asyncrat | a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998

Analysis

max time kernel
6s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260706-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
08/07/2026, 04:19

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General

Target
a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
Size 45KB
Sample260708-exsglaax3y
SHA256 a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998
MD5 73be1b144b06edfc98251ac2049d1f7a
SHA1 93a820107f21b0782f4e870033fe08c322cb84fa
SHA512 4bfa9a85c069a6160e4519b63fea09024dc22b6f29d407f71b3e1313d8cc4f6ffad6778f0d5383a60c15c38a9835df4d57bb00209498e1274b259a27e1f7f97d
SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qFKBlte40WMOPI0IzjbRgX+iiCkdHfgsbEOzBDZUx:cu7e5TH2A2d2UM30I3beXHZIHvVdUx
TLSH
T169233A003BE88127F2BF5FB8A9F26245467AF6637603D54E1CC4519B4613FC68A426FE
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

s.viet69sex.blog:80
s.viet69sex.blog:22
s.viet69sex.blog:8080
s.viet69sex.blog:8880
s.viet69sex.blog:2052
s.viet69sex.blog:2082
s.viet69sex.blog:2086
s.viet69sex.blog:2095
s.viet69sex.blog:443
s.viet69sex.blog:2053
s.viet69sex.blog:2083
s.viet69sex.blog:2087
s.viet69sex.blog:2096
s.viet69sex.blog:8443
www.s.viet69sex.blog:80
www.s.viet69sex.blog:22
www.s.viet69sex.blog:8080
www.s.viet69sex.blog:8880
www.s.viet69sex.blog:2052
www.s.viet69sex.blog:2082
www.s.viet69sex.blog:2086
www.s.viet69sex.blog:2095
www.s.viet69sex.blog:443
www.s.viet69sex.blog:2053
www.s.viet69sex.blog:2083
www.s.viet69sex.blog:2087
www.s.viet69sex.blog:2096
www.s.viet69sex.blog:8443
malware.s.viet69sex.blog:80
malware.s.viet69sex.blog:22
malware.s.viet69sex.blog:8080
malware.s.viet69sex.blog:8880
malware.s.viet69sex.blog:2052
malware.s.viet69sex.blog:2082
malware.s.viet69sex.blog:2086
malware.s.viet69sex.blog:2095
malware.s.viet69sex.blog:443
malware.s.viet69sex.blog:2053
malware.s.viet69sex.blog:2083
malware.s.viet69sex.blog:2087
malware.s.viet69sex.blog:2096
malware.s.viet69sex.blog:8443
melissa.s.viet69sex.blog:80
melissa.s.viet69sex.blog:22
melissa.s.viet69sex.blog:8080
melissa.s.viet69sex.blog:8880
melissa.s.viet69sex.blog:2052
melissa.s.viet69sex.blog:2082
melissa.s.viet69sex.blog:2086
melissa.s.viet69sex.blog:2095
melissa.s.viet69sex.blog:443
melissa.s.viet69sex.blog:2053
melissa.s.viet69sex.blog:2083
melissa.s.viet69sex.blog:2087
melissa.s.viet69sex.blog:2096
melissa.s.viet69sex.blog:8443

Mutex

NnCyrTrj9lFI

Attributes

delay
0
install
true
install_file
d120p.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/0x000d00000001c588-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
5972	d120p.exe
4196	d120p.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	d120p.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d120p.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2580	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
4024	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
Token: SeDebugPrivilege	5972	d120p.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 580 wrote to memory of 4012	580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe	88
PID 580 wrote to memory of 3240	580	a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe	89
PID 3240 wrote to memory of 2580	3240	cmd.exe	92
PID 4012 wrote to memory of 4024	4012	cmd.exe	93
PID 3240 wrote to memory of 4196	3240	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe
"C:\Users\Admin\AppData\Local\Temp\a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:580
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "d120p" /tr '"C:\Users\Admin\AppData\Roaming\d120p.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4012
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "d120p" /tr '"C:\Users\Admin\AppData\Roaming\d120p.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4024
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp68F1.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3240
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2580
- - C:\Users\Admin\AppData\Roaming\d120p.exe
    "C:\Users\Admin\AppData\Roaming\d120p.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4196

C:\Users\Admin\AppData\Roaming\d120p.exe
"C:\Users\Admin\AppData\Roaming\d120p.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5972

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

tmp68F1.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp68F1.tmp.bat
Size 149B
SHA256 2d24249d53df8ae0cc319778a5b3beea6e76d4f18f4727c9bf85a3951d023e38
MD5 03f7cfaf0b77f512eb6c0c303057c1ce
SHA1 0f0ccce1aed3c3e0ca306021e8dc62cb8c5b7a7b
SHA512 9e64e006e66a8d61991d4dd63d5d5e36054dbbe9c9481175382cbd7dccee443485362b6652cba0219237285a726722d07ac91ce5ba92a26b748ebee770311d58
TLSH
T1BEC08CA252C5AA1E2809246306BA958D917268293E44AB508748410D6280489E0D9242
MD5 SHA1 SHA512 TLSH

Submit Download

d120p.exe

Path C:\Users\Admin\AppData\Roaming\d120p.exe
Size 45KB
SHA256 a9b2b31bfdefb9d378d59f4c37eef4e475dbb7a50d1c071778c556ac79ba5998
MD5 73be1b144b06edfc98251ac2049d1f7a
SHA1 93a820107f21b0782f4e870033fe08c322cb84fa
SHA512 4bfa9a85c069a6160e4519b63fea09024dc22b6f29d407f71b3e1313d8cc4f6ffad6778f0d5383a60c15c38a9835df4d57bb00209498e1274b259a27e1f7f97d
SSDEEP 768:cu7m/5THrq+CWUoDuMmo2qFKBlte40WMOPI0IzjbRgX+iiCkdHfgsbEOzBDZUx:cu7e5TH2A2d2UM30I3beXHZIHvVdUx
TLSH
T169233A003BE88127F2BF5FB8A9F26245467AF6637603D54E1CC4519B4613FC68A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/580-0-0x00000000747B2000-0x00000000747B3000-memory.dmp

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memory/580-1-0x0000000000720000-0x0000000000732000-memory.dmp

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memory/580-2-0x00000000747A0000-0x0000000074F5C000-memory.dmp

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memory/580-3-0x0000000005230000-0x00000000052CC000-memory.dmp

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memory/580-8-0x00000000747A0000-0x0000000074F5C000-memory.dmp

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memory/5972-12-0x0000000074630000-0x0000000074DEC000-memory.dmp

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memory/5972-14-0x0000000074630000-0x0000000074DEC000-memory.dmp

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