Overview

overview

10

Static

static

10

winjs.exe

windows11-21h2-x64

10

winjs.exe

windows7-x64

10

winjs.exe

windows10-2004-x64

10

winjs.exe

windows10-ltsc 2021-x64

10

winjs.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    winjs.exe

  • Size

    52KB

  • Sample

    250130-p2vgvs1nhz

  • MD5

    623a97bc746f3b530b9f2cb2df7e9145

  • SHA1

    1c03bf8e9db2120a1473c9c6924059e75639fa1c

  • SHA256

    fe0f056142303bda8538355d81aced08b4792c9787c6060ccad08442e0dacad0

  • SHA512

    c0b89b096704a2727bf0242b2d20ed563980e51c4535cac98a9a34d84e89289bda87e3763bedb615f04f72d18a502f48b8ad5276c9e8dc4d1373e1a0bd47ff52

  • SSDEEP

    768:YoGDMmILyCe++bidiEuiso8Ybwge9V2COvEgK/Jn2i++++tyVc6KN:Yo0MWSMEzb3mOnkJLyVclN

Score
10/10
asyncratpowershellrat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

PowerShell

Mutex

DCSSZZVV

Attributes
  • delay

    1

  • install

    true

  • install_file

    winws.exe

  • install_folder

    %AppData%

  • pastebin_config

    https://pastebin.com/raw/cn4rM5C9

aes.plain

Targets

    • Target

      winjs.exe

    • Size

      52KB

    • MD5

      623a97bc746f3b530b9f2cb2df7e9145

    • SHA1

      1c03bf8e9db2120a1473c9c6924059e75639fa1c

    • SHA256

      fe0f056142303bda8538355d81aced08b4792c9787c6060ccad08442e0dacad0

    • SHA512

      c0b89b096704a2727bf0242b2d20ed563980e51c4535cac98a9a34d84e89289bda87e3763bedb615f04f72d18a502f48b8ad5276c9e8dc4d1373e1a0bd47ff52

    • SSDEEP

      768:YoGDMmILyCe++bidiEuiso8Ybwge9V2COvEgK/Jn2i++++tyVc6KN:Yo0MWSMEzb3mOnkJLyVclN

    Score
    10/10
    asyncratpowershellrat

    • AsyncRat

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

      ratasyncrat

    • Asyncrat family

      asyncrat

    • Async RAT payload

      rat

    • Checks computer location settings

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

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1behavioral2behavioral3behavioral4behavioral5

MITRE ATT&CK Enterprise v15

Tasks