7701af2d31218ac4b7e.exe	32
PID 2356 wrote to memory of 2556	2356	72cabad77d69e7701af2d31218ac4b7e.exe	32
PID 2356 wrote to memory of 2556	2356	72cabad77d69e7701af2d31218ac4b7e.exe	32
PID 2356 wrote to memory of 2556	2356	72cabad77d69e7701af2d31218ac4b7e.exe	32
PID 2356 wrote to memory of 2592	2356	72cabad77d69e7701af2d31218ac4b7e.exe	33
PID 2356 wrote to memory of 2592	2356	72cabad77d69e7701af2d31218ac4b7e.exe	33
PID 2356 wrote to memory of 2592	2356	72cabad77d69e7701af2d31218ac4b7e.exe	33
PID 2356 wrote to memory of 2592	2356	72cabad77d69e7701af2d31218ac4b7e.exe	33
PID 2356 wrote to memory of 2120	2356	72cabad77d69e7701af2d31218ac4b7e.exe	34
PID 2356 wrote to memory of 2120	2356	72cabad77d69e7701af2d31218ac4b7e.exe	34
PID 2356 wrote to memory of 2120	2356	72cabad77d69e7701af2d31218ac4b7e.exe	34
PID 2356 wrote to memory of 2120	2356	72cabad77d69e7701af2d31218ac4b7e.exe	34
PID 2356 wrote to memory of 2656	2356	72cabad77d69e7701af2d31218ac4b7e.exe	35
PID 2356 wrote to memory of 2656	2356	72cabad77d69e7701af2d31218ac4b7e.exe	35
PID 2356 wrote to memory of 2656	2356	72cabad77d69e7701af2d31218ac4b7e.exe	35
PID 2356 wrote to memory of 2656	2356	72cabad77d69e7701af2d31218ac4b7e.exe	35
PID 2356 wrote to memory of 2668	2356	72cabad77d69e7701af2d31218ac4b7e.exe	36
PID 2356 wrote to memory of 2668	2356	72cabad77d69e7701af2d31218ac4b7e.exe	36
PID 2356 wrote to memory of 2668	2356	72cabad77d69e7701af2d31218ac4b7e.exe	36
PID 2356 wrote to memory of 2668	2356	72cabad77d69e7701af2d31218ac4b7e.exe	36
PID 2356 wrote to memory of 2684	2356	72cabad77d69e7701af2d31218ac4b7e.exe	37
PID 2356 wrote to memory of 2684	2356	72cabad77d69e7701af2d31218ac4b7e.exe	37
PID 2356 wrote to memory of 2684	2356	72cabad77d69e7701af2d31218ac4b7e.exe	37
PID 2356 wrote to memory of 2684	2356	72cabad77d69e7701af2d31218ac4b7e.exe	37
PID 2356 wrote to memory of 2708	2356	72cabad77d69e7701af2d31218ac4b7e.exe	38
PID 2356 wrote to memory of 2708	2356	72cabad77d69e7701af2d31218ac4b7e.exe	38
PID 2356 wrote to memory of 2708	2356	72cabad77d69e7701af2d31218ac4b7e.exe	38
PID 2356 wrote to memory of 2708	2356	72cabad77d69e7701af2d31218ac4b7e.exe	38
PID 2356 wrote to memory of 2604	2356	72cabad77d69e7701af2d31218ac4b7e.exe	39
PID 2356 wrote to memory of 2604	2356	72cabad77d69e7701af2d31218ac4b7e.exe	39
PID 2356 wrote to memory of 2604	2356	72cabad77d69e7701af2d31218ac4b7e.exe	39
PID 2356 wrote to memory of 2604	2356	72cabad77d69e7701af2d31218ac4b7e.exe	39
PID 2356 wrote to memory of 2092	2356	72cabad77d69e7701af2d31218ac4b7e.exe	40
PID 2356 wrote to memory of 2092	2356	72cabad77d69e7701af2d31218ac4b7e.exe	40
PID 2356 wrote to memory of 2092	2356	72cabad77d69e7701af2d31218ac4b7e.exe	40

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\72cabad77d69e7701af2d31218ac4b7e.exe
"C:\Users\Admin\AppData\Local\Temp\72cabad77d69e7701af2d31218ac4b7e.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2356
- 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:2184
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client single-point.gl.at.ply.gg 48752 NuBrONaJi
  2⤵
  PID:3056
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client single-point.gl.at.ply.gg 48752 NuBrONaJi
  2⤵
  PID:2292
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client single-point.gl.at.ply.gg 48752 NuBrONaJi
  2⤵
  PID:2556
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client single-point.gl.at.ply.gg 48752 NuBrONaJi
  2⤵
  PID:2592
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client single-point.gl.at.ply.gg 48752 NuBrONaJi
  2⤵
  PID:2120
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client single-point.gl.at.ply.gg 48752 NuBrONaJi
  2⤵
  PID:2656
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client single-point.gl.at.ply.gg 48752 NuBrONaJi
  2⤵
  PID:2668
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client single-point.gl.at.ply.gg 48752 NuBrONaJi
  2⤵
  PID:2684
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client single-point.gl.at.ply.gg 48752 NuBrONaJi
  2⤵
  PID:2708
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client single-point.gl.at.ply.gg 48752 NuBrONaJi
  2⤵
  PID:2604
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2356 -s 672
  2⤵
  PID:2092

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/2136-6-0x00000000033A0000-0x00000000033B0000-memory.dmp

Filesize
64KB

Download
memory/2356-0-0x000007FEF54C3000-0x000007FEF54C4000-memory.dmp

Filesize
4KB

Download
memory/2356-1-0x00000000011D0000-0x00000000011FE000-memory.dmp

Filesize
184KB

Download
memory/2356-2-0x000007FEF54C3000-0x000007FEF54C4000-memory.dmp

Filesize
4KB

Download