asyncrat | 70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b

Analysis

max time kernel
148s
max time network
150s
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, 15:43

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General

Target
70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
Size 45KB
Sample260710-s6d78act4j
SHA256 70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b
MD5 2b7c496c81d18eef3426f9435b2b9f38
SHA1 289100778be411afe8fee5fcc17ecd73bf7c515f
SHA512 453440da6f336ce12f9a4643ef191ae01935a2819ca0aad850af07f869fcf9ef95337f477b9fa804d07e8a48671f87716e6a3c3236ec0414b94e2c643f1b8d3d
SSDEEP 768:4uLZZTUAoOSWUYZL8mo2qFl3xY6AZOOPILzjbHgg3ilSwXM8iE5Vk4BDZbx:4uLZZTUTn20ulO3L3bAgS0q/iAVk+dbx
TLSH
T114232A003BE8C12BF2BE4F78A9F26145467AF2A73603D5491CC451DB5B13BC69A426FE
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
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
locky.fimsec.com:80
locky.fimsec.com:22
locky.fimsec.com:8080
locky.fimsec.com:8880
locky.fimsec.com:2052
locky.fimsec.com:2082
locky.fimsec.com:2086
locky.fimsec.com:2095
locky.fimsec.com:443
locky.fimsec.com:2053
locky.fimsec.com:2083
locky.fimsec.com:2087
locky.fimsec.com:2096
locky.fimsec.com:8443

Mutex

fyCSgOFFR4Bi

Attributes

delay
0
install
true
install_file
ehoij.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/0x002400000001c2fc-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4100	ehoij.exe
3452	ehoij.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	ehoij.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.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	ehoij.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4804	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
5564	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
Token: SeDebugPrivilege	4100	ehoij.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3684 wrote to memory of 3708	3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe	87
PID 3684 wrote to memory of 2864	3684	70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe	89
PID 3708 wrote to memory of 5564	3708	cmd.exe	91
PID 2864 wrote to memory of 4804	2864	cmd.exe	92
PID 2864 wrote to memory of 3452	2864	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe
"C:\Users\Admin\AppData\Local\Temp\70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ehoij" /tr '"C:\Users\Admin\AppData\Roaming\ehoij.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3708
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "ehoij" /tr '"C:\Users\Admin\AppData\Roaming\ehoij.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5564
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE5E.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2864
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4804
- - C:\Users\Admin\AppData\Roaming\ehoij.exe
    "C:\Users\Admin\AppData\Roaming\ehoij.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3452

C:\Users\Admin\AppData\Roaming\ehoij.exe
"C:\Users\Admin\AppData\Roaming\ehoij.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4100

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

tmpE5E.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpE5E.tmp.bat
Size 148B
SHA256 ec2dafdfb0e751bc52f86ed3f14beae4ccdfc1effdb6e9a714e6493074f4c086
MD5 2183311d7b79b0fbef8f0db40357c8c0
SHA1 5a3ea8b20fb4c5f7420539d350d3d17a228ff9f5
SHA512 7eb5d17fcfdbde9c03a1660389ae62ddfab533564636a5e0492854121e67fccb1b4c3ac336d8ef24b7b9106ff3c64b6e40b7a6bd7eaf7a71d020068c093852e4
TLSH
T1E2C02B6255C7EA0F7A09542306FADD8D91B26C193F84BB40C308C40E13C0848F0EA343
MD5 SHA1 SHA512 TLSH

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ehoij.exe

Path C:\Users\Admin\AppData\Roaming\ehoij.exe
Size 45KB
SHA256 70343e0d7530e9a497574fa3d4aae4f7987cadfc5931d8010253c6d55f7d078b
MD5 2b7c496c81d18eef3426f9435b2b9f38
SHA1 289100778be411afe8fee5fcc17ecd73bf7c515f
SHA512 453440da6f336ce12f9a4643ef191ae01935a2819ca0aad850af07f869fcf9ef95337f477b9fa804d07e8a48671f87716e6a3c3236ec0414b94e2c643f1b8d3d
SSDEEP 768:4uLZZTUAoOSWUYZL8mo2qFl3xY6AZOOPILzjbHgg3ilSwXM8iE5Vk4BDZbx:4uLZZTUTn20ulO3L3bAgS0q/iAVk+dbx
TLSH
T114232A003BE8C12BF2BE4F78A9F26145467AF2A73603D5491CC451DB5B13BC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3684-0-0x00000000744B2000-0x00000000744B3000-memory.dmp

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memory/3684-1-0x0000000000F90000-0x0000000000FA2000-memory.dmp

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memory/3684-2-0x00000000744A0000-0x0000000074C5C000-memory.dmp

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memory/3684-3-0x0000000005AC0000-0x0000000005B5C000-memory.dmp

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memory/3684-8-0x00000000744A0000-0x0000000074C5C000-memory.dmp

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memory/4100-12-0x0000000074330000-0x0000000074AEC000-memory.dmp

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memory/4100-14-0x0000000074330000-0x0000000074AEC000-memory.dmp

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