General

  • Target

    bf9f11e114860afd27bf4ffd5290d8c0d0933f784ecec5c5f5e3d6a94360301f

  • Size

    436KB

  • Sample

    230129-1a99sadd67

  • MD5

    d5ef358a8c5e274f30dce147dc84b1f2

  • SHA1

    eb88a19f184ef2ab02d6573fa94f476f77d49b18

  • SHA256

    bf9f11e114860afd27bf4ffd5290d8c0d0933f784ecec5c5f5e3d6a94360301f

  • SHA512

    62d5a34011a1757c6491fde9010bab04ff3a4101b8f7eb613cd67b7a46d8c6a335289664503076379a2d01e5b110d2577133e1f357020c2e600715243e81364f

  • SSDEEP

    6144:7YOSlqxfO/kYaLhaxTsfUzVvvKPHNkHaZvNdenl0pQPlGu4zEvi+ILWBxQtXd/Jx:fRWwHNkHaZvNdentPlGyvJ0WItX7

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

127.0.0.1:81

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    true

  • install_file

    Choromeupdate.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      bf9f11e114860afd27bf4ffd5290d8c0d0933f784ecec5c5f5e3d6a94360301f

    • Size

      436KB

    • MD5

      d5ef358a8c5e274f30dce147dc84b1f2

    • SHA1

      eb88a19f184ef2ab02d6573fa94f476f77d49b18

    • SHA256

      bf9f11e114860afd27bf4ffd5290d8c0d0933f784ecec5c5f5e3d6a94360301f

    • SHA512

      62d5a34011a1757c6491fde9010bab04ff3a4101b8f7eb613cd67b7a46d8c6a335289664503076379a2d01e5b110d2577133e1f357020c2e600715243e81364f

    • SSDEEP

      6144:7YOSlqxfO/kYaLhaxTsfUzVvvKPHNkHaZvNdenl0pQPlGu4zEvi+ILWBxQtXd/Jx:fRWwHNkHaZvNdentPlGyvJ0WItX7

    Score
    10/10
    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

    • Async RAT payload

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks