asyncrat | 35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f

Analysis

max time kernel
148s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
16/08/2026, 16:48

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General

Target
35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
Size 45KB
Sample260816-vbftnsen5t
SHA256 35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f
MD5 67505c73094dd015dc614b78bf17abf0
SHA1 24852afb5ae35a22834ad1ba26ee982b301157f1
SHA512 edfeeb173f108e21415b74dda986a97d867bb21f157f0939076806f923f191bc80b9df1a7d210addac7eaa3d553fb4726afefbefce10584c37ee37757ea48f22
SSDEEP 768:EulCJTHESwgWUK3aGmo2q9VhkJHJxOPIcPzjb3gY3i+p2FtaB04dh1z1Ri1gdOKl:EulCJTHl42VRj3cP3bQYS1Ftd4z1z1A+
TLSH
T148231B0037E8812BF27E4F78A8F26145467AF6673603D58D1CC451DB5623FC69A42AFE
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

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
fakeupdates.e.streamforester.name:80
fakeupdates.e.streamforester.name:22
fakeupdates.e.streamforester.name:8080
fakeupdates.e.streamforester.name:8880
fakeupdates.e.streamforester.name:2052
fakeupdates.e.streamforester.name:2082
fakeupdates.e.streamforester.name:2086
fakeupdates.e.streamforester.name:2095
fakeupdates.e.streamforester.name:443
fakeupdates.e.streamforester.name:2053
fakeupdates.e.streamforester.name:2083
fakeupdates.e.streamforester.name:2087
fakeupdates.e.streamforester.name:2096
fakeupdates.e.streamforester.name:8443
triton.e.streamforester.name:80
triton.e.streamforester.name:22
triton.e.streamforester.name:8080
triton.e.streamforester.name:8880
triton.e.streamforester.name:2052
triton.e.streamforester.name:2082
triton.e.streamforester.name:2086
triton.e.streamforester.name:2095
triton.e.streamforester.name:443
triton.e.streamforester.name:2053
triton.e.streamforester.name:2083
triton.e.streamforester.name:2087
triton.e.streamforester.name:2096
triton.e.streamforester.name:8443

Mutex

gcRgEhETVpFi

Attributes

delay
0
install
true
install_file
gyyogn.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/0x000d00000001c5d6-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1520	gyyogn.exe
2800	gyyogn.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	17	172.67.70.147:22
SSH destination	18	104.26.5.5:22

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
1784	cmd.exe
4752	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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gyyogn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gyyogn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
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	schtasks.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4780	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
3316	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5584 wrote to memory of 1784	5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe	89
PID 5584 wrote to memory of 4752	5584	35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe	90
PID 1784 wrote to memory of 3316	1784	cmd.exe	93
PID 4752 wrote to memory of 4780	4752	cmd.exe	94
PID 4752 wrote to memory of 2800	4752	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe
"C:\Users\Admin\AppData\Local\Temp\35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5584
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "gyyogn" /tr '"C:\Users\Admin\AppData\Roaming\gyyogn.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1784
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "gyyogn" /tr '"C:\Users\Admin\AppData\Roaming\gyyogn.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3316
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4D2C.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4752
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4780
- - C:\Users\Admin\AppData\Roaming\gyyogn.exe
    "C:\Users\Admin\AppData\Roaming\gyyogn.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2800

C:\Users\Admin\AppData\Roaming\gyyogn.exe
"C:\Users\Admin\AppData\Roaming\gyyogn.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1520

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

tmp4D2C.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp4D2C.tmp.bat
Size 150B
SHA256 d33493020df3f4f1e2c020f519f5e4f1c92470c8572ac2657485dd6a37f09abe
MD5 85396656ac7fb59570eb81b9b94dce7f
SHA1 c4e3344853675f71be553cfe2113743960ca7eba
SHA512 ffb7904f4d582953e6503e68e7c675dc37ea735c5af7514bbb2dc50488626005bc4b5dc6793d7ba8f0aba44289aa01dbfdf4c399df6cacffc2cd0e470356f307
TLSH
T111C02B4291C5FA4F380524530BFAD48C91B36C1E3F44BF80DB08845D62C0448F0DD341
MD5 SHA1 SHA512 TLSH

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gyyogn.exe

Path C:\Users\Admin\AppData\Roaming\gyyogn.exe
Size 45KB
SHA256 35e61b55fa8f7fcec63932194857afce9841659b05d0bd3656e458c13ac1516f
MD5 67505c73094dd015dc614b78bf17abf0
SHA1 24852afb5ae35a22834ad1ba26ee982b301157f1
SHA512 edfeeb173f108e21415b74dda986a97d867bb21f157f0939076806f923f191bc80b9df1a7d210addac7eaa3d553fb4726afefbefce10584c37ee37757ea48f22
SSDEEP 768:EulCJTHESwgWUK3aGmo2q9VhkJHJxOPIcPzjb3gY3i+p2FtaB04dh1z1Ri1gdOKl:EulCJTHl42VRj3cP3bQYS1Ftd4z1z1A+
TLSH
T148231B0037E8812BF27E4F78A8F26145467AF6673603D58D1CC451DB5623FC69A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1520-12-0x0000000074E90000-0x000000007564C000-memory.dmp

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memory/1520-14-0x0000000074E90000-0x000000007564C000-memory.dmp

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memory/5584-0-0x0000000075012000-0x0000000075013000-memory.dmp

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memory/5584-1-0x0000000000820000-0x0000000000832000-memory.dmp

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memory/5584-2-0x0000000075000000-0x00000000757BC000-memory.dmp

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memory/5584-3-0x00000000053B0000-0x000000000544C000-memory.dmp

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memory/5584-8-0x0000000075000000-0x00000000757BC000-memory.dmp

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