General

  • Target

    Infected.exe

  • Size

    63KB

  • Sample

    240512-tvlzcsha76

  • MD5

    40889fda42cee2f63aa6972ef432ad0e

  • SHA1

    19ccc20806ed5bbd6019e8c672407b11ab65ce88

  • SHA256

    f334121ac8ff4f73bd7ea92f125a601e0799943b7067568c9ca661b0882175bd

  • SHA512

    b21a7eb6a8294179137898470fe461cdea98a9076703d28c0e482d041e7d3e73bdda632849a8c6e1b8bb65bbd01aaf0afc2ecea5af744726c10af16033c382e2

  • SSDEEP

    768:Cm0vnfEXf78awC8A+XU2azcBRL5JTk1+T4KSBGHmDbD/ph0oXrwbUUSusdpqKYhg:qEXiLdSJYUbdh9+UTusdpqKmY7

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:3232

127.0.0.1:14548

5.tcp.eu.ngrok.io:3232

5.tcp.eu.ngrok.io:14548

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      Infected.exe

    • Size

      63KB

    • MD5

      40889fda42cee2f63aa6972ef432ad0e

    • SHA1

      19ccc20806ed5bbd6019e8c672407b11ab65ce88

    • SHA256

      f334121ac8ff4f73bd7ea92f125a601e0799943b7067568c9ca661b0882175bd

    • SHA512

      b21a7eb6a8294179137898470fe461cdea98a9076703d28c0e482d041e7d3e73bdda632849a8c6e1b8bb65bbd01aaf0afc2ecea5af744726c10af16033c382e2

    • SSDEEP

      768:Cm0vnfEXf78awC8A+XU2azcBRL5JTk1+T4KSBGHmDbD/ph0oXrwbUUSusdpqKYhg:qEXiLdSJYUbdh9+UTusdpqKmY7

    • AsyncRat

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

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • Renames multiple (1272) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Checks computer location settings

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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

Persistence

Account Manipulation

1
T1098

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

6
T1082

Process Discovery

1
T1057

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks