asyncrat | 22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
16/08/2026, 16:48

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General

Target
22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
Size 45KB
Sample260816-vbf5faen5y
SHA256 22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5
MD5 04adda6c2ca71cb15ebfade49e536a2a
SHA1 8cb38798067be84dca598123a28a01dedfc38526
SHA512 9a1b827c5646b392d36e16ad17b9b1a7d3b3f8a4b9ed7ca04c7596a531880762b9c001e4c2720aef2c6c3e2b38b30597e861cd18db3d713b89930bccc848e2c9
SSDEEP 768:DuAqJT84XVvWUXR1Zmo2qj7S7synzuOPIzzjbYgXLivQiROgbJTI9qAaBDZcx:DuAqJT84v2wSYh3z3bPXGvQiogbJTQqe
TLSH
T135232A003BE8812BF2BE5B789DF26145867AF2633603D5891CC451DB5713FC69A42AFE
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

streamforester.name:80
streamforester.name:22
streamforester.name:8080
streamforester.name:8880
streamforester.name:2052
streamforester.name:2082
streamforester.name:2086
streamforester.name:2095
streamforester.name:443
streamforester.name:2053
streamforester.name:2083
streamforester.name:2087
streamforester.name:2096
streamforester.name:8443
www.streamforester.name:80
www.streamforester.name:22
www.streamforester.name:8080
www.streamforester.name:8880
www.streamforester.name:2052
www.streamforester.name:2082
www.streamforester.name:2086
www.streamforester.name:2095
www.streamforester.name:443
www.streamforester.name:2053
www.streamforester.name:2083
www.streamforester.name:2087
www.streamforester.name:2096
www.streamforester.name:8443
codered.streamforester.name:80
codered.streamforester.name:22
codered.streamforester.name:8080
codered.streamforester.name:8880
codered.streamforester.name:2052
codered.streamforester.name:2082
codered.streamforester.name:2086
codered.streamforester.name:2095
codered.streamforester.name:443
codered.streamforester.name:2053
codered.streamforester.name:2083
codered.streamforester.name:2087
codered.streamforester.name:2096
codered.streamforester.name:8443
client.streamforester.name:80
client.streamforester.name:22
client.streamforester.name:8080
client.streamforester.name:8880
client.streamforester.name:2052
client.streamforester.name:2082
client.streamforester.name:2086
client.streamforester.name:2095
client.streamforester.name:443
client.streamforester.name:2053
client.streamforester.name:2083
client.streamforester.name:2087
client.streamforester.name:2096
client.streamforester.name:8443
sasser.streamforester.name:80
sasser.streamforester.name:22
sasser.streamforester.name:8080
sasser.streamforester.name:8880
sasser.streamforester.name:2052
sasser.streamforester.name:2082
sasser.streamforester.name:2086
sasser.streamforester.name:2095
sasser.streamforester.name:443
sasser.streamforester.name:2053
sasser.streamforester.name:2083
sasser.streamforester.name:2087
sasser.streamforester.name:2096
sasser.streamforester.name:8443
wannacry.streamforester.name:80
wannacry.streamforester.name:22
wannacry.streamforester.name:8080
wannacry.streamforester.name:8880
wannacry.streamforester.name:2052
wannacry.streamforester.name:2082
wannacry.streamforester.name:2086
wannacry.streamforester.name:2095
wannacry.streamforester.name:443
wannacry.streamforester.name:2053
wannacry.streamforester.name:2083
wannacry.streamforester.name:2087
wannacry.streamforester.name:2096
wannacry.streamforester.name:8443

Mutex

I88GeyGp46Ri

Attributes

delay
0
install
true
install_file
nath4jo.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/0x000e00000001c492-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3496	nath4jo.exe
4428	nath4jo.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
864	cmd.exe
4424	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	nath4jo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nath4jo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.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
4180	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
4840	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 720 wrote to memory of 864	720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe	89
PID 720 wrote to memory of 4424	720	22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe	91
PID 864 wrote to memory of 4840	864	cmd.exe	93
PID 4424 wrote to memory of 4180	4424	cmd.exe	94
PID 4424 wrote to memory of 4428	4424	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe
"C:\Users\Admin\AppData\Local\Temp\22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "nath4jo" /tr '"C:\Users\Admin\AppData\Roaming\nath4jo.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:864
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "nath4jo" /tr '"C:\Users\Admin\AppData\Roaming\nath4jo.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4840
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp19C8.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4180
- - C:\Users\Admin\AppData\Roaming\nath4jo.exe
    "C:\Users\Admin\AppData\Roaming\nath4jo.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4428

C:\Users\Admin\AppData\Roaming\nath4jo.exe
"C:\Users\Admin\AppData\Roaming\nath4jo.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3496

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

tmp19C8.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp19C8.tmp.bat
Size 151B
SHA256 08c39c42c73ff5445c81900032233a223b69fc92e237c5e85725f1fe035e5d1d
MD5 ed8396f8f2938c8e7ff0c09cf5c4e234
SHA1 d9123d189731effe6871cf2fb4ddcc46f99c422c
SHA512 3fd0517065dcffccb9807db21c3019774b82772a8fa090856fbaa475702b2ae61fd451926bb923ff5d36ebd9238eca46f38e4a4ef829992ee9f6e16505e5c363
TLSH
T1D2C02B4251C5EA5E290A291302FAD49CA1BA7C293F40FB50C748406D1280C4DF0D9382
MD5 SHA1 SHA512 TLSH

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nath4jo.exe

Path C:\Users\Admin\AppData\Roaming\nath4jo.exe
Size 45KB
SHA256 22e4cd7a9372d944ff57fab8749b01c63a0f55ff09e233ea1f618b89d81319b5
MD5 04adda6c2ca71cb15ebfade49e536a2a
SHA1 8cb38798067be84dca598123a28a01dedfc38526
SHA512 9a1b827c5646b392d36e16ad17b9b1a7d3b3f8a4b9ed7ca04c7596a531880762b9c001e4c2720aef2c6c3e2b38b30597e861cd18db3d713b89930bccc848e2c9
SSDEEP 768:DuAqJT84XVvWUXR1Zmo2qj7S7synzuOPIzzjbYgXLivQiROgbJTI9qAaBDZcx:DuAqJT84v2wSYh3z3bPXGvQiogbJTQqe
TLSH
T135232A003BE8812BF2BE5B789DF26145867AF2633603D5891CC451DB5713FC69A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/720-0-0x0000000074E12000-0x0000000074E13000-memory.dmp

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memory/720-1-0x0000000000120000-0x0000000000132000-memory.dmp

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memory/720-2-0x0000000074E00000-0x00000000755BC000-memory.dmp

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memory/720-3-0x0000000004C20000-0x0000000004CBC000-memory.dmp

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memory/720-8-0x0000000074E00000-0x00000000755BC000-memory.dmp

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memory/3496-12-0x0000000074C90000-0x000000007544C000-memory.dmp

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memory/3496-14-0x0000000074C90000-0x000000007544C000-memory.dmp

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