asyncrat | 1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1

Analysis

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

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
11/07/2026, 04:41

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General

Target
1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
Size 45KB
Sample260711-fa43jsdz9z
SHA256 1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1
MD5 199e40f5d5a4169c8d75a5aae3482442
SHA1 f10930bdf05aeb36fa78e7ecd8836e77a2e8f515
SHA512 5fb01a6f0807bc519b0ddb96854d3a89ebd34d92b948d3456413ce7735b1c50a62fde5fe12fd24043f0191e9ea9dd8161b3cc6fe483783721369caffd8f3820f
SSDEEP 768:EufspTfzcR6uWUcb+wmo2q9IQ6vincPI96jbNgX3iN21QVNesBDZsx:EufspTf2g2sKU9WbaXSN2+neqdsx
TLSH
T1ED231A1037E8C127E2BE5F789DF26145867AF6637A03D6491CC412DB1713BC68A426FE
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.work:80
phimsexvn.work:22
phimsexvn.work:8080
phimsexvn.work:8880
phimsexvn.work:2052
phimsexvn.work:2082
phimsexvn.work:2086
phimsexvn.work:2095
phimsexvn.work:443
phimsexvn.work:2053
phimsexvn.work:2083
phimsexvn.work:2087
phimsexvn.work:2096
phimsexvn.work:8443
www.phimsexvn.work:80
www.phimsexvn.work:22
www.phimsexvn.work:8080
www.phimsexvn.work:8880
www.phimsexvn.work:2052
www.phimsexvn.work:2082
www.phimsexvn.work:2086
www.phimsexvn.work:2095
www.phimsexvn.work:443
www.phimsexvn.work:2053
www.phimsexvn.work:2083
www.phimsexvn.work:2087
www.phimsexvn.work:2096
www.phimsexvn.work:8443
gozi.phimsexvn.work:80
gozi.phimsexvn.work:22
gozi.phimsexvn.work:8080
gozi.phimsexvn.work:8880
gozi.phimsexvn.work:2052
gozi.phimsexvn.work:2082
gozi.phimsexvn.work:2086
gozi.phimsexvn.work:2095
gozi.phimsexvn.work:443
gozi.phimsexvn.work:2053
gozi.phimsexvn.work:2083
gozi.phimsexvn.work:2087
gozi.phimsexvn.work:2096
gozi.phimsexvn.work:8443
downadup.phimsexvn.work:80
downadup.phimsexvn.work:22
downadup.phimsexvn.work:8080
downadup.phimsexvn.work:8880
downadup.phimsexvn.work:2052
downadup.phimsexvn.work:2082
downadup.phimsexvn.work:2086
downadup.phimsexvn.work:2095
downadup.phimsexvn.work:443
downadup.phimsexvn.work:2053
downadup.phimsexvn.work:2083
downadup.phimsexvn.work:2087
downadup.phimsexvn.work:2096
downadup.phimsexvn.work:8443
zbot.phimsexvn.work:80
zbot.phimsexvn.work:22
zbot.phimsexvn.work:8080
zbot.phimsexvn.work:8880
zbot.phimsexvn.work:2052
zbot.phimsexvn.work:2082
zbot.phimsexvn.work:2086
zbot.phimsexvn.work:2095
zbot.phimsexvn.work:443
zbot.phimsexvn.work:2053
zbot.phimsexvn.work:2083
zbot.phimsexvn.work:2087
zbot.phimsexvn.work:2096
zbot.phimsexvn.work:8443

Mutex

qHrDXim8drDd

Attributes

delay
0
install
true
install_file
jy3uv5e.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/0x001b00000001c343-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1056	jy3uv5e.exe
3016	jy3uv5e.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	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.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	jy3uv5e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jy3uv5e.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3248	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
5384	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
Token: SeDebugPrivilege	1056	jy3uv5e.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1076 wrote to memory of 3456	1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe	87
PID 1076 wrote to memory of 3908	1076	1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe	89
PID 3456 wrote to memory of 5384	3456	cmd.exe	91
PID 3908 wrote to memory of 3248	3908	cmd.exe	92
PID 3908 wrote to memory of 3016	3908	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe
"C:\Users\Admin\AppData\Local\Temp\1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "jy3uv5e" /tr '"C:\Users\Admin\AppData\Roaming\jy3uv5e.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3456
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "jy3uv5e" /tr '"C:\Users\Admin\AppData\Roaming\jy3uv5e.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5384
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5F2D.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3908
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3248
- - C:\Users\Admin\AppData\Roaming\jy3uv5e.exe
    "C:\Users\Admin\AppData\Roaming\jy3uv5e.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3016

C:\Users\Admin\AppData\Roaming\jy3uv5e.exe
"C:\Users\Admin\AppData\Roaming\jy3uv5e.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1056

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

tmp5F2D.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp5F2D.tmp.bat
Size 151B
SHA256 bedb04ba2bfc0f8c9105f6ac434702e9c1aeb74ede51e51fdf93b0cd0d29d6dd
MD5 6b5706e901ca54d4c7944e2c11cd27c1
SHA1 b6a69f6c29409cd7286491b9d466a6cbfd15355a
SHA512 e933ca31bd9ffe9290e5cc861fbb5e4c4f2d63ffc35d343ab937835fcf13674dbacab526448aefec0f279f953bf7aafb4f7231992ca5380ba0a6449844e2b7f1
TLSH
T114C02B83A5C5EE0F2905245303FEED8C91B26D9A3F40BB00C704441E3380448F0ED342
MD5 SHA1 SHA512 TLSH

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jy3uv5e.exe

Path C:\Users\Admin\AppData\Roaming\jy3uv5e.exe
Size 45KB
SHA256 1bbe04a72d2c28d1dc9b4a9c2530754ffb692324f9d917a1610b11b0a261d4c1
MD5 199e40f5d5a4169c8d75a5aae3482442
SHA1 f10930bdf05aeb36fa78e7ecd8836e77a2e8f515
SHA512 5fb01a6f0807bc519b0ddb96854d3a89ebd34d92b948d3456413ce7735b1c50a62fde5fe12fd24043f0191e9ea9dd8161b3cc6fe483783721369caffd8f3820f
SSDEEP 768:EufspTfzcR6uWUcb+wmo2q9IQ6vincPI96jbNgX3iN21QVNesBDZsx:EufspTf2g2sKU9WbaXSN2+neqdsx
TLSH
T1ED231A1037E8C127E2BE5F789DF26145867AF6637A03D6491CC412DB1713BC68A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1056-12-0x0000000074600000-0x0000000074DBC000-memory.dmp

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memory/1056-14-0x0000000074600000-0x0000000074DBC000-memory.dmp

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memory/1076-0-0x00000000747D2000-0x00000000747D3000-memory.dmp

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memory/1076-1-0x0000000000B50000-0x0000000000B62000-memory.dmp

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memory/1076-2-0x00000000747C0000-0x0000000074F7C000-memory.dmp

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memory/1076-3-0x00000000056F0000-0x000000000578C000-memory.dmp

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memory/1076-8-0x00000000747C0000-0x0000000074F7C000-memory.dmp

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