arrowrat | 9f46555944110c0b982e05620a58e6a3828fa6ad8e8dd8f55894e25150207a5e

Analysis

max time kernel
129s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/09/2023, 02:00

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General

Target

869e6e56d6c9849420442213a468c9fc.exe
Size

138KB
MD5

869e6e56d6c9849420442213a468c9fc
SHA1

4f7e64126cd4adf324ee989ffa1efb5870178074
SHA256

9f46555944110c0b982e05620a58e6a3828fa6ad8e8dd8f55894e25150207a5e
SHA512

db12472b8d74c6f0feafc52d0233f725561de54c6d23687f48b5d8a16c211c20f4abf6bc8057246cc048c958f15f921dff664af49e0c9bb18911839a47ac0a85
SSDEEP

3072:Kbvr5mz7Bqh1v59Y08mAjs0Ltel+qOeJHlpV8b+Y/Yd:Kbv9S7BqjjYHdrqkL/

Score

10^/10

arrowrat 5t74s3 persistence rat

Malware Config

Extracted

Family

arrowrat

Botnet

5T74S3

febbit3.ddns.net:1338

Mutex

Y5EJ2C

Signatures

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

Modifies Installed Components in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2744	1448	WerFault.exe	27

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-86725733-3001458681-3405935542-1000_Classes\Local Settings	explorer.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe
1448	869e6e56d6c9849420442213a468c9fc.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	1448	869e6e56d6c9849420442213a468c9fc.exe
Token: SeShutdownPrivilege	2448	explorer.exe
Token: SeShutdownPrivilege	2448	explorer.exe
Token: SeShutdownPrivilege	2448	explorer.exe
Token: SeShutdownPrivilege	2448	explorer.exe
Token: SeShutdownPrivilege	2448	explorer.exe
Token: SeShutdownPrivilege	2448	explorer.exe
Token: SeShutdownPrivilege	2448	explorer.exe
Token: SeShutdownPrivilege	2448	explorer.exe
Token: SeShutdownPrivilege	2448	explorer.exe
Token: SeShutdownPrivilege	2448	explorer.exe
Token: SeShutdownPrivilege	2448	explorer.exe

Suspicious use of FindShellTrayWindow 27 IoCs

pid	Process
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe

Suspicious use of SendNotifyMessage 17 IoCs

pid	Process
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe
2448	explorer.exe

