asyncrat | 4bd4decfdfab49b938076e474829270b703983975ffbde03dd1a613f2db5ce67

Analysis

max time kernel
148s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
21/08/2026, 13:00

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General

Target
4bd4decfdfab49b938076e474829270b703983975ffbde03dd1a613f2db5ce67.exe
Size 45KB
Sample260821-p85amseq7t
SHA256 4bd4decfdfab49b938076e474829270b703983975ffbde03dd1a613f2db5ce67
MD5 a4cd2ed1d263eb5a0a10a5af8e33013a
SHA1 da541641846cfa4159fb94409b89c228eec4fb54
SHA512 72750448558bab910dc09c8a42dad771550ce5838191cc024a752d926d516b1913e3acd646ad81822e3363719475bed2df25efe3b396c427bc149f0ec2c4be43
SSDEEP 768:cu6RaepTPYzbs8WU+Xaamo2q1emaPol53APIkzjblgX3iITWbAJUH2wZzgBDZUx:cu6YepTPso2vfob3lk3biXSIaYUHmdUx
TLSH
T118232A003BE9812BF2BE4F78A9F26245467AF2636603D54D1CC451DB5723FC29A426ED
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
formbook.zorvec.name:80
formbook.zorvec.name:22
formbook.zorvec.name:8080
formbook.zorvec.name:8880
formbook.zorvec.name:2052
formbook.zorvec.name:2082
formbook.zorvec.name:2086
formbook.zorvec.name:2095
formbook.zorvec.name:443
formbook.zorvec.name:2053
formbook.zorvec.name:2083
formbook.zorvec.name:2087
formbook.zorvec.name:2096
formbook.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
trickbot.zorvec.name:80
trickbot.zorvec.name:22
trickbot.zorvec.name:8080
trickbot.zorvec.name:8880
trickbot.zorvec.name:2052
trickbot.zorvec.name:2082
trickbot.zorvec.name:2086
trickbot.zorvec.name:2095
trickbot.zorvec.name:443
trickbot.zorvec.name:2053
trickbot.zorvec.name:2083
trickbot.zorvec.name:2087
trickbot.zorvec.name:2096
trickbot.zorvec.name:8443
remote.zorvec.name:80
remote.zorvec.name:22
remote.zorvec.name:8080
remote.zorvec.name:8880
remote.zorvec.name:2052
remote.zorvec.name:2082
remote.zorvec.name:2086
remote.zorvec.name:2095
remote.zorvec.name:443
remote.zorvec.name:2053
remote.zorvec.name:2083
remote.zorvec.name:2087
remote.zorvec.name:2096
remote.zorvec.name:8443

Mutex

i0EX6jH3HSCY

Attributes

delay
0
install
true
install_file
97qj79lx.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/0x001c00000001c4c8-10.dat	family_asyncrat

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	10	104.21.28.44:22
SSH destination	12	172.67.144.58:22

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
4576	cmd.exe
5672	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	4bd4decfdfab49b938076e474829270b703983975ffbde03dd1a613f2db5ce67.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4880	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
4700	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\4bd4decfdfab49b938076e474829270b703983975ffbde03dd1a613f2db5ce67.exe
"C:\Users\Admin\AppData\Local\Temp\4bd4decfdfab49b938076e474829270b703983975ffbde03dd1a613f2db5ce67.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3276
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "97qj79lx" /tr '"C:\Users\Admin\AppData\Roaming\97qj79lx.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  PID:4576
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "97qj79lx" /tr '"C:\Users\Admin\AppData\Roaming\97qj79lx.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4700
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp989C.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  PID:5672
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4880
- - C:\Users\Admin\AppData\Roaming\97qj79lx.exe
    "C:\Users\Admin\AppData\Roaming\97qj79lx.exe"
    3⤵
    PID:2368

C:\Users\Admin\AppData\Roaming\97qj79lx.exe
"C:\Users\Admin\AppData\Roaming\97qj79lx.exe"
1⤵
PID:548

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

T1572

Exfiltration

Impact

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Downloads

tmp989C.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp989C.tmp.bat
Size 152B
SHA256 c667cef870c0837fec52fd86ede381b460d431a2895e48a5824615199e07ab89
MD5 2070e00d18704c0bfb8ef1c187f7cabf
SHA1 f09fc44f874b187ba77e8bf68a0dd40b17cc7e77
SHA512 4bcad96aaad49dbfcd5fbd161aeeab41066616a2eeb1497d1521fe0e96bfb1b34e96bcd46a41a6beea45c9cb20617689bab70d27d4f346dd6aac76640f59d368
TLSH
T1B4C02B8391C5EA0F290628231BFAD89DA172AC1D3F40FB40C708C80D17C085DF0D9381
MD5 SHA1 SHA512 TLSH

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97qj79lx.exe

Path C:\Users\Admin\AppData\Roaming\97qj79lx.exe
Size 45KB
SHA256 4bd4decfdfab49b938076e474829270b703983975ffbde03dd1a613f2db5ce67
MD5 a4cd2ed1d263eb5a0a10a5af8e33013a
SHA1 da541641846cfa4159fb94409b89c228eec4fb54
SHA512 72750448558bab910dc09c8a42dad771550ce5838191cc024a752d926d516b1913e3acd646ad81822e3363719475bed2df25efe3b396c427bc149f0ec2c4be43
SSDEEP 768:cu6RaepTPYzbs8WU+Xaamo2q1emaPol53APIkzjblgX3iITWbAJUH2wZzgBDZUx:cu6YepTPso2vfob3lk3biXSIaYUHmdUx
TLSH
T118232A003BE9812BF2BE4F78A9F26245467AF2636603D54D1CC451DB5723FC29A426ED
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/548-12-0x00000000747D0000-0x0000000074F8C000-memory.dmp

Download

memory/548-14-0x00000000747D0000-0x0000000074F8C000-memory.dmp

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memory/3276-0-0x00000000747E2000-0x00000000747E3000-memory.dmp

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memory/3276-1-0x0000000000140000-0x0000000000152000-memory.dmp

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memory/3276-2-0x00000000747D0000-0x0000000074F8C000-memory.dmp

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memory/3276-3-0x0000000004CE0000-0x0000000004D7C000-memory.dmp

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memory/3276-9-0x00000000747D0000-0x0000000074F8C000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads