arrowrat | 8a572189d449be581188db033f77172d4f84649cdddaa81e8f00390e8e71a987

Analysis

max time kernel
146s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
04-05-2023 12:31

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General

Target

arrow/5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
Size

138KB
MD5

2f73fdfb8140276968f2c1b358e5edf0
SHA1

160ec42cd31c98fdd91c8a837be32757b2b9af92
SHA256

5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c
SHA512

65c2ac40557d94cf715d720a3774547f10253fe00071cd6e1824f6304f02187e26184b7c064e8c5d0526bd8650e5854bae283cb080ea17ef3d007f28b0d477f3
SSDEEP

3072:+bvY5mz7Bqh1v59Y08mAjs0Ltel+qOeJHlpV8b+Y/Yh:+bvwS7BqjjYHdrqkL/

Score

10^/10

arrowrat ojg36c persistence rat

Malware Config

Extracted

Family

arrowrat

Botnet

OJG36C

mayo21.duckdns.org:2158

Mutex

NT7WTE

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

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe

Suspicious use of AdjustPrivilegeToken 16 IoCs

description	pid	Process
Token: SeDebugPrivilege	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
Token: SeShutdownPrivilege	876	explorer.exe
Token: SeShutdownPrivilege	876	explorer.exe
Token: SeShutdownPrivilege	876	explorer.exe
Token: SeShutdownPrivilege	876	explorer.exe
Token: SeShutdownPrivilege	876	explorer.exe
Token: SeShutdownPrivilege	876	explorer.exe
Token: SeShutdownPrivilege	876	explorer.exe
Token: SeShutdownPrivilege	876	explorer.exe
Token: 33	760	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	760	AUDIODG.EXE
Token: 33	760	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	760	AUDIODG.EXE
Token: SeShutdownPrivilege	876	explorer.exe
Token: SeShutdownPrivilege	876	explorer.exe
Token: SeShutdownPrivilege	876	explorer.exe

Suspicious use of FindShellTrayWindow 27 IoCs

pid	Process
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe

Suspicious use of SendNotifyMessage 17 IoCs

pid	Process
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe
876	explorer.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 920 wrote to memory of 876	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	28
PID 920 wrote to memory of 876	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	28
PID 920 wrote to memory of 876	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	28
PID 920 wrote to memory of 1504	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	29
PID 920 wrote to memory of 1504	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	29
PID 920 wrote to memory of 1504	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	29
PID 920 wrote to memory of 1504	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	29
PID 920 wrote to memory of 432	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	30
PID 920 wrote to memory of 432	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	30
PID 920 wrote to memory of 432	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	30
PID 920 wrote to memory of 432	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	30
PID 920 wrote to memory of 1500	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	32
PID 920 wrote to memory of 1500	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	32
PID 920 wrote to memory of 1500	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	32
PID 920 wrote to memory of 1500	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	32
PID 920 wrote to memory of 1624	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	31
PID 920 wrote to memory of 1624	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	31
PID 920 wrote to memory of 1624	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	31
PID 920 wrote to memory of 1624	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	31
PID 920 wrote to memory of 1916	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	33
PID 920 wrote to memory of 1916	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	33
PID 920 wrote to memory of 1916	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	33
PID 920 wrote to memory of 1916	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	33
PID 920 wrote to memory of 528	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	34
PID 920 wrote to memory of 528	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	34
PID 920 wrote to memory of 528	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	34
PID 920 wrote to memory of 528	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	34
PID 920 wrote to memory of 696	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	35
PID 920 wrote to memory of 696	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	35
PID 920 wrote to memory of 696	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	35
PID 920 wrote to memory of 696	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	35
PID 920 wrote to memory of 652	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	36
PID 920 wrote to memory of 652	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	36
PID 920 wrote to memory of 652	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	36
PID 920 wrote to memory of 652	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	36
PID 920 wrote to memory of 588	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	37
PID 920 wrote to memory of 588	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	37
PID 920 wrote to memory of 588	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	37
PID 920 wrote to memory of 588	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	37
PID 920 wrote to memory of 580	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	38
PID 920 wrote to memory of 580	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	38
PID 920 wrote to memory of 580	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	38
PID 920 wrote to memory of 580	920	5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe	38
PID 876 wrote to memory of 1816	876	explorer.exe	39
PID 876 wrote to memory of 1816	876	explorer.exe	39
PID 876 wrote to memory of 1816	876	explorer.exe	39

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\arrow\5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe
"C:\Users\Admin\AppData\Local\Temp\arrow\5a45e4a32a4f2081b33dee2ab94eb3ebb4afafe0bd8f5b76e93dfe975c4a607c.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:920
- 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:876
- - C:\Windows\system32\ctfmon.exe
    ctfmon.exe
    3⤵
    PID:1816
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" OJG36C mayo21.duckdns.org 2158 NT7WTE
  2⤵
  PID:1504
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" OJG36C mayo21.duckdns.org 2158 NT7WTE
  2⤵
  PID:432
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" OJG36C mayo21.duckdns.org 2158 NT7WTE
  2⤵
  PID:1624
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" OJG36C mayo21.duckdns.org 2158 NT7WTE
  2⤵
  PID:1500
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" OJG36C mayo21.duckdns.org 2158 NT7WTE
  2⤵
  PID:1916
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" OJG36C mayo21.duckdns.org 2158 NT7WTE
  2⤵
  PID:528
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" OJG36C mayo21.duckdns.org 2158 NT7WTE
  2⤵
  PID:696
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" OJG36C mayo21.duckdns.org 2158 NT7WTE
  2⤵
  PID:652
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" OJG36C mayo21.duckdns.org 2158 NT7WTE
  2⤵
  PID:588
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" OJG36C mayo21.duckdns.org 2158 NT7WTE
  2⤵
  PID:580

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x498
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:760

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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/876-55-0x0000000003C60000-0x0000000003C61000-memory.dmp

Filesize
4KB

Download
memory/876-56-0x0000000003C60000-0x0000000003C61000-memory.dmp

Filesize
4KB

Download
memory/876-60-0x00000000027B0000-0x00000000027C0000-memory.dmp

Filesize
64KB

Download
memory/920-54-0x0000000000900000-0x0000000000928000-memory.dmp

Filesize
160KB

Download