Suspicious use of WriteProcessMemory 49 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 2448	1448	869e6e56d6c9849420442213a468c9fc.exe	28
PID 1448 wrote to memory of 2448	1448	869e6e56d6c9849420442213a468c9fc.exe	28
PID 1448 wrote to memory of 2448	1448	869e6e56d6c9849420442213a468c9fc.exe	28
PID 2448 wrote to memory of 2392	2448	explorer.exe	30
PID 2448 wrote to memory of 2392	2448	explorer.exe	30
PID 2448 wrote to memory of 2392	2448	explorer.exe	30
PID 1448 wrote to memory of 3012	1448	869e6e56d6c9849420442213a468c9fc.exe	29
PID 1448 wrote to memory of 3012	1448	869e6e56d6c9849420442213a468c9fc.exe	29
PID 1448 wrote to memory of 3012	1448	869e6e56d6c9849420442213a468c9fc.exe	29
PID 1448 wrote to memory of 3012	1448	869e6e56d6c9849420442213a468c9fc.exe	29
PID 1448 wrote to memory of 2224	1448	869e6e56d6c9849420442213a468c9fc.exe	31
PID 1448 wrote to memory of 2224	1448	869e6e56d6c9849420442213a468c9fc.exe	31
PID 1448 wrote to memory of 2224	1448	869e6e56d6c9849420442213a468c9fc.exe	31
PID 1448 wrote to memory of 2224	1448	869e6e56d6c9849420442213a468c9fc.exe	31
PID 1448 wrote to memory of 2632	1448	869e6e56d6c9849420442213a468c9fc.exe	32
PID 1448 wrote to memory of 2632	1448	869e6e56d6c9849420442213a468c9fc.exe	32
PID 1448 wrote to memory of 2632	1448	869e6e56d6c9849420442213a468c9fc.exe	32
PID 1448 wrote to memory of 2632	1448	869e6e56d6c9849420442213a468c9fc.exe	32
PID 1448 wrote to memory of 2640	1448	869e6e56d6c9849420442213a468c9fc.exe	33
PID 1448 wrote to memory of 2640	1448	869e6e56d6c9849420442213a468c9fc.exe	33
PID 1448 wrote to memory of 2640	1448	869e6e56d6c9849420442213a468c9fc.exe	33
PID 1448 wrote to memory of 2640	1448	869e6e56d6c9849420442213a468c9fc.exe	33
PID 1448 wrote to memory of 2716	1448	869e6e56d6c9849420442213a468c9fc.exe	34
PID 1448 wrote to memory of 2716	1448	869e6e56d6c9849420442213a468c9fc.exe	34
PID 1448 wrote to memory of 2716	1448	869e6e56d6c9849420442213a468c9fc.exe	34
PID 1448 wrote to memory of 2716	1448	869e6e56d6c9849420442213a468c9fc.exe	34
PID 1448 wrote to memory of 2720	1448	869e6e56d6c9849420442213a468c9fc.exe	35
PID 1448 wrote to memory of 2720	1448	869e6e56d6c9849420442213a468c9fc.exe	35
PID 1448 wrote to memory of 2720	1448	869e6e56d6c9849420442213a468c9fc.exe	35
PID 1448 wrote to memory of 2720	1448	869e6e56d6c9849420442213a468c9fc.exe	35
PID 1448 wrote to memory of 2740	1448	869e6e56d6c9849420442213a468c9fc.exe	36
PID 1448 wrote to memory of 2740	1448	869e6e56d6c9849420442213a468c9fc.exe	36
PID 1448 wrote to memory of 2740	1448	869e6e56d6c9849420442213a468c9fc.exe	36
PID 1448 wrote to memory of 2740	1448	869e6e56d6c9849420442213a468c9fc.exe	36
PID 1448 wrote to memory of 2772	1448	869e6e56d6c9849420442213a468c9fc.exe	37
PID 1448 wrote to memory of 2772	1448	869e6e56d6c9849420442213a468c9fc.exe	37
PID 1448 wrote to memory of 2772	1448	869e6e56d6c9849420442213a468c9fc.exe	37
PID 1448 wrote to memory of 2772	1448	869e6e56d6c9849420442213a468c9fc.exe	37
PID 1448 wrote to memory of 2712	1448	869e6e56d6c9849420442213a468c9fc.exe	39
PID 1448 wrote to memory of 2712	1448	869e6e56d6c9849420442213a468c9fc.exe	39
PID 1448 wrote to memory of 2712	1448	869e6e56d6c9849420442213a468c9fc.exe	39
PID 1448 wrote to memory of 2712	1448	869e6e56d6c9849420442213a468c9fc.exe	39
PID 1448 wrote to memory of 2648	1448	869e6e56d6c9849420442213a468c9fc.exe	38
PID 1448 wrote to memory of 2648	1448	869e6e56d6c9849420442213a468c9fc.exe	38
PID 1448 wrote to memory of 2648	1448	869e6e56d6c9849420442213a468c9fc.exe	38
PID 1448 wrote to memory of 2648	1448	869e6e56d6c9849420442213a468c9fc.exe	38
PID 1448 wrote to memory of 2744	1448	869e6e56d6c9849420442213a468c9fc.exe	40
PID 1448 wrote to memory of 2744	1448	869e6e56d6c9849420442213a468c9fc.exe	40
PID 1448 wrote to memory of 2744	1448	869e6e56d6c9849420442213a468c9fc.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\869e6e56d6c9849420442213a468c9fc.exe
"C:\Users\Admin\AppData\Local\Temp\869e6e56d6c9849420442213a468c9fc.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Windows\explorer.exe
  "C:\Windows\explorer.exe"
  2⤵
  - Modifies Installed Components in the registry
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2448
- - C:\Windows\system32\ctfmon.exe
    ctfmon.exe
    3⤵
    PID:2392
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 5T74S3 febbit3.ddns.net 1338 Y5EJ2C
  2⤵
  PID:3012
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 5T74S3 febbit3.ddns.net 1338 Y5EJ2C
  2⤵
  PID:2224
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 5T74S3 febbit3.ddns.net 1338 Y5EJ2C
  2⤵
  PID:2632
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 5T74S3 febbit3.ddns.net 1338 Y5EJ2C
  2⤵
  PID:2640
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 5T74S3 febbit3.ddns.net 1338 Y5EJ2C
  2⤵
  PID:2716
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 5T74S3 febbit3.ddns.net 1338 Y5EJ2C
  2⤵
  PID:2720
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 5T74S3 febbit3.ddns.net 1338 Y5EJ2C
  2⤵
  PID:2740
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 5T74S3 febbit3.ddns.net 1338 Y5EJ2C
  2⤵
  PID:2772
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 5T74S3 febbit3.ddns.net 1338 Y5EJ2C
  2⤵
  PID:2648
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" 5T74S3 febbit3.ddns.net 1338 Y5EJ2C
  2⤵
  PID:2712
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1448 -s 664
  2⤵
  - Program crash
  PID:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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/1448-0-0x00000000003D0000-0x00000000003F8000-memory.dmp

Filesize
160KB

Download
memory/1448-1-0x000007FEF5990000-0x000007FEF637C000-memory.dmp

Filesize
9.9MB

Download
memory/1448-3-0x000007FEF5990000-0x000007FEF637C000-memory.dmp

Filesize
9.9MB

Download
memory/2448-2-0x0000000003D90000-0x0000000003D91000-memory.dmp

Filesize
4KB

Download
memory/2448-4-0x0000000003D90000-0x0000000003D91000-memory.dmp

Filesize
4KB

Download
memory/2448-8-0x00000000026B0000-0x00000000026C0000-memory.dmp

Filesize
64KB

Download