Analysis

  • max time kernel
    20s
  • max time network
    126s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    14-06-2021 19:31

General

  • Target

    Selkirk.ttf.dll

  • Size

    374KB

  • MD5

    81127b25e86fc1c34d4b3c234bbb7650

  • SHA1

    97e8acc57e840ccc2a5caec350b69560f9d64abe

  • SHA256

    3d08389e485bae1170d17e1966af51b7f174c98d1b9dafc4d25873eb70d4d735

  • SHA512

    c2dcf05d65baaab85309d912dbfe01193a99ab0ac6a06ab361edab95a2dc246e56dc782e7c5235a541b8dea62a1b9c86f6211a0a7e6b6a2d197066d010d02d3d

Malware Config

Extracted

Family

gozi_ifsb

Botnet

4500

C2

authd.feronok.com

app.bighomegl.at

Attributes
  • build

    250204

  • exe_type

    loader

  • server_id

    580

rsa_pubkey.base64
serpent.plain

Signatures

  • Gozi, Gozi IFSB

    Gozi ISFB is a well-known and widely distributed banking trojan.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\Selkirk.ttf.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3872
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\Selkirk.ttf.dll,#1
      2⤵
        PID:4028

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4028-114-0x0000000000000000-mapping.dmp
    • memory/4028-116-0x00000000739F0000-0x0000000073A95000-memory.dmp
      Filesize

      660KB

    • memory/4028-115-0x00000000739F0000-0x00000000739FD000-memory.dmp
      Filesize

      52KB

    • memory/4028-117-0x00000000031F0000-0x00000000031F1000-memory.dmp
      Filesize

      4KB