asyncrat | 8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9

Analysis

max time kernel
6s
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
04/08/2026, 15:14

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General

Target
8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
Size 45KB
Sample260804-smflya1sfs
SHA256 8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9
MD5 e62cfb27ce241666395904073204c024
SHA1 1d6f461b7631f80ece76f903e92c8bb2d0ad1d1e
SHA512 092db3cdff0df7d100ffb6a9170af6b96b21ddb130d30d2073f872543080ece25a5b4bbb50e4fbecd94190f09d03d5efe3f33fe1bce97bb567de1396c06e0e05
SSDEEP 768:4uLZZTUAoOSWUYZL8mo2qF6Nd3u40cMOPI08zjbJgX6iALD70Zeuc9EWvsAvBDZV:4uLZZTUTn2h8+M3083bGXDALn0wucJt/
TLSH
T1AF232B003BE8812AF2BE9F7868F26145467AF6637603D54E1CC452D74613FC69A436FE
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
emotet.sas-cdn.com:80
emotet.sas-cdn.com:22
emotet.sas-cdn.com:8080
emotet.sas-cdn.com:8880
emotet.sas-cdn.com:2052
emotet.sas-cdn.com:2082
emotet.sas-cdn.com:2086
emotet.sas-cdn.com:2095
emotet.sas-cdn.com:443
emotet.sas-cdn.com:2053
emotet.sas-cdn.com:2083
emotet.sas-cdn.com:2087
emotet.sas-cdn.com:2096
emotet.sas-cdn.com:8443
cl0p.sas-cdn.com:80
cl0p.sas-cdn.com:22
cl0p.sas-cdn.com:8080
cl0p.sas-cdn.com:8880
cl0p.sas-cdn.com:2052
cl0p.sas-cdn.com:2082
cl0p.sas-cdn.com:2086
cl0p.sas-cdn.com:2095
cl0p.sas-cdn.com:443
cl0p.sas-cdn.com:2053
cl0p.sas-cdn.com:2083
cl0p.sas-cdn.com:2087
cl0p.sas-cdn.com:2096
cl0p.sas-cdn.com:8443

Mutex

PUJ9IiG0zdqt

Attributes

delay
0
install
true
install_file
j7u6q.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/0x000800000001b88e-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4728	j7u6q.exe
4560	j7u6q.exe

Outbound SSH connection to public host 2 TTPs 1 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	79.127.134.133:22

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
3024	cmd.exe
2932	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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	j7u6q.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	j7u6q.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
6052	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
3212	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1200 wrote to memory of 3024	1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe	90
PID 1200 wrote to memory of 2932	1200	8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe	92
PID 3024 wrote to memory of 3212	3024	cmd.exe	94
PID 2932 wrote to memory of 6052	2932	cmd.exe	95
PID 2932 wrote to memory of 4560	2932	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe
"C:\Users\Admin\AppData\Local\Temp\8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "j7u6q" /tr '"C:\Users\Admin\AppData\Roaming\j7u6q.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "j7u6q" /tr '"C:\Users\Admin\AppData\Roaming\j7u6q.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3212
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5579.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2932
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:6052
- - C:\Users\Admin\AppData\Roaming\j7u6q.exe
    "C:\Users\Admin\AppData\Roaming\j7u6q.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4560

C:\Users\Admin\AppData\Roaming\j7u6q.exe
"C:\Users\Admin\AppData\Roaming\j7u6q.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4728

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

tmp5579.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp5579.tmp.bat
Size 149B
SHA256 81eca7eb56251813380002afbbd01d68a2bd9dda4ac4f04af6c4caa8ac69ee10
MD5 2f4c967308290712d6587a50c4dd967a
SHA1 087982d4b92323d8ca306e32996b76e6ffecf45b
SHA512 81049818d4f8316ef2f1dcfe1bcdff014205eaf2e4597a96f0432a437bfa7b0ca2d21284ccd30955717275f9d7a9bf141a4b94b8889a177102a32b1e55795bfa
TLSH
T185C08CA261C6EA4E2C05145312BA998D9262681A3EC4AB008304401A1280898E4DA381
MD5 SHA1 SHA512 TLSH

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j7u6q.exe

Path C:\Users\Admin\AppData\Roaming\j7u6q.exe
Size 45KB
SHA256 8e988bc599f0a615a0c79fcfe35be7f8335e17d90ce9dd682e7162da5f507dd9
MD5 e62cfb27ce241666395904073204c024
SHA1 1d6f461b7631f80ece76f903e92c8bb2d0ad1d1e
SHA512 092db3cdff0df7d100ffb6a9170af6b96b21ddb130d30d2073f872543080ece25a5b4bbb50e4fbecd94190f09d03d5efe3f33fe1bce97bb567de1396c06e0e05
SSDEEP 768:4uLZZTUAoOSWUYZL8mo2qF6Nd3u40cMOPI08zjbJgX6iALD70Zeuc9EWvsAvBDZV:4uLZZTUTn2h8+M3083bGXDALn0wucJt/
TLSH
T1AF232B003BE8812AF2BE9F7868F26145467AF6637603D54E1CC452D74613FC69A436FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1200-0-0x00000000748A2000-0x00000000748A3000-memory.dmp

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memory/1200-1-0x0000000000940000-0x0000000000952000-memory.dmp

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memory/1200-2-0x0000000074890000-0x000000007504C000-memory.dmp

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memory/1200-3-0x00000000054A0000-0x000000000553C000-memory.dmp

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memory/1200-8-0x0000000074890000-0x000000007504C000-memory.dmp

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memory/4728-12-0x0000000074720000-0x0000000074EDC000-memory.dmp

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memory/4728-14-0x0000000074720000-0x0000000074EDC000-memory.dmp

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