asyncrat | 46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca

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, 11:30

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General

Target
46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
Size 45KB
Sample260710-nl92yaav6p
SHA256 46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca
MD5 22469c1aead0e3bf4973f0e58422cb43
SHA1 902542917c70d8add4eb398535d7da555a33d67a
SHA512 11cb1494ae404fd09193a2d0ca3643ea1c304cb0ceed74c98515989840b90147a8ed046db6d8c6b7e837cc2cdaf6fdf9e0d393d224db135491d5e01e2453d131
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlTSAFcKoabbb4ZhM/RPIAEzjbIgX3iav0YUGrXyo:wuDWZTpMZSB2YSAvQZh6OAE3bfXSav17
TLSH
T199232B003BE9C12BF2BF4FB859F26245867AF2633603D54E1CC4519B5613FC69A42AED
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
notpetya.fimsec.com:80
notpetya.fimsec.com:22
notpetya.fimsec.com:8080
notpetya.fimsec.com:8880
notpetya.fimsec.com:2052
notpetya.fimsec.com:2082
notpetya.fimsec.com:2086
notpetya.fimsec.com:2095
notpetya.fimsec.com:443
notpetya.fimsec.com:2053
notpetya.fimsec.com:2083
notpetya.fimsec.com:2087
notpetya.fimsec.com:2096
notpetya.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

Mutex

oo3SS0RIdSZZ

Attributes

delay
0
install
true
install_file
r7wwy.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/0x001200000001c450-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4588	r7wwy.exe
2284	r7wwy.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	r7wwy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	r7wwy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2108	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
5848	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
Token: SeDebugPrivilege	4588	r7wwy.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3532 wrote to memory of 4368	3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe	87
PID 3532 wrote to memory of 3496	3532	46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe	89
PID 4368 wrote to memory of 5848	4368	cmd.exe	91
PID 3496 wrote to memory of 2108	3496	cmd.exe	92
PID 3496 wrote to memory of 2284	3496	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe
"C:\Users\Admin\AppData\Local\Temp\46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "r7wwy" /tr '"C:\Users\Admin\AppData\Roaming\r7wwy.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4368
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "r7wwy" /tr '"C:\Users\Admin\AppData\Roaming\r7wwy.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5848
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpFD76.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3496
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2108
- - C:\Users\Admin\AppData\Roaming\r7wwy.exe
    "C:\Users\Admin\AppData\Roaming\r7wwy.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2284

C:\Users\Admin\AppData\Roaming\r7wwy.exe
"C:\Users\Admin\AppData\Roaming\r7wwy.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4588

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

tmpFD76.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpFD76.tmp.bat
Size 149B
SHA256 72fae5a9caea69404f76a5529bdc6beede2a4793f3d7ed8ffd349fe794496441
MD5 9eca2da049f1a0b064d15b29263306b3
SHA1 8de6f4200cdb879554b6297b000deebd35a7bd82
SHA512 6d6eeb68e05df1a489b18f59ab2d3dde92402f79766f1ccb00054ebdb80fa03eaa48cff7268875f5221e9e0faf9d1abeb925c8d0cd8e5e787eb3845a94e8a5bf
TLSH
T1EDC08C42A1C6AA0E3906141312BA95CCA162691A3E80AB40834484496280858F09A281
MD5 SHA1 SHA512 TLSH

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r7wwy.exe

Path C:\Users\Admin\AppData\Roaming\r7wwy.exe
Size 45KB
SHA256 46f45f4aee5ab559d6b0aacefb2dbd1cf170252f33f9ffb873d7cc29f3a656ca
MD5 22469c1aead0e3bf4973f0e58422cb43
SHA1 902542917c70d8add4eb398535d7da555a33d67a
SHA512 11cb1494ae404fd09193a2d0ca3643ea1c304cb0ceed74c98515989840b90147a8ed046db6d8c6b7e837cc2cdaf6fdf9e0d393d224db135491d5e01e2453d131
SSDEEP 768:wuDWZTpw7bmaWUg3gSk0mo2qlTSAFcKoabbb4ZhM/RPIAEzjbIgX3iav0YUGrXyo:wuDWZTpMZSB2YSAvQZh6OAE3bfXSav17
TLSH
T199232B003BE9C12BF2BF4FB859F26245867AF2633603D54E1CC4519B5613FC69A42AED
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3532-0-0x0000000074EE2000-0x0000000074EE3000-memory.dmp

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memory/3532-1-0x00000000005A0000-0x00000000005B2000-memory.dmp

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memory/3532-2-0x0000000074ED0000-0x000000007568C000-memory.dmp

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memory/3532-3-0x00000000050E0000-0x000000000517C000-memory.dmp

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memory/3532-8-0x0000000074ED0000-0x000000007568C000-memory.dmp

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memory/4588-12-0x0000000074D60000-0x000000007551C000-memory.dmp

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memory/4588-14-0x0000000074D60000-0x000000007551C000-memory.dmp

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