asyncrat | 7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9

Analysis

max time kernel
7s
max time network
151s
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, 17:58

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General

Target
7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
Size 45KB
Sample260803-wj9bmaxvev
SHA256 7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9
MD5 5dd7927a33e83e953c09f50c932d5833
SHA1 90bb08be8a20b91bb2feb54605c4b79bb62990ed
SHA512 8b9214262ea3b855a0e1b2550035cde21d6a70ad646a2b82c9235626fd1ba2adcb32135d3090551d2ce3986d79f88d6d7247b68781dcd82559fd67329f551958
SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qFD3xY6yZoOPI5zjbVgo3iIRr7vLySwPQ5zTCuIBDZW:cu7e5TH2A22uPo353byoSINvLZ/5zTA0
TLSH
T1B6232A003BE8812BF2BE4FB899F25245867AF6733603D5491CC452DB5713BC69A426FE
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
downadup.xcavengon.click:80
downadup.xcavengon.click:22
downadup.xcavengon.click:8080
downadup.xcavengon.click:8880
downadup.xcavengon.click:2052
downadup.xcavengon.click:2082
downadup.xcavengon.click:2086
downadup.xcavengon.click:2095
downadup.xcavengon.click:443
downadup.xcavengon.click:2053
downadup.xcavengon.click:2083
downadup.xcavengon.click:2087
downadup.xcavengon.click:2096
downadup.xcavengon.click:8443
invasive.xcavengon.click:80
invasive.xcavengon.click:22
invasive.xcavengon.click:8080
invasive.xcavengon.click:8880
invasive.xcavengon.click:2052
invasive.xcavengon.click:2082
invasive.xcavengon.click:2086
invasive.xcavengon.click:2095
invasive.xcavengon.click:443
invasive.xcavengon.click:2053
invasive.xcavengon.click:2083
invasive.xcavengon.click:2087
invasive.xcavengon.click:2096
invasive.xcavengon.click:8443

Mutex

tzvvT8aBnyZK

Attributes

delay
0
install
true
install_file
71gsk.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/0x000e00000001c521-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2000	71gsk.exe
4924	71gsk.exe

Outbound SSH connection to public host 2 TTPs 4 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	13	172.67.189.217:22
SSH destination	4	104.21.10.8:22
SSH destination	7	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
4196	cmd.exe
352	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	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	71gsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	71gsk.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
692	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
5588	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
Token: SeDebugPrivilege	2000	71gsk.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5904 wrote to memory of 4196	5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe	89
PID 5904 wrote to memory of 352	5904	7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe	91
PID 4196 wrote to memory of 5588	4196	cmd.exe	93
PID 352 wrote to memory of 692	352	cmd.exe	94
PID 352 wrote to memory of 4924	352	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe
"C:\Users\Admin\AppData\Local\Temp\7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "71gsk" /tr '"C:\Users\Admin\AppData\Roaming\71gsk.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4196
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "71gsk" /tr '"C:\Users\Admin\AppData\Roaming\71gsk.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5588
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp79BA.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:352
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:692
- - C:\Users\Admin\AppData\Roaming\71gsk.exe
    "C:\Users\Admin\AppData\Roaming\71gsk.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4924

C:\Users\Admin\AppData\Roaming\71gsk.exe
"C:\Users\Admin\AppData\Roaming\71gsk.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2000

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

tmp79BA.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp79BA.tmp.bat
Size 149B
SHA256 944bafd34122a3d477b17d3cb4a4fc0ad4c40788ae811d8f398ef9ba3ee751e3
MD5 dac877ca698236d20f07477c15229b9d
SHA1 d356daf360193d29310bc40b0af980ecf242d021
SHA512 342e12e966f3598e7e6016c93ddeac8be63a334b5fdb7a07c7ae610f223579e38dde06aeb79d7b7e4765833732c6a1a9cd1bcbf2c01d4604204654372b89d8f0
TLSH
T1DCC02B4255C9EB1E6C05141302FAD49C91767C1D3F48BF40D704444E6280448F8D934A
MD5 SHA1 SHA512 TLSH

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71gsk.exe

Path C:\Users\Admin\AppData\Roaming\71gsk.exe
Size 45KB
SHA256 7f52e8b958e919b93898026b48129f3b4f2ab1c4999d64148b0a6f85c7d2b8c9
MD5 5dd7927a33e83e953c09f50c932d5833
SHA1 90bb08be8a20b91bb2feb54605c4b79bb62990ed
SHA512 8b9214262ea3b855a0e1b2550035cde21d6a70ad646a2b82c9235626fd1ba2adcb32135d3090551d2ce3986d79f88d6d7247b68781dcd82559fd67329f551958
SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qFD3xY6yZoOPI5zjbVgo3iIRr7vLySwPQ5zTCuIBDZW:cu7e5TH2A22uPo353byoSINvLZ/5zTA0
TLSH
T1B6232A003BE8812BF2BE4FB899F25245867AF6733603D5491CC452DB5713BC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2000-12-0x0000000074990000-0x000000007514C000-memory.dmp

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memory/2000-14-0x0000000074990000-0x000000007514C000-memory.dmp

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memory/5904-0-0x00000000749B2000-0x00000000749B3000-memory.dmp

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memory/5904-1-0x00000000000E0000-0x00000000000F2000-memory.dmp

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memory/5904-2-0x00000000749A0000-0x000000007515C000-memory.dmp

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memory/5904-3-0x0000000004BD0000-0x0000000004C6C000-memory.dmp

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memory/5904-8-0x00000000749A0000-0x000000007515C000-memory.dmp

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