asyncrat | 97bcb3cf1635ae5e69e4b244c02217a4a07cc003c11b7cf307efb1f7c84658d6

Analysis

max time kernel
60s
max time network
63s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
16/08/2026, 20:39

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General

Target
97bcb3cf1635ae5e69e4b244c02217a4a07cc003c11b7cf307efb1f7c84658d6.exe
Size 45KB
Sample260816-zfdmbsxane
SHA256 97bcb3cf1635ae5e69e4b244c02217a4a07cc003c11b7cf307efb1f7c84658d6
MD5 2f01df990aeb6e7e80a9ca474abb2691
SHA1 68535198aa2b0c1394533ee05607fca1e32fa41f
SHA512 453736fe929e6ec4a43cb467ad9a2cdc84958df978e0d4e80dab7de3b37731ff1b15eb62e177f9fe734df55e5ef33c7969af6489e47e6dcf620200baad029619
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q9zzjHynaKPIsEjbzgX3i1S2rin65xknv+RBDZ8x:0uPrpT/qY2QnZsEbsXSI2txkmd8x
TLSH
T161232B003BE9C12BF2BE5F78ADE26145467AF6633603C64A1CC411DB5613FC68A426FE
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

streamforester.name:80
streamforester.name:22
streamforester.name:8080
streamforester.name:8880
streamforester.name:2052
streamforester.name:2082
streamforester.name:2086
streamforester.name:2095
streamforester.name:443
streamforester.name:2053
streamforester.name:2083
streamforester.name:2087
streamforester.name:2096
streamforester.name:8443
www.streamforester.name:80
www.streamforester.name:22
www.streamforester.name:8080
www.streamforester.name:8880
www.streamforester.name:2052
www.streamforester.name:2082
www.streamforester.name:2086
www.streamforester.name:2095
www.streamforester.name:443
www.streamforester.name:2053
www.streamforester.name:2083
www.streamforester.name:2087
www.streamforester.name:2096
www.streamforester.name:8443
zbot.streamforester.name:80
zbot.streamforester.name:22
zbot.streamforester.name:8080
zbot.streamforester.name:8880
zbot.streamforester.name:2052
zbot.streamforester.name:2082
zbot.streamforester.name:2086
zbot.streamforester.name:2095
zbot.streamforester.name:443
zbot.streamforester.name:2053
zbot.streamforester.name:2083
zbot.streamforester.name:2087
zbot.streamforester.name:2096
zbot.streamforester.name:8443
remcos.streamforester.name:80
remcos.streamforester.name:22
remcos.streamforester.name:8080
remcos.streamforester.name:8880
remcos.streamforester.name:2052
remcos.streamforester.name:2082
remcos.streamforester.name:2086
remcos.streamforester.name:2095
remcos.streamforester.name:443
remcos.streamforester.name:2053
remcos.streamforester.name:2083
remcos.streamforester.name:2087
remcos.streamforester.name:2096
remcos.streamforester.name:8443

Mutex

NnTXU2JkiCSi

Attributes

delay
0
install
true
install_file
0e7u8k9.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 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
4204	cmd.exe
3256	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	97bcb3cf1635ae5e69e4b244c02217a4a07cc003c11b7cf307efb1f7c84658d6.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
1992	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
2160	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\97bcb3cf1635ae5e69e4b244c02217a4a07cc003c11b7cf307efb1f7c84658d6.exe
"C:\Users\Admin\AppData\Local\Temp\97bcb3cf1635ae5e69e4b244c02217a4a07cc003c11b7cf307efb1f7c84658d6.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:1920
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "0e7u8k9" /tr '"C:\Users\Admin\AppData\Roaming\0e7u8k9.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  PID:3256
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "0e7u8k9" /tr '"C:\Users\Admin\AppData\Roaming\0e7u8k9.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2160
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA55E.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  PID:4204
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1992
- - C:\Users\Admin\AppData\Roaming\0e7u8k9.exe
    "C:\Users\Admin\AppData\Roaming\0e7u8k9.exe"
    3⤵
    PID:5648

C:\Users\Admin\AppData\Roaming\0e7u8k9.exe
"C:\Users\Admin\AppData\Roaming\0e7u8k9.exe"
1⤵
PID:1008

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmpA55E.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpA55E.tmp.bat
Size 151B
SHA256 bbfe23677a8256aeec7b0c519ede4e53ed2534b2ef3ece8f4ae44a8968730143
MD5 f2ba90d562bfe0d1f98ed4e873b41d3c
SHA1 905389c470b01ff692bdbdcf2807917de522cd00
SHA512 5a74c544b748584c6e6087bb1a78818b10601747e13151aa77add52719b16d5b98fb8e3b6e07b1e1537d9438ec1d4d494f03ac4a63ba92f239c3ea19cae9e088
TLSH
T128C08C426AC5AA0FA906542302FAD88D9172A8593F44EF508748481A2280859E099246
MD5 SHA1 SHA512 TLSH

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0e7u8k9.exe

Path C:\Users\Admin\AppData\Roaming\0e7u8k9.exe
Size 45KB
SHA256 97bcb3cf1635ae5e69e4b244c02217a4a07cc003c11b7cf307efb1f7c84658d6
MD5 2f01df990aeb6e7e80a9ca474abb2691
SHA1 68535198aa2b0c1394533ee05607fca1e32fa41f
SHA512 453736fe929e6ec4a43cb467ad9a2cdc84958df978e0d4e80dab7de3b37731ff1b15eb62e177f9fe734df55e5ef33c7969af6489e47e6dcf620200baad029619
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q9zzjHynaKPIsEjbzgX3i1S2rin65xknv+RBDZ8x:0uPrpT/qY2QnZsEbsXSI2txkmd8x
TLSH
T161232B003BE9C12BF2BE5F78ADE26145467AF6633603C64A1CC411DB5613FC68A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1008-12-0x0000000074510000-0x0000000074CCC000-memory.dmp

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memory/1008-14-0x0000000074510000-0x0000000074CCC000-memory.dmp

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memory/1920-0-0x0000000074692000-0x0000000074693000-memory.dmp

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memory/1920-1-0x00000000007C0000-0x00000000007D2000-memory.dmp

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memory/1920-2-0x0000000074680000-0x0000000074E3C000-memory.dmp

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memory/1920-3-0x0000000005280000-0x000000000531C000-memory.dmp

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memory/1920-8-0x0000000074680000-0x0000000074E3C000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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