asyncrat | 7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d

Analysis

max time kernel
148s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/08/2026, 21:29

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General

Target
7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
Size 45KB
Sample260830-1b6b8aaj71
SHA256 7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d
MD5 709193d225d50ce3271ed1450483e9ff
SHA1 8651f13728a9edd19e196d44744381c542c6c144
SHA512 40852248a400deb095b5d303f8c88daca1e3049a47ece27abe94c6cf444043559fe0e7af2a7d8b501f3be16061c89a0ff78211bcdc4015810aaaabda6d09e30f
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q9Xozfy3CKPItSjbVgX3iD1YPQ6QKBDZ8x:0uPrpT/qY2ZTRt+byXSGPVd8x
TLSH
T199231A003BE9C127F2BE8F789DF26145467AE6633A03D6491CC4119B5713FC69A42AFE
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

zorvec.name:80
zorvec.name:22
zorvec.name:8080
zorvec.name:8880
zorvec.name:2052
zorvec.name:2082
zorvec.name:2086
zorvec.name:2095
zorvec.name:443
zorvec.name:2053
zorvec.name:2083
zorvec.name:2087
zorvec.name:2096
zorvec.name:8443
www.zorvec.name:80
www.zorvec.name:22
www.zorvec.name:8080
www.zorvec.name:8880
www.zorvec.name:2052
www.zorvec.name:2082
www.zorvec.name:2086
www.zorvec.name:2095
www.zorvec.name:443
www.zorvec.name:2053
www.zorvec.name:2083
www.zorvec.name:2087
www.zorvec.name:2096
www.zorvec.name:8443
gootloader.zorvec.name:80
gootloader.zorvec.name:22
gootloader.zorvec.name:8080
gootloader.zorvec.name:8880
gootloader.zorvec.name:2052
gootloader.zorvec.name:2082
gootloader.zorvec.name:2086
gootloader.zorvec.name:2095
gootloader.zorvec.name:443
gootloader.zorvec.name:2053
gootloader.zorvec.name:2083
gootloader.zorvec.name:2087
gootloader.zorvec.name:2096
gootloader.zorvec.name:8443
industroyer.zorvec.name:80
industroyer.zorvec.name:22
industroyer.zorvec.name:8080
industroyer.zorvec.name:8880
industroyer.zorvec.name:2052
industroyer.zorvec.name:2082
industroyer.zorvec.name:2086
industroyer.zorvec.name:2095
industroyer.zorvec.name:443
industroyer.zorvec.name:2053
industroyer.zorvec.name:2083
industroyer.zorvec.name:2087
industroyer.zorvec.name:2096
industroyer.zorvec.name:8443
malware.zorvec.name:80
malware.zorvec.name:22
malware.zorvec.name:8080
malware.zorvec.name:8880
malware.zorvec.name:2052
malware.zorvec.name:2082
malware.zorvec.name:2086
malware.zorvec.name:2095
malware.zorvec.name:443
malware.zorvec.name:2053
malware.zorvec.name:2083
malware.zorvec.name:2087
malware.zorvec.name:2096
malware.zorvec.name:8443

Mutex

VNDUhO3K1PUf

Attributes

delay
0
install
true
install_file
k8v18va.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
1156	k8v18va.exe
2660	k8v18va.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	pid	Process
SSH destination	14	104.21.28.44:22		Process not Found
SSH destination	7	172.67.144.58:22	1156	k8v18va.exe
SSH destination	9	104.21.28.44:22		Process not Found
SSH destination	13	172.67.144.58:22		Process not Found

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
3520	cmd.exe
3820	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	k8v18va.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	k8v18va.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.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
4884	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
5036	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
Token: SeDebugPrivilege	1156	k8v18va.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 3820	2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe	89
PID 2760 wrote to memory of 3520	2760	7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe	90
PID 3820 wrote to memory of 5036	3820	cmd.exe	93
PID 3520 wrote to memory of 4884	3520	cmd.exe	94
PID 3520 wrote to memory of 2660	3520	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe
"C:\Users\Admin\AppData\Local\Temp\7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "k8v18va" /tr '"C:\Users\Admin\AppData\Roaming\k8v18va.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3820
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "k8v18va" /tr '"C:\Users\Admin\AppData\Roaming\k8v18va.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5036
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpC99.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3520
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4884
- - C:\Users\Admin\AppData\Roaming\k8v18va.exe
    "C:\Users\Admin\AppData\Roaming\k8v18va.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2660

C:\Users\Admin\AppData\Roaming\k8v18va.exe
"C:\Users\Admin\AppData\Roaming\k8v18va.exe"
1⤵
- Executes dropped EXE
- Outbound SSH connection to public host
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1156

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

tmpC99.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpC99.tmp.bat
Size 150B
SHA256 9a7dcbf865610ff7bef47f8e4e4e288395fa85b5c618e5478088aa8e672820f6
MD5 4dbfdefb186b08b1d36267228e60ff9a
SHA1 0b3db7b98e5a51b8295a10c7800a88ea65779687
SHA512 41e57f6ffb9ad1af9af52ce433cdf8cf68a1f1ea5934e099246f509423cd42d340578655d9aa4197f71ef1d27163d989a71a960dc8cebe0aba48f9fc5521ff79
TLSH
T153C02B4265C6EE5F3A0554532AFED58C9172AC6D3F44BF00C704400D1680C98F8DD385
MD5 SHA1 SHA512 TLSH

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k8v18va.exe

Path C:\Users\Admin\AppData\Roaming\k8v18va.exe
Size 45KB
SHA256 7262c3ef07374a48ef05cf5c7540ebeb680879da2e9e8c14c892cd2c467af96d
MD5 709193d225d50ce3271ed1450483e9ff
SHA1 8651f13728a9edd19e196d44744381c542c6c144
SHA512 40852248a400deb095b5d303f8c88daca1e3049a47ece27abe94c6cf444043559fe0e7af2a7d8b501f3be16061c89a0ff78211bcdc4015810aaaabda6d09e30f
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q9Xozfy3CKPItSjbVgX3iD1YPQ6QKBDZ8x:0uPrpT/qY2ZTRt+byXSGPVd8x
TLSH
T199231A003BE9C127F2BE8F789DF26145467AE6633A03D6491CC4119B5713FC69A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1156-12-0x0000000074470000-0x0000000074C2C000-memory.dmp

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memory/1156-14-0x0000000074470000-0x0000000074C2C000-memory.dmp

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memory/2760-0-0x0000000074682000-0x0000000074683000-memory.dmp

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memory/2760-1-0x00000000005A0000-0x00000000005B2000-memory.dmp

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memory/2760-2-0x0000000074670000-0x0000000074E2C000-memory.dmp

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memory/2760-3-0x0000000005100000-0x000000000519C000-memory.dmp

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memory/2760-8-0x0000000074670000-0x0000000074E2C000-memory.dmp

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