asyncrat | b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4

Analysis

max time kernel
148s
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
20/07/2026, 14:28

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General

Target
b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
Size 45KB
Sample260720-rtf1lse161
SHA256 b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4
MD5 7d9d8d826ab28ebf3b43402afeac7317
SHA1 8c8024f722da5590933625aa41d888961de0a878
SHA512 c536f428d32ebd2664ac03ab7bd0ceea9bdf126dd33e6453a9c830b59c20b2a1a83667c01e8f5dd874b1889ed22f42da1c13f3b3c4336758ea9c2594ac6332ae
SSDEEP 768:EulCJTHESwgWUK3aGmo2q9VCXtTtoPIDzjbVgX3izIIqt6DSOaQoio3GBDZsx:EulCJTHl42qw3D3byXS89PLxYdsx
TLSH
T119232B0037E8C12BF2BE4F7899F26145867AF2673603D58E1CC4019B5623FC68A426FE
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

jikklimokmk125:80
jikklimokmk125:22
jikklimokmk125:8080
jikklimokmk125:8880
jikklimokmk125:2052
jikklimokmk125:2082
jikklimokmk125:2086
jikklimokmk125:2095
jikklimokmk125:443
jikklimokmk125:2053
jikklimokmk125:2083
jikklimokmk125:2087
jikklimokmk125:2096
jikklimokmk125:8443
www.jikklimokmk125:80
www.jikklimokmk125:22
www.jikklimokmk125:8080
www.jikklimokmk125:8880
www.jikklimokmk125:2052
www.jikklimokmk125:2082
www.jikklimokmk125:2086
www.jikklimokmk125:2095
www.jikklimokmk125:443
www.jikklimokmk125:2053
www.jikklimokmk125:2083
www.jikklimokmk125:2087
www.jikklimokmk125:2096
www.jikklimokmk125:8443
triton.jikklimokmk125:80
triton.jikklimokmk125:22
triton.jikklimokmk125:8080
triton.jikklimokmk125:8880
triton.jikklimokmk125:2052
triton.jikklimokmk125:2082
triton.jikklimokmk125:2086
triton.jikklimokmk125:2095
triton.jikklimokmk125:443
triton.jikklimokmk125:2053
triton.jikklimokmk125:2083
triton.jikklimokmk125:2087
triton.jikklimokmk125:2096
triton.jikklimokmk125:8443
formbook.jikklimokmk125:80
formbook.jikklimokmk125:22
formbook.jikklimokmk125:8080
formbook.jikklimokmk125:8880
formbook.jikklimokmk125:2052
formbook.jikklimokmk125:2082
formbook.jikklimokmk125:2086
formbook.jikklimokmk125:2095
formbook.jikklimokmk125:443
formbook.jikklimokmk125:2053
formbook.jikklimokmk125:2083
formbook.jikklimokmk125:2087
formbook.jikklimokmk125:2096
formbook.jikklimokmk125:8443
revil.jikklimokmk125:80
revil.jikklimokmk125:22
revil.jikklimokmk125:8080
revil.jikklimokmk125:8880
revil.jikklimokmk125:2052
revil.jikklimokmk125:2082
revil.jikklimokmk125:2086
revil.jikklimokmk125:2095
revil.jikklimokmk125:443
revil.jikklimokmk125:2053
revil.jikklimokmk125:2083
revil.jikklimokmk125:2087
revil.jikklimokmk125:2096
revil.jikklimokmk125:8443

Mutex

GffsNu9UleL2

Attributes

delay
0
install
true
install_file
r3ec71.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/0x0004000000016b4e-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4824	r3ec71.exe
1244	r3ec71.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
1560	cmd.exe
1812	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	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.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	r3ec71.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	r3ec71.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
6008	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
3024	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
Token: SeDebugPrivilege	4824	r3ec71.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4248 wrote to memory of 1560	4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe	89
PID 4248 wrote to memory of 1812	4248	b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe	91
PID 1560 wrote to memory of 3024	1560	cmd.exe	93
PID 1812 wrote to memory of 6008	1812	cmd.exe	94
PID 1812 wrote to memory of 1244	1812	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe
"C:\Users\Admin\AppData\Local\Temp\b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4248
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "r3ec71" /tr '"C:\Users\Admin\AppData\Roaming\r3ec71.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1560
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "r3ec71" /tr '"C:\Users\Admin\AppData\Roaming\r3ec71.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3024
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp85B1.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1812
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:6008
- - C:\Users\Admin\AppData\Roaming\r3ec71.exe
    "C:\Users\Admin\AppData\Roaming\r3ec71.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1244

C:\Users\Admin\AppData\Roaming\r3ec71.exe
"C:\Users\Admin\AppData\Roaming\r3ec71.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4824

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

tmp85B1.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp85B1.tmp.bat
Size 150B
SHA256 02af5a2f19f775a34e9a45c3116919c67b3f95a56eeb163a98008535412fc024
MD5 15fc08afbb7510690147f60c4308b49c
SHA1 365d0f51276368bdc1c2b88456f5bf0a2e49743f
SHA512 8638e36b15e0d49bfc2dbfe6d5a1362a47fed2c87ebd52e54f8129860fed6eae0955a99db1666922b6382a1637e8e988a37b986ce5a3de4db37bb7527ca30441
TLSH
T1F7C02B8265C9EE0F6C05546303FED48C91727E1D7F41BB10C344440D22C0848F0FA347
MD5 SHA1 SHA512 TLSH

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r3ec71.exe

Path C:\Users\Admin\AppData\Roaming\r3ec71.exe
Size 45KB
SHA256 b789601629db28d181346d97a3714d372eaf0c7de87f9e8cec0767aad6133bf4
MD5 7d9d8d826ab28ebf3b43402afeac7317
SHA1 8c8024f722da5590933625aa41d888961de0a878
SHA512 c536f428d32ebd2664ac03ab7bd0ceea9bdf126dd33e6453a9c830b59c20b2a1a83667c01e8f5dd874b1889ed22f42da1c13f3b3c4336758ea9c2594ac6332ae
SSDEEP 768:EulCJTHESwgWUK3aGmo2q9VCXtTtoPIDzjbVgX3izIIqt6DSOaQoio3GBDZsx:EulCJTHl42qw3D3byXS89PLxYdsx
TLSH
T119232B0037E8C12BF2BE4F7899F26145867AF2673603D58E1CC4019B5623FC68A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4248-0-0x0000000074E52000-0x0000000074E53000-memory.dmp

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memory/4248-1-0x0000000000960000-0x0000000000972000-memory.dmp

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memory/4248-2-0x0000000074E40000-0x00000000755FC000-memory.dmp

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memory/4248-3-0x0000000005450000-0x00000000054EC000-memory.dmp

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memory/4248-8-0x0000000074E40000-0x00000000755FC000-memory.dmp

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memory/4824-12-0x0000000074CD0000-0x000000007548C000-memory.dmp

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memory/4824-14-0x0000000074CD0000-0x000000007548C000-memory.dmp

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