asyncrat | 1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d

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
21/08/2026, 08:49

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General

Target
1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
Size 45KB
Sample260821-krdddabl6t
SHA256 1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d
MD5 970b2e2958f9715ebfddb5a55a06ee0d
SHA1 caa7a385457099c8b987deca8d284cfc4c3e7a42
SHA512 86f0abf0c2d334c75207b8a8630938c71a8a3815c3f7bac27ec6a4ae1dc42d5ac6ae16a4dde99038e97a27dc45f061d5ec851073958905f975883f2c2b1907b5
SSDEEP 768:EufspTfzcR6uWUcb+wmo2q9kIz/yPqiPIMzjb6gX3i7nCHCnFzi0QUUtSBDZsx:EufspTf2g2/c5M3btXS7CiFzigpdsx
TLSH
T1FF233B003BEDC12BF2BF5B78ADF26145467AB6632603D54D1CC4119B5623FC68A42AFE
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

mio9ecge.name:80
mio9ecge.name:22
mio9ecge.name:8080
mio9ecge.name:8880
mio9ecge.name:2052
mio9ecge.name:2082
mio9ecge.name:2086
mio9ecge.name:2095
mio9ecge.name:443
mio9ecge.name:2053
mio9ecge.name:2083
mio9ecge.name:2087
mio9ecge.name:2096
mio9ecge.name:8443
www.mio9ecge.name:80
www.mio9ecge.name:22
www.mio9ecge.name:8080
www.mio9ecge.name:8880
www.mio9ecge.name:2052
www.mio9ecge.name:2082
www.mio9ecge.name:2086
www.mio9ecge.name:2095
www.mio9ecge.name:443
www.mio9ecge.name:2053
www.mio9ecge.name:2083
www.mio9ecge.name:2087
www.mio9ecge.name:2096
www.mio9ecge.name:8443
downadup.mio9ecge.name:80
downadup.mio9ecge.name:22
downadup.mio9ecge.name:8080
downadup.mio9ecge.name:8880
downadup.mio9ecge.name:2052
downadup.mio9ecge.name:2082
downadup.mio9ecge.name:2086
downadup.mio9ecge.name:2095
downadup.mio9ecge.name:443
downadup.mio9ecge.name:2053
downadup.mio9ecge.name:2083
downadup.mio9ecge.name:2087
downadup.mio9ecge.name:2096
downadup.mio9ecge.name:8443
shamoon.mio9ecge.name:80
shamoon.mio9ecge.name:22
shamoon.mio9ecge.name:8080
shamoon.mio9ecge.name:8880
shamoon.mio9ecge.name:2052
shamoon.mio9ecge.name:2082
shamoon.mio9ecge.name:2086
shamoon.mio9ecge.name:2095
shamoon.mio9ecge.name:443
shamoon.mio9ecge.name:2053
shamoon.mio9ecge.name:2083
shamoon.mio9ecge.name:2087
shamoon.mio9ecge.name:2096
shamoon.mio9ecge.name:8443
triton.mio9ecge.name:80
triton.mio9ecge.name:22
triton.mio9ecge.name:8080
triton.mio9ecge.name:8880
triton.mio9ecge.name:2052
triton.mio9ecge.name:2082
triton.mio9ecge.name:2086
triton.mio9ecge.name:2095
triton.mio9ecge.name:443
triton.mio9ecge.name:2053
triton.mio9ecge.name:2083
triton.mio9ecge.name:2087
triton.mio9ecge.name:2096
triton.mio9ecge.name:8443

Mutex

9knHHKrjocf6

Attributes

delay
0
install
true
install_file
dfpcfn1.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/0x002300000001c2ca-11.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2860	dfpcfn1.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
3916	cmd.exe
4132	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	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	dfpcfn1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5128	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
1496	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4796 wrote to memory of 4132	4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe	89
PID 4796 wrote to memory of 3916	4796	1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe	91
PID 4132 wrote to memory of 1496	4132	cmd.exe	93
PID 3916 wrote to memory of 5128	3916	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe
"C:\Users\Admin\AppData\Local\Temp\1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "dfpcfn1" /tr '"C:\Users\Admin\AppData\Roaming\dfpcfn1.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4132
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "dfpcfn1" /tr '"C:\Users\Admin\AppData\Roaming\dfpcfn1.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1496
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp51EF.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3916
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5128
- - C:\Users\Admin\AppData\Roaming\dfpcfn1.exe
    "C:\Users\Admin\AppData\Roaming\dfpcfn1.exe"
    3⤵
    PID:5484

C:\Users\Admin\AppData\Roaming\dfpcfn1.exe
"C:\Users\Admin\AppData\Roaming\dfpcfn1.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2860

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

tmp51EF.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp51EF.tmp.bat
Size 151B
SHA256 8bdad8b84bbbbe13fe1fb8815da84e93d71132489fc594cf5be7bef8e1baf2dc
MD5 1c8bbe1497a6996b412c8185f803eb1d
SHA1 cb6f2f82690db246990df5dffb1965c8049c06d5
SHA512 db155726bcf254194b099a5d6be6fbeee6553804672b3e4e1034b9dcc0157bb0ebaaa998ec4cbfc71012d52af00f8478064ce8671e6f2fcf10c62d1c70adf8fb
TLSH
T12EC02B7261C9EB5E3C0D241312FAD98C91766D2A3F40FF10C784408E5690498F0EE341
MD5 SHA1 SHA512 TLSH

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dfpcfn1.exe

Path C:\Users\Admin\AppData\Roaming\dfpcfn1.exe
Size 45KB
SHA256 1a71da90fd909ee525d0e3057004193743e933674b040b8ce1ae6f96019d2a2d
MD5 970b2e2958f9715ebfddb5a55a06ee0d
SHA1 caa7a385457099c8b987deca8d284cfc4c3e7a42
SHA512 86f0abf0c2d334c75207b8a8630938c71a8a3815c3f7bac27ec6a4ae1dc42d5ac6ae16a4dde99038e97a27dc45f061d5ec851073958905f975883f2c2b1907b5
SSDEEP 768:EufspTfzcR6uWUcb+wmo2q9kIz/yPqiPIMzjb6gX3i7nCHCnFzi0QUUtSBDZsx:EufspTf2g2/c5M3btXS7CiFzigpdsx
TLSH
T1FF233B003BEDC12BF2BF5B78ADF26145467AB6632603D54D1CC4119B5623FC68A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2860-12-0x0000000074F20000-0x00000000756DC000-memory.dmp

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memory/2860-14-0x0000000074F20000-0x00000000756DC000-memory.dmp

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memory/4796-0-0x0000000075132000-0x0000000075133000-memory.dmp

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memory/4796-1-0x00000000007B0000-0x00000000007C2000-memory.dmp

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memory/4796-2-0x0000000075120000-0x00000000758DC000-memory.dmp

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memory/4796-3-0x0000000005310000-0x00000000053AC000-memory.dmp

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memory/4796-8-0x0000000075120000-0x00000000758DC000-memory.dmp

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