Overview

overview

10

Static

static

1

service.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    service.exe

  • Size

    284KB

  • Sample

    230403-q99r7afb58

  • MD5

    e6b48ad5c49a697bfb3c84575357d01b

  • SHA1

    7e5895a67df33cc67bb6fb75724e2093bea9a242

  • SHA256

    1ed516d9917b709dd5dbdb6ca991e37cff7241b6f66af51ae98bd1cce3c6cb38

  • SHA512

    0c863593c355c2d5775daf1d4c34b6f35537c82d48abd912e65ee423e073d543d6aeac11186e7857b74b6c98eed7fb060829946d2bdca195dee27aea4cb4e9ec

  • SSDEEP

    6144:7gZiAEAO0sByNsAal3gVAWgS7/OhwjKfqMe:7gZXEAO/BUdG3gVdt7KnfqMe

Score
10/10
asyncratdefaultevasionrat

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://pastebin.com/raw/TsGkGCyE

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

Mutex

Mutex

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/eSp7rncc

aes.plain

Targets

    • Target

      service.exe

    • Size

      284KB

    • MD5

      e6b48ad5c49a697bfb3c84575357d01b

    • SHA1

      7e5895a67df33cc67bb6fb75724e2093bea9a242

    • SHA256

      1ed516d9917b709dd5dbdb6ca991e37cff7241b6f66af51ae98bd1cce3c6cb38

    • SHA512

      0c863593c355c2d5775daf1d4c34b6f35537c82d48abd912e65ee423e073d543d6aeac11186e7857b74b6c98eed7fb060829946d2bdca195dee27aea4cb4e9ec

    • SSDEEP

      6144:7gZiAEAO0sByNsAal3gVAWgS7/OhwjKfqMe:7gZXEAO/BUdG3gVdt7KnfqMe

    Score
    10/10
    asyncratdefaultevasionrat

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

      ratasyncrat

    • Async RAT payload

      rat

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2
T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks