asyncrat | a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b

Analysis

max time kernel
148s
max time network
155s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
03/08/2026, 17:10

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General

Target
a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
Size 45KB
Sample260803-vprhbstfld
SHA256 a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b
MD5 40d05516be345029502d6f80b6a7ad73
SHA1 5eabc760b1d3cacab6ef9c425eb9ad0467868c9e
SHA512 72ff4dd9356859fa0fd918b6e03b546c2185ae5aa519d3485206dc9e8345c9babbfabac49db2369db33912b3bfbe753b57869dad78ec2e1321b5f148499f4d0f
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q9q9Yq3q3hOPI2zjbwgX3ilLhug8VbW6gnEBDZ8x:0uPrpT/qY2HaCq323b3XSlLEHd8x
TLSH
T1CC233C003BE9C12BF2BE4B789CF26145867AF5633603D64A1CC451DB5623FC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

xcavengon.click:80
xcavengon.click:22
xcavengon.click:8080
xcavengon.click:8880
xcavengon.click:2052
xcavengon.click:2082
xcavengon.click:2086
xcavengon.click:2095
xcavengon.click:443
xcavengon.click:2053
xcavengon.click:2083
xcavengon.click:2087
xcavengon.click:2096
xcavengon.click:8443
www.xcavengon.click:80
www.xcavengon.click:22
www.xcavengon.click:8080
www.xcavengon.click:8880
www.xcavengon.click:2052
www.xcavengon.click:2082
www.xcavengon.click:2086
www.xcavengon.click:2095
www.xcavengon.click:443
www.xcavengon.click:2053
www.xcavengon.click:2083
www.xcavengon.click:2087
www.xcavengon.click:2096
www.xcavengon.click:8443
malware.xcavengon.click:80
malware.xcavengon.click:22
malware.xcavengon.click:8080
malware.xcavengon.click:8880
malware.xcavengon.click:2052
malware.xcavengon.click:2082
malware.xcavengon.click:2086
malware.xcavengon.click:2095
malware.xcavengon.click:443
malware.xcavengon.click:2053
malware.xcavengon.click:2083
malware.xcavengon.click:2087
malware.xcavengon.click:2096
malware.xcavengon.click:8443
sasser.xcavengon.click:80
sasser.xcavengon.click:22
sasser.xcavengon.click:8080
sasser.xcavengon.click:8880
sasser.xcavengon.click:2052
sasser.xcavengon.click:2082
sasser.xcavengon.click:2086
sasser.xcavengon.click:2095
sasser.xcavengon.click:443
sasser.xcavengon.click:2053
sasser.xcavengon.click:2083
sasser.xcavengon.click:2087
sasser.xcavengon.click:2096
sasser.xcavengon.click:8443

Mutex

WpxdXwNHFhtA

Attributes

delay
0
install
true
install_file
8n5nj4g.exe
install_folder
%AppData%

aes.plain

Signatures

Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x0005000000016b3f-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4100	8n5nj4g.exe
1356	8n5nj4g.exe

Outbound SSH connection to public host 2 TTPs 2 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc
SSH destination	11	172.67.189.217:22
SSH destination	12	104.21.10.8:22

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4128	cmd.exe
3300	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8n5nj4g.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8n5nj4g.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
1272	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
5332	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 4128	2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe	89
PID 2624 wrote to memory of 3300	2624	a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe	91
PID 4128 wrote to memory of 5332	4128	cmd.exe	93
PID 3300 wrote to memory of 1272	3300	cmd.exe	94
PID 3300 wrote to memory of 1356	3300	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe
"C:\Users\Admin\AppData\Local\Temp\a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "8n5nj4g" /tr '"C:\Users\Admin\AppData\Roaming\8n5nj4g.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4128
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "8n5nj4g" /tr '"C:\Users\Admin\AppData\Roaming\8n5nj4g.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5332
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7100.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3300
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1272
- - C:\Users\Admin\AppData\Roaming\8n5nj4g.exe
    "C:\Users\Admin\AppData\Roaming\8n5nj4g.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1356

C:\Users\Admin\AppData\Roaming\8n5nj4g.exe
"C:\Users\Admin\AppData\Roaming\8n5nj4g.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4100

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

T1572

Exfiltration

Impact

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Downloads

tmp7100.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp7100.tmp.bat
Size 151B
SHA256 7f471f9606d6d56673a0f17c4d63ea223c8e9e5fedddace25c494381b9439f84
MD5 6c0fa4e88005e051b694b261dfac7c39
SHA1 b592751c534547f839e517c242713e3463aae741
SHA512 1d06b1caf8569944841b031f953acf6e6b6725a8abf2041ab35edfb5495b609337a7dd847eaf4b31235f875f3c0bc1a0360860bb9a632694cca5d22ae79a69e5
TLSH
T145C02B6251C5EE0F2805182712FAD4CC91B66C2A3F40BB40CB4C440E1390448F4D9341
MD5 SHA1 SHA512 TLSH

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8n5nj4g.exe

Path C:\Users\Admin\AppData\Roaming\8n5nj4g.exe
Size 45KB
SHA256 a6f8bd6daf622769d7d3b6ce65bc938a6fb1a7e7e05e50f5a5f1048d22223b5b
MD5 40d05516be345029502d6f80b6a7ad73
SHA1 5eabc760b1d3cacab6ef9c425eb9ad0467868c9e
SHA512 72ff4dd9356859fa0fd918b6e03b546c2185ae5aa519d3485206dc9e8345c9babbfabac49db2369db33912b3bfbe753b57869dad78ec2e1321b5f148499f4d0f
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q9q9Yq3q3hOPI2zjbwgX3ilLhug8VbW6gnEBDZ8x:0uPrpT/qY2HaCq323b3XSlLEHd8x
TLSH
T1CC233C003BE9C12BF2BE4B789CF26145867AF5633603D64A1CC451DB5623FC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2624-0-0x00000000743C2000-0x00000000743C3000-memory.dmp

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memory/2624-1-0x0000000000140000-0x0000000000152000-memory.dmp

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memory/2624-2-0x00000000743B0000-0x0000000074B6C000-memory.dmp

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memory/2624-3-0x0000000004B90000-0x0000000004C2C000-memory.dmp

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memory/2624-9-0x00000000743B0000-0x0000000074B6C000-memory.dmp

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memory/4100-12-0x00000000743B0000-0x0000000074B6C000-memory.dmp

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memory/4100-14-0x00000000743B0000-0x0000000074B6C000-memory.dmp

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