asyncrat | 456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f

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
17/07/2026, 17:19

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General

Target
456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
Size 45KB
Sample260717-vvytlact9v
SHA256 456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f
MD5 cff9415a1a4dac7f23a6ffb382eacc38
SHA1 f2193684afcc3d87d9eecb3fddced36a0e0b61d6
SHA512 2fc3986cf3317c3085475284e4889764476fc08272de5ed6a69f2a15a7d767b46b08697870941ba167632986f4e307461f4376d9919ba617a22b882c525d2682
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlneeXK5o5TN8/nPI6EzjbzgX3iJGCq9VDWSi/2B8:wuDWZTpMZSB2DeEoTNKA6E3bsXSm9Rsj
TLSH
T137231A003BE8822BF2BF4F7899F26145867AF1633603D58A1CC4519B5613FC6DA526FE
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

phimsexvn.mobi:80
phimsexvn.mobi:22
phimsexvn.mobi:8080
phimsexvn.mobi:8880
phimsexvn.mobi:2052
phimsexvn.mobi:2082
phimsexvn.mobi:2086
phimsexvn.mobi:2095
phimsexvn.mobi:443
phimsexvn.mobi:2053
phimsexvn.mobi:2083
phimsexvn.mobi:2087
phimsexvn.mobi:2096
phimsexvn.mobi:8443
www.phimsexvn.mobi:80
www.phimsexvn.mobi:22
www.phimsexvn.mobi:8080
www.phimsexvn.mobi:8880
www.phimsexvn.mobi:2052
www.phimsexvn.mobi:2082
www.phimsexvn.mobi:2086
www.phimsexvn.mobi:2095
www.phimsexvn.mobi:443
www.phimsexvn.mobi:2053
www.phimsexvn.mobi:2083
www.phimsexvn.mobi:2087
www.phimsexvn.mobi:2096
www.phimsexvn.mobi:8443
downadup.phimsexvn.mobi:80
downadup.phimsexvn.mobi:22
downadup.phimsexvn.mobi:8080
downadup.phimsexvn.mobi:8880
downadup.phimsexvn.mobi:2052
downadup.phimsexvn.mobi:2082
downadup.phimsexvn.mobi:2086
downadup.phimsexvn.mobi:2095
downadup.phimsexvn.mobi:443
downadup.phimsexvn.mobi:2053
downadup.phimsexvn.mobi:2083
downadup.phimsexvn.mobi:2087
downadup.phimsexvn.mobi:2096
downadup.phimsexvn.mobi:8443
conti.phimsexvn.mobi:80
conti.phimsexvn.mobi:22
conti.phimsexvn.mobi:8080
conti.phimsexvn.mobi:8880
conti.phimsexvn.mobi:2052
conti.phimsexvn.mobi:2082
conti.phimsexvn.mobi:2086
conti.phimsexvn.mobi:2095
conti.phimsexvn.mobi:443
conti.phimsexvn.mobi:2053
conti.phimsexvn.mobi:2083
conti.phimsexvn.mobi:2087
conti.phimsexvn.mobi:2096
conti.phimsexvn.mobi:8443

Mutex

dlKJWu4Y7KnK

Attributes

delay
0
install
true
install_file
7m59u.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/0x000e00000001c4e4-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3196	7m59u.exe
1516	7m59u.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
1288	cmd.exe
3380	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	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7m59u.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7m59u.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
1928	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
6032	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
Token: SeDebugPrivilege	3196	7m59u.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 1288	2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe	89
PID 2420 wrote to memory of 3380	2420	456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe	91
PID 1288 wrote to memory of 6032	1288	cmd.exe	93
PID 3380 wrote to memory of 1928	3380	cmd.exe	94
PID 3380 wrote to memory of 1516	3380	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe
"C:\Users\Admin\AppData\Local\Temp\456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "7m59u" /tr '"C:\Users\Admin\AppData\Roaming\7m59u.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1288
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "7m59u" /tr '"C:\Users\Admin\AppData\Roaming\7m59u.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:6032
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp90E.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3380
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1928
- - C:\Users\Admin\AppData\Roaming\7m59u.exe
    "C:\Users\Admin\AppData\Roaming\7m59u.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1516

C:\Users\Admin\AppData\Roaming\7m59u.exe
"C:\Users\Admin\AppData\Roaming\7m59u.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3196

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

tmp90E.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp90E.tmp.bat
Size 148B
SHA256 96187133d323ff4a96a7e8c5870d4b0248929baf800aef3dad52df94c2d92ef5
MD5 c974d9d9cd2bf890a33a0a3cf408ada4
SHA1 e0657ae9eaa0acc03c1a0f91a909944d29a5b00e
SHA512 aa0fbc41525d9c4a46614920c0dd9e34c182a59c359c09a7db6824c123d4d69c39fb8f3d6f39ea56aeec52224ea55f47bfded09aec95b2bb4e2f5cbb3e45e4eb
TLSH
T1B4C02B5255C5EA2F2D09141312FAD89D91736C593F44BF40C344800D6280448F0DA341
MD5 SHA1 SHA512 TLSH

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7m59u.exe

Path C:\Users\Admin\AppData\Roaming\7m59u.exe
Size 45KB
SHA256 456ca35b5fdf11308f843aeffdb4a9248e5590a803e7c215593fe1944925085f
MD5 cff9415a1a4dac7f23a6ffb382eacc38
SHA1 f2193684afcc3d87d9eecb3fddced36a0e0b61d6
SHA512 2fc3986cf3317c3085475284e4889764476fc08272de5ed6a69f2a15a7d767b46b08697870941ba167632986f4e307461f4376d9919ba617a22b882c525d2682
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlneeXK5o5TN8/nPI6EzjbzgX3iJGCq9VDWSi/2B8:wuDWZTpMZSB2DeEoTNKA6E3bsXSm9Rsj
TLSH
T137231A003BE8822BF2BF4F7899F26145867AF1633603D58A1CC4519B5613FC6DA526FE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2420-0-0x00000000744C2000-0x00000000744C3000-memory.dmp

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memory/2420-1-0x0000000000140000-0x0000000000152000-memory.dmp

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memory/2420-2-0x00000000744B0000-0x0000000074C6C000-memory.dmp

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memory/2420-3-0x0000000004D00000-0x0000000004D9C000-memory.dmp

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memory/2420-8-0x00000000744B0000-0x0000000074C6C000-memory.dmp

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memory/3196-12-0x0000000074340000-0x0000000074AFC000-memory.dmp

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memory/3196-14-0x0000000074340000-0x0000000074AFC000-memory.dmp

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