asyncrat | e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2

Analysis

max time kernel
6s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
12/07/2026, 14:35

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General

Target
e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
Size 45KB
Sample260712-ryfweabx7n
SHA256 e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2
MD5 7cb6f05245213f6dc2ed6d8c4a95f23a
SHA1 78f7634b5ff4ae4b195ccb44fd26e82d81648f17
SHA512 4905cd255e8176fb8df5f10d0ee8120d572fb3a9fd8166b89377c6a8add5b7b4973ab9c2b13d77b06b68b3d0bde004388deda0dc019d1b3b7b6921be6fc1296a
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlKm/9GgROPIpzjbCgX3iN7FxmfDc8zwBDZMx:wuDWZTpMZSB2Bm1h3p3blXSNPmA8CdMx
TLSH
T119231A003BE9822BF2BE4B7899F26145467AF2A33603D54E1CC451DB5713FC69A426FE
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

viet69.be:80
viet69.be:22
viet69.be:8080
viet69.be:8880
viet69.be:2052
viet69.be:2082
viet69.be:2086
viet69.be:2095
viet69.be:443
viet69.be:2053
viet69.be:2083
viet69.be:2087
viet69.be:2096
viet69.be:8443
www.viet69.be:80
www.viet69.be:22
www.viet69.be:8080
www.viet69.be:8880
www.viet69.be:2052
www.viet69.be:2082
www.viet69.be:2086
www.viet69.be:2095
www.viet69.be:443
www.viet69.be:2053
www.viet69.be:2083
www.viet69.be:2087
www.viet69.be:2096
www.viet69.be:8443
blacklotus.viet69.be:80
blacklotus.viet69.be:22
blacklotus.viet69.be:8080
blacklotus.viet69.be:8880
blacklotus.viet69.be:2052
blacklotus.viet69.be:2082
blacklotus.viet69.be:2086
blacklotus.viet69.be:2095
blacklotus.viet69.be:443
blacklotus.viet69.be:2053
blacklotus.viet69.be:2083
blacklotus.viet69.be:2087
blacklotus.viet69.be:2096
blacklotus.viet69.be:8443
industroyer.viet69.be:80
industroyer.viet69.be:22
industroyer.viet69.be:8080
industroyer.viet69.be:8880
industroyer.viet69.be:2052
industroyer.viet69.be:2082
industroyer.viet69.be:2086
industroyer.viet69.be:2095
industroyer.viet69.be:443
industroyer.viet69.be:2053
industroyer.viet69.be:2083
industroyer.viet69.be:2087
industroyer.viet69.be:2096
industroyer.viet69.be:8443

Mutex

4UCDEHhh3i7Z

Attributes

delay
0
install
true
install_file
vswfg.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/0x000e00000001c4d6-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
5048	vswfg.exe
6004	vswfg.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vswfg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vswfg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4848	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
988	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
Token: SeDebugPrivilege	5048	vswfg.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5180 wrote to memory of 1104	5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe	87
PID 5180 wrote to memory of 4100	5180	e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe	89
PID 1104 wrote to memory of 988	1104	cmd.exe	91
PID 4100 wrote to memory of 4848	4100	cmd.exe	92
PID 4100 wrote to memory of 6004	4100	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe
"C:\Users\Admin\AppData\Local\Temp\e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "vswfg" /tr '"C:\Users\Admin\AppData\Roaming\vswfg.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1104
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "vswfg" /tr '"C:\Users\Admin\AppData\Roaming\vswfg.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:988
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp307C.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4100
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4848
- - C:\Users\Admin\AppData\Roaming\vswfg.exe
    "C:\Users\Admin\AppData\Roaming\vswfg.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:6004

C:\Users\Admin\AppData\Roaming\vswfg.exe
"C:\Users\Admin\AppData\Roaming\vswfg.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5048

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

tmp307C.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp307C.tmp.bat
Size 149B
SHA256 366ecbe9b9c4473e4baac9942f4f19921d1b8a375889894617e891bbd6ae62dc
MD5 e518c1150036bf282263363bfdc021c4
SHA1 a39701b5f47d408a24c9d2bd5281558b10fa891d
SHA512 1e990280476ef04a217aec7adb637e0608cc11bf63783986d8085a06fa728bac6ed0ac86ab2aabc365854c91c6d4e16884a6fd003b3088dbd116e2d19affc913
TLSH
T140C02B6253CAEA0E3D0A549303FAD4CCA1726D693F81FF00E304841D2681858F0EA341
MD5 SHA1 SHA512 TLSH

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vswfg.exe

Path C:\Users\Admin\AppData\Roaming\vswfg.exe
Size 45KB
SHA256 e3d39188eeef6442f7867adc1f335218862413106e88d9f837fc1b98c4c5a8c2
MD5 7cb6f05245213f6dc2ed6d8c4a95f23a
SHA1 78f7634b5ff4ae4b195ccb44fd26e82d81648f17
SHA512 4905cd255e8176fb8df5f10d0ee8120d572fb3a9fd8166b89377c6a8add5b7b4973ab9c2b13d77b06b68b3d0bde004388deda0dc019d1b3b7b6921be6fc1296a
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlKm/9GgROPIpzjbCgX3iN7FxmfDc8zwBDZMx:wuDWZTpMZSB2Bm1h3p3blXSNPmA8CdMx
TLSH
T119231A003BE9822BF2BE4B7899F26145467AF2A33603D54E1CC451DB5713FC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/5048-12-0x0000000074620000-0x0000000074DDC000-memory.dmp

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memory/5048-14-0x0000000074620000-0x0000000074DDC000-memory.dmp

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memory/5180-0-0x00000000747D2000-0x00000000747D3000-memory.dmp

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memory/5180-1-0x0000000000BA0000-0x0000000000BB2000-memory.dmp

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memory/5180-2-0x00000000747C0000-0x0000000074F7C000-memory.dmp

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memory/5180-3-0x0000000005690000-0x000000000572C000-memory.dmp

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memory/5180-8-0x00000000747C0000-0x0000000074F7C000-memory.dmp

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