asyncrat | 677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/07/2026, 17:23

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General

Target
677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
Size 45KB
Sample260717-vx83cacv71
SHA256 677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a
MD5 aa4e15cafe6aa3111f68bea7c5630f67
SHA1 ba305aa2afe2fded045f572641998f3814e3c019
SHA512 5bba287888b79b189ffedce64b715f7e15bd492eab95a93cec84cbd4373fc414fe2cd335f0fe75cc28ebbcbce540a4fb2da4c6acc17d9cd29d1d907d28da1630
SSDEEP 768:0u1YJTHwAUgQWUaT2Wmo2q9IDEbHBqj2OPI/pzjbOgX3iiK07VpuIPeHQBDZ8x:0u1YJTHcw2HyoK3/p3bxXSiV7jtemd8x
TLSH
T1A5230A0037E8812BF2BE4F78A9F26145867AF6633A03D5491CC451DB5623FC6DA426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

sexnga.store:80
sexnga.store:22
sexnga.store:8080
sexnga.store:8880
sexnga.store:2052
sexnga.store:2082
sexnga.store:2086
sexnga.store:2095
sexnga.store:443
sexnga.store:2053
sexnga.store:2083
sexnga.store:2087
sexnga.store:2096
sexnga.store:8443
www.sexnga.store:80
www.sexnga.store:22
www.sexnga.store:8080
www.sexnga.store:8880
www.sexnga.store:2052
www.sexnga.store:2082
www.sexnga.store:2086
www.sexnga.store:2095
www.sexnga.store:443
www.sexnga.store:2053
www.sexnga.store:2083
www.sexnga.store:2087
www.sexnga.store:2096
www.sexnga.store:8443
stuxnet.sexnga.store:80
stuxnet.sexnga.store:22
stuxnet.sexnga.store:8080
stuxnet.sexnga.store:8880
stuxnet.sexnga.store:2052
stuxnet.sexnga.store:2082
stuxnet.sexnga.store:2086
stuxnet.sexnga.store:2095
stuxnet.sexnga.store:443
stuxnet.sexnga.store:2053
stuxnet.sexnga.store:2083
stuxnet.sexnga.store:2087
stuxnet.sexnga.store:2096
stuxnet.sexnga.store:8443
blaster.sexnga.store:80
blaster.sexnga.store:22
blaster.sexnga.store:8080
blaster.sexnga.store:8880
blaster.sexnga.store:2052
blaster.sexnga.store:2082
blaster.sexnga.store:2086
blaster.sexnga.store:2095
blaster.sexnga.store:443
blaster.sexnga.store:2053
blaster.sexnga.store:2083
blaster.sexnga.store:2087
blaster.sexnga.store:2096
blaster.sexnga.store:8443
sobig.sexnga.store:80
sobig.sexnga.store:22
sobig.sexnga.store:8080
sobig.sexnga.store:8880
sobig.sexnga.store:2052
sobig.sexnga.store:2082
sobig.sexnga.store:2086
sobig.sexnga.store:2095
sobig.sexnga.store:443
sobig.sexnga.store:2053
sobig.sexnga.store:2083
sobig.sexnga.store:2087
sobig.sexnga.store:2096
sobig.sexnga.store:8443

Mutex

hzlDrYzSBTPZ

Attributes

delay
0
install
true
install_file
6yaanu.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/0x000d00000001c5b3-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
6016	6yaanu.exe
4708	6yaanu.exe

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
3384	cmd.exe
4036	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6yaanu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6yaanu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4820	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
4408	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
Token: SeDebugPrivilege	6016	6yaanu.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 3384	1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe	86
PID 1544 wrote to memory of 4036	1544	677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe	88
PID 4036 wrote to memory of 4820	4036	cmd.exe	90
PID 3384 wrote to memory of 4408	3384	cmd.exe	91
PID 4036 wrote to memory of 4708	4036	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe
"C:\Users\Admin\AppData\Local\Temp\677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "6yaanu" /tr '"C:\Users\Admin\AppData\Roaming\6yaanu.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3384
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "6yaanu" /tr '"C:\Users\Admin\AppData\Roaming\6yaanu.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4408
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp51EA.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4036
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4820
- - C:\Users\Admin\AppData\Roaming\6yaanu.exe
    "C:\Users\Admin\AppData\Roaming\6yaanu.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4708

C:\Users\Admin\AppData\Roaming\6yaanu.exe
"C:\Users\Admin\AppData\Roaming\6yaanu.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:6016

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp51EA.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp51EA.tmp.bat
Size 150B
SHA256 5f5c5673c5af23bf089989ea28f5ee22437e7430a8b25377312f904824d29e17
MD5 a7b6ded8bc25a61b94d28ac8d5e055e6
SHA1 3a12f18ed8f968101ea50d200431a30066e6d3a6
SHA512 d10f7ab0ba7fa0af5e0ee887d5e3c62acf0f9d81657e7022752f00da26877cf06e35991fa6b741b5ad837de6bac7344abd408c11be179973256d0a498041c933
TLSH
T135C08C5662C9AB1E2805141302BADADC916A691A3E80AB008B04908AA280448F099281
MD5 SHA1 SHA512 TLSH

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6yaanu.exe

Path C:\Users\Admin\AppData\Roaming\6yaanu.exe
Size 45KB
SHA256 677a807e896f90a65750557ff8f0296952e3e084413bdbfabf0536dda43d707a
MD5 aa4e15cafe6aa3111f68bea7c5630f67
SHA1 ba305aa2afe2fded045f572641998f3814e3c019
SHA512 5bba287888b79b189ffedce64b715f7e15bd492eab95a93cec84cbd4373fc414fe2cd335f0fe75cc28ebbcbce540a4fb2da4c6acc17d9cd29d1d907d28da1630
SSDEEP 768:0u1YJTHwAUgQWUaT2Wmo2q9IDEbHBqj2OPI/pzjbOgX3iiK07VpuIPeHQBDZ8x:0u1YJTHcw2HyoK3/p3bxXSiV7jtemd8x
TLSH
T1A5230A0037E8812BF2BE4F78A9F26145867AF6633A03D5491CC451DB5623FC6DA426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1544-0-0x0000000074982000-0x0000000074983000-memory.dmp

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memory/1544-1-0x0000000000BB0000-0x0000000000BC2000-memory.dmp

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memory/1544-2-0x0000000074970000-0x000000007512C000-memory.dmp

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memory/1544-3-0x00000000057A0000-0x000000000583C000-memory.dmp

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memory/1544-8-0x0000000074970000-0x000000007512C000-memory.dmp

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memory/6016-12-0x0000000074800000-0x0000000074FBC000-memory.dmp

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memory/6016-14-0x0000000074800000-0x0000000074FBC000-memory.dmp

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