asyncrat | 665ea3a31974103271eb8f29d5477c6e856601efd9b70f34cee80518bd6444cd

Analysis

max time kernel
60s
max time network
62s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
17/08/2026, 19:38

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General

Target
665ea3a31974103271eb8f29d5477c6e856601efd9b70f34cee80518bd6444cd.exe
Size 45KB
Sample260817-ycgn5syalg
SHA256 665ea3a31974103271eb8f29d5477c6e856601efd9b70f34cee80518bd6444cd
MD5 38a1c55d3aebde5f91b323aff2e794c6
SHA1 1dba477fad8220d68ae77027d34bb46f3986ef6b
SHA512 bb8df45e19ad8d7037d63ec4a35a149d68c4849689645290cb9a165c265cfa19419d9c6c2291721bb094e81a37855694a15e3b3e746662bd51ea4982813d3c1d
SSDEEP 768:IuuZ5TbUo/BWUlf+DHmo2q7lCSwTMjPIuBjbAgX3ijLq+yn2RWnBaPDevBDZFx:IuuZ5Tbjst2wg1uRbnXSjK2ROBKgdFx
TLSH
T159231B003BE9812BF2BE4F78A9F25145467AF1673A03D58E1CC451DB5A23FC68A426FD
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

e.streamforester.name:80
e.streamforester.name:22
e.streamforester.name:8080
e.streamforester.name:8880
e.streamforester.name:2052
e.streamforester.name:2082
e.streamforester.name:2086
e.streamforester.name:2095
e.streamforester.name:443
e.streamforester.name:2053
e.streamforester.name:2083
e.streamforester.name:2087
e.streamforester.name:2096
e.streamforester.name:8443
www.e.streamforester.name:80
www.e.streamforester.name:22
www.e.streamforester.name:8080
www.e.streamforester.name:8880
www.e.streamforester.name:2052
www.e.streamforester.name:2082
www.e.streamforester.name:2086
www.e.streamforester.name:2095
www.e.streamforester.name:443
www.e.streamforester.name:2053
www.e.streamforester.name:2083
www.e.streamforester.name:2087
www.e.streamforester.name:2096
www.e.streamforester.name:8443
ryuk.e.streamforester.name:80
ryuk.e.streamforester.name:22
ryuk.e.streamforester.name:8080
ryuk.e.streamforester.name:8880
ryuk.e.streamforester.name:2052
ryuk.e.streamforester.name:2082
ryuk.e.streamforester.name:2086
ryuk.e.streamforester.name:2095
ryuk.e.streamforester.name:443
ryuk.e.streamforester.name:2053
ryuk.e.streamforester.name:2083
ryuk.e.streamforester.name:2087
ryuk.e.streamforester.name:2096
ryuk.e.streamforester.name:8443
gootloader.e.streamforester.name:80
gootloader.e.streamforester.name:22
gootloader.e.streamforester.name:8080
gootloader.e.streamforester.name:8880
gootloader.e.streamforester.name:2052
gootloader.e.streamforester.name:2082
gootloader.e.streamforester.name:2086
gootloader.e.streamforester.name:2095
gootloader.e.streamforester.name:443
gootloader.e.streamforester.name:2053
gootloader.e.streamforester.name:2083
gootloader.e.streamforester.name:2087
gootloader.e.streamforester.name:2096
gootloader.e.streamforester.name:8443
dridex.e.streamforester.name:80
dridex.e.streamforester.name:22
dridex.e.streamforester.name:8080
dridex.e.streamforester.name:8880
dridex.e.streamforester.name:2052
dridex.e.streamforester.name:2082
dridex.e.streamforester.name:2086
dridex.e.streamforester.name:2095
dridex.e.streamforester.name:443
dridex.e.streamforester.name:2053
dridex.e.streamforester.name:2083
dridex.e.streamforester.name:2087
dridex.e.streamforester.name:2096
dridex.e.streamforester.name:8443
hack.e.streamforester.name:80
hack.e.streamforester.name:22
hack.e.streamforester.name:8080
hack.e.streamforester.name:8880
hack.e.streamforester.name:2052
hack.e.streamforester.name:2082
hack.e.streamforester.name:2086
hack.e.streamforester.name:2095
hack.e.streamforester.name:443
hack.e.streamforester.name:2053
hack.e.streamforester.name:2083
hack.e.streamforester.name:2087
hack.e.streamforester.name:2096
hack.e.streamforester.name:8443

