General

  • Target

    tmp

  • Size

    2MB

  • Sample

    231207-g6sj3ahfcq

  • MD5

    e18397f25b87a6f58b9c226e8e9ea03f

  • SHA1

    add05b6925225f6450fac5022d0959c722a57a5d

  • SHA256

    9bbff8a558332514842fc08308705cecc41c4867511d4a0e6622a321c7041900

  • SHA512

    8dc167e97f3c897d5c8d4319e1fb6eca1e71d3992a2263be8461c469ae43a2136c2864bc897502ef05b47182b5bdfc7a041943b9e0e624531a4d9d4d0438f922

  • SSDEEP

    6144:YYRlal53xl2QVZzNy1smH33GOUlVe2R93p8E+epjNfO/VJC+aoUOTyd/94d1qiMN:e5Pdzh

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

91.92.247.161:5531

91.92.247.123:5531

91.92.247.96:5531

Mutex

LAFnioqwfOASDjiqwfqfwdsv

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      tmp

    • Size

      2MB

    • MD5

      e18397f25b87a6f58b9c226e8e9ea03f

    • SHA1

      add05b6925225f6450fac5022d0959c722a57a5d

    • SHA256

      9bbff8a558332514842fc08308705cecc41c4867511d4a0e6622a321c7041900

    • SHA512

      8dc167e97f3c897d5c8d4319e1fb6eca1e71d3992a2263be8461c469ae43a2136c2864bc897502ef05b47182b5bdfc7a041943b9e0e624531a4d9d4d0438f922

    • SSDEEP

      6144:YYRlal53xl2QVZzNy1smH33GOUlVe2R93p8E+epjNfO/VJC+aoUOTyd/94d1qiMN:e5Pdzh

    • AsyncRat

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

    • Async RAT payload

    • Checks computer location settings

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

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Tasks