asyncrat | 3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624

Analysis

max time kernel
6s
max time network
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/08/2026, 15:23

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General

Target
3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
Size 45KB
Sample260804-ssjksa1thx
SHA256 3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624
MD5 3227f47402ceed6fc216248582ec52a5
SHA1 57868b9135ef830337b4703818dc059d459ab5c3
SHA512 7668dd67642042df2b090143963ab0fa9d1553d547be3e10f37d637f887254e7b41e7689805fce16e5c054359d28cc6767397b6a3f06e1bacb87a4502aa80eb1
SSDEEP 768:5uSy6pTpwrSWWUE3/WImo2qNK9wa0y/zFOPIuzjbJgA3i9w/oGoefsQNsPBDZ0x:5uSy6pTpoo2HCdi3u3bGAS9wmefsQgd2
TLSH
T138232A003BE9812BF2BF5BB89DF26105867AF1673603D64E1CC451DB5623BC686426FE
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

sas-cdn.com:80
sas-cdn.com:22
sas-cdn.com:8080
sas-cdn.com:8880
sas-cdn.com:2052
sas-cdn.com:2082
sas-cdn.com:2086
sas-cdn.com:2095
sas-cdn.com:443
sas-cdn.com:2053
sas-cdn.com:2083
sas-cdn.com:2087
sas-cdn.com:2096
sas-cdn.com:8443
www.sas-cdn.com:80
www.sas-cdn.com:22
www.sas-cdn.com:8080
www.sas-cdn.com:8880
www.sas-cdn.com:2052
www.sas-cdn.com:2082
www.sas-cdn.com:2086
www.sas-cdn.com:2095
www.sas-cdn.com:443
www.sas-cdn.com:2053
www.sas-cdn.com:2083
www.sas-cdn.com:2087
www.sas-cdn.com:2096
www.sas-cdn.com:8443
client.sas-cdn.com:80
client.sas-cdn.com:22
client.sas-cdn.com:8080
client.sas-cdn.com:8880
client.sas-cdn.com:2052
client.sas-cdn.com:2082
client.sas-cdn.com:2086
client.sas-cdn.com:2095
client.sas-cdn.com:443
client.sas-cdn.com:2053
client.sas-cdn.com:2083
client.sas-cdn.com:2087
client.sas-cdn.com:2096
client.sas-cdn.com:8443
ursnif.sas-cdn.com:80
ursnif.sas-cdn.com:22
ursnif.sas-cdn.com:8080
ursnif.sas-cdn.com:8880
ursnif.sas-cdn.com:2052
ursnif.sas-cdn.com:2082
ursnif.sas-cdn.com:2086
ursnif.sas-cdn.com:2095
ursnif.sas-cdn.com:443
ursnif.sas-cdn.com:2053
ursnif.sas-cdn.com:2083
ursnif.sas-cdn.com:2087
ursnif.sas-cdn.com:2096
ursnif.sas-cdn.com:8443

Mutex

jEqtQ2XqtitH

Attributes

delay
0
install
true
install_file
48xd8sl.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/0x000e00000001c465-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
5348	48xd8sl.exe
2948	48xd8sl.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	12	143.244.56.57:22
SSH destination	16	79.127.134.132:22

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
260	cmd.exe
1712	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	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	48xd8sl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	48xd8sl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
2568	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4136 wrote to memory of 260	4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe	89
PID 4136 wrote to memory of 1712	4136	3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe	91
PID 260 wrote to memory of 2568	260	cmd.exe	93
PID 1712 wrote to memory of 1272	1712	cmd.exe	94
PID 1712 wrote to memory of 2948	1712	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe
"C:\Users\Admin\AppData\Local\Temp\3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4136
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "48xd8sl" /tr '"C:\Users\Admin\AppData\Roaming\48xd8sl.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:260
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "48xd8sl" /tr '"C:\Users\Admin\AppData\Roaming\48xd8sl.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2568
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4982.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1712
- - 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\48xd8sl.exe
    "C:\Users\Admin\AppData\Roaming\48xd8sl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2948

C:\Users\Admin\AppData\Roaming\48xd8sl.exe
"C:\Users\Admin\AppData\Roaming\48xd8sl.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5348

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

tmp4982.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp4982.tmp.bat
Size 151B
SHA256 c54186e1c4fb43e401929e101649c9634993d81e799f385d4a78bce3431c736b
MD5 6f7f698adcfd9ae0296cb85606e3a4b3
SHA1 a92da750d7ad49be4f8410afb567ab4fe64e35e9
SHA512 aaeaa832126efcd32dab992756e5f7bc6fced384516486a7a22e4d9658c7d1e42489cd54d068e99190eddf5330205b87d996ff4d4bc4bfe4a21b4679e2a1270f
TLSH
T100C02B82A2C5FE0E6849B45316FAD48D9176AD2E3F40BB40D748445D2280489F0DB341
MD5 SHA1 SHA512 TLSH

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48xd8sl.exe

Path C:\Users\Admin\AppData\Roaming\48xd8sl.exe
Size 45KB
SHA256 3266b198f142c90cb58575f793b57777241972693ce5ff3945ad25ef8374d624
MD5 3227f47402ceed6fc216248582ec52a5
SHA1 57868b9135ef830337b4703818dc059d459ab5c3
SHA512 7668dd67642042df2b090143963ab0fa9d1553d547be3e10f37d637f887254e7b41e7689805fce16e5c054359d28cc6767397b6a3f06e1bacb87a4502aa80eb1
SSDEEP 768:5uSy6pTpwrSWWUE3/WImo2qNK9wa0y/zFOPIuzjbJgA3i9w/oGoefsQNsPBDZ0x:5uSy6pTpoo2HCdi3u3bGAS9wmefsQgd2
TLSH
T138232A003BE9812BF2BF5BB89DF26105867AF1673603D64E1CC451DB5623BC686426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4136-0-0x0000000074962000-0x0000000074963000-memory.dmp

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memory/4136-1-0x0000000000400000-0x0000000000412000-memory.dmp

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memory/4136-2-0x0000000074950000-0x000000007510C000-memory.dmp

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memory/4136-3-0x0000000004F20000-0x0000000004FBC000-memory.dmp

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memory/4136-9-0x0000000074950000-0x000000007510C000-memory.dmp

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memory/5348-12-0x0000000074950000-0x000000007510C000-memory.dmp

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memory/5348-14-0x0000000074950000-0x000000007510C000-memory.dmp

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