Mutex

giSee3hxwjjl

Attributes

delay
0
install
true
install_file
w6z117.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/0x000e00000001c4df-10.dat	family_asyncrat

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
4900	cmd.exe
836	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	665ea3a31974103271eb8f29d5477c6e856601efd9b70f34cee80518bd6444cd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2620	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
4628	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\665ea3a31974103271eb8f29d5477c6e856601efd9b70f34cee80518bd6444cd.exe
"C:\Users\Admin\AppData\Local\Temp\665ea3a31974103271eb8f29d5477c6e856601efd9b70f34cee80518bd6444cd.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:4276
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "w6z117" /tr '"C:\Users\Admin\AppData\Roaming\w6z117.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  PID:4900
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "w6z117" /tr '"C:\Users\Admin\AppData\Roaming\w6z117.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4628
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFE8F.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  PID:836
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2620
- - C:\Users\Admin\AppData\Roaming\w6z117.exe
    "C:\Users\Admin\AppData\Roaming\w6z117.exe"
    3⤵
    PID:4356

C:\Users\Admin\AppData\Roaming\w6z117.exe
"C:\Users\Admin\AppData\Roaming\w6z117.exe"
1⤵
PID:3388

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmpFE8F.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpFE8F.tmp.bat
Size 150B
SHA256 38e1949c4dfb2c21eaefd1dfa47639358ba625d76421eedf3b46ce7bfa589bc3
MD5 d6e26c9760d16f47237cf519a1c9860b
SHA1 65d0974fcd4949c93e1a29337e0cc259b2103acd
SHA512 8fac30589a2fe7db490340c881b6910760a59aa1abbbc40783712afd4840fbbeb8a57f4c573183695d012582f2f0fe3d2b0d82a79831116b82d1f2f6e2b6b365
TLSH
T149C02B53A1C5FA4E2809641306FAD58DD172EC193F40BF00D309480E2280498F0DD342
MD5 SHA1 SHA512 TLSH

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w6z117.exe

Path C:\Users\Admin\AppData\Roaming\w6z117.exe
Size 45KB
SHA256 665ea3a31974103271eb8f29d5477c6e856601efd9b70f34cee80518bd6444cd
MD5 38a1c55d3aebde5f91b323aff2e794c6
SHA1 1dba477fad8220d68ae77027d34bb46f3986ef6b
SHA512 bb8df45e19ad8d7037d63ec4a35a149d68c4849689645290cb9a165c265cfa19419d9c6c2291721bb094e81a37855694a15e3b3e746662bd51ea4982813d3c1d
SSDEEP 768:IuuZ5TbUo/BWUlf+DHmo2q7lCSwTMjPIuBjbAgX3ijLq+yn2RWnBaPDevBDZFx:IuuZ5Tbjst2wg1uRbnXSjK2ROBKgdFx
TLSH
T159231B003BE9812BF2BE4F78A9F25145467AF1673A03D58E1CC451DB5A23FC68A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3388-12-0x00000000750C0000-0x000000007587C000-memory.dmp

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memory/3388-14-0x00000000750C0000-0x000000007587C000-memory.dmp

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memory/4276-0-0x00000000750D2000-0x00000000750D3000-memory.dmp

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memory/4276-1-0x00000000006F0000-0x0000000000702000-memory.dmp

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memory/4276-2-0x00000000750C0000-0x000000007587C000-memory.dmp

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memory/4276-3-0x0000000005300000-0x000000000539C000-memory.dmp

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memory/4276-8-0x00000000750C0000-0x000000007587C000-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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