asyncrat | e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585

Analysis

max time kernel
148s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/07/2026, 11:17

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General

Target
e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
Size 45KB
Sample260710-nd46qabs6v
SHA256 e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585
MD5 228aa4062f769f6f98b8f730bf654788
SHA1 70c48aec67b3c7bca9deacd898b45bbbe554b38d
SHA512 867a5c79f1035b05d4aef394bb20c84f736437821d9ef87e14b499c8b299cbccf81f0954cc27ed87e041f79578f1cb24c5d7110959c90eb39e2dcf9e948fd504
SSDEEP 768:cuR0JTPUYkEWUmjWymo2q1nfPLyTObvtkjZPIizjbdgXui2wQyj0ABDZUx:cuR0JTPjY2Of2TyyjWi3bKXX8Q0WdUx
TLSH
T171232B0037E9812BF2BE4FB89CF26145867AF6633603E54A1CC451DB5B13FC68A426ED
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

fimsec.com:80
fimsec.com:22
fimsec.com:8080
fimsec.com:8880
fimsec.com:2052
fimsec.com:2082
fimsec.com:2086
fimsec.com:2095
fimsec.com:443
fimsec.com:2053
fimsec.com:2083
fimsec.com:2087
fimsec.com:2096
fimsec.com:8443
www.fimsec.com:80
www.fimsec.com:22
www.fimsec.com:8080
www.fimsec.com:8880
www.fimsec.com:2052
www.fimsec.com:2082
www.fimsec.com:2086
www.fimsec.com:2095
www.fimsec.com:443
www.fimsec.com:2053
www.fimsec.com:2083
www.fimsec.com:2087
www.fimsec.com:2096
www.fimsec.com:8443
klez.fimsec.com:80
klez.fimsec.com:22
klez.fimsec.com:8080
klez.fimsec.com:8880
klez.fimsec.com:2052
klez.fimsec.com:2082
klez.fimsec.com:2086
klez.fimsec.com:2095
klez.fimsec.com:443
klez.fimsec.com:2053
klez.fimsec.com:2083
klez.fimsec.com:2087
klez.fimsec.com:2096
klez.fimsec.com:8443
malware.fimsec.com:80
malware.fimsec.com:22
malware.fimsec.com:8080
malware.fimsec.com:8880
malware.fimsec.com:2052
malware.fimsec.com:2082
malware.fimsec.com:2086
malware.fimsec.com:2095
malware.fimsec.com:443
malware.fimsec.com:2053
malware.fimsec.com:2083
malware.fimsec.com:2087
malware.fimsec.com:2096
malware.fimsec.com:8443
iloveyou.fimsec.com:80
iloveyou.fimsec.com:22
iloveyou.fimsec.com:8080
iloveyou.fimsec.com:8880
iloveyou.fimsec.com:2052
iloveyou.fimsec.com:2082
iloveyou.fimsec.com:2086
iloveyou.fimsec.com:2095
iloveyou.fimsec.com:443
iloveyou.fimsec.com:2053
iloveyou.fimsec.com:2083
iloveyou.fimsec.com:2087
iloveyou.fimsec.com:2096
iloveyou.fimsec.com:8443

Mutex

6GMuOJ79Xz27

Attributes

delay
0
install
true
install_file
1ksp.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/0x000e00000001c505-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3196	1ksp.exe
5092	1ksp.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	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	1ksp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1ksp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4980	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
3208	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
Token: SeDebugPrivilege	3196	1ksp.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 624 wrote to memory of 2704	624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe	87
PID 624 wrote to memory of 5940	624	e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe	89
PID 2704 wrote to memory of 3208	2704	cmd.exe	91
PID 5940 wrote to memory of 4980	5940	cmd.exe	92
PID 5940 wrote to memory of 5092	5940	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe
"C:\Users\Admin\AppData\Local\Temp\e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:624
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "1ksp" /tr '"C:\Users\Admin\AppData\Roaming\1ksp.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2704
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "1ksp" /tr '"C:\Users\Admin\AppData\Roaming\1ksp.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3208
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp3762.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5940
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4980
- - C:\Users\Admin\AppData\Roaming\1ksp.exe
    "C:\Users\Admin\AppData\Roaming\1ksp.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5092

C:\Users\Admin\AppData\Roaming\1ksp.exe
"C:\Users\Admin\AppData\Roaming\1ksp.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

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

tmp3762.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp3762.tmp.bat
Size 148B
SHA256 0c4a1c79eb5adc583f85c89e46fe8c851697173428ff91c984c7f1259e1a0cc7
MD5 52f360876dfb126c384f442b80f456ac
SHA1 a4fac12ce1b1d42c128a85a36c6723bd59f27204
SHA512 ba67fa9f2877ca38a2ba72199de3289278fe6e907af09624e7afdd026c21ce50022e2d1753dc6095187d3342efd5c29b0db9174a0d7277ccbdd3b22187580bb5
TLSH
T190C02B9391C5EE0E3C0524230AFBE78CA1766C593F40BB00CB08440D3380C88F0DD341
MD5 SHA1 SHA512 TLSH

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1ksp.exe

Path C:\Users\Admin\AppData\Roaming\1ksp.exe
Size 45KB
SHA256 e7d04a245b5716ff2045eb2d3f84c72e8758d671a73872d02e1c9ff0243ba585
MD5 228aa4062f769f6f98b8f730bf654788
SHA1 70c48aec67b3c7bca9deacd898b45bbbe554b38d
SHA512 867a5c79f1035b05d4aef394bb20c84f736437821d9ef87e14b499c8b299cbccf81f0954cc27ed87e041f79578f1cb24c5d7110959c90eb39e2dcf9e948fd504
SSDEEP 768:cuR0JTPUYkEWUmjWymo2q1nfPLyTObvtkjZPIizjbdgXui2wQyj0ABDZUx:cuR0JTPjY2Of2TyyjWi3bKXX8Q0WdUx
TLSH
T171232B0037E9812BF2BE4FB89CF26145867AF6633603E54A1CC451DB5B13FC68A426ED
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/624-0-0x0000000074C32000-0x0000000074C33000-memory.dmp

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memory/624-1-0x0000000000300000-0x0000000000312000-memory.dmp

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memory/624-2-0x0000000074C20000-0x00000000753DC000-memory.dmp

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memory/624-3-0x0000000004F00000-0x0000000004F9C000-memory.dmp

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memory/624-8-0x0000000074C20000-0x00000000753DC000-memory.dmp

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memory/3196-12-0x0000000074A20000-0x00000000751DC000-memory.dmp

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memory/3196-14-0x0000000074A20000-0x00000000751DC000-memory.dmp

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