Resubmissions

24-08-2021 15:27

210824-gr81wz5pan 10

21-06-2021 13:09

210621-c2wlrsx18e 10

Analysis

  • max time kernel
    25s
  • max time network
    12s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    21-06-2021 13:09

General

  • Target

    focy1.dll

  • Size

    306KB

  • MD5

    81a57502787fd832d141625494bc6e61

  • SHA1

    73025e06eb644652e5f43d050663b041f687e53f

  • SHA256

    e1c8e34791daee490ba154c10dddf0d43d4cc6910fb08debbd5c722e722ea551

  • SHA512

    aecdf00d939762880c15de0f9377d1a3d4dcbe5f9bbd8d272003bfccc38f7314c862c45e0e387ef7d3ac13bb289136f39b32b7869ee22dd1175577d939c0dada

Malware Config

Extracted

Family

gozi_ifsb

Botnet

6000

C2

authd.feronok.com

app.bighomegl.at

Attributes
  • build

    250204

  • exe_type

    loader

  • server_id

    580

rsa_pubkey.plain
serpent.plain

Signatures

  • Gozi, Gozi IFSB

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

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\focy1.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:452
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\focy1.dll,#1
      2⤵
        PID:2032

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2032-60-0x0000000000000000-mapping.dmp
    • memory/2032-61-0x00000000753E1000-0x00000000753E3000-memory.dmp
      Filesize

      8KB

    • memory/2032-63-0x0000000074E40000-0x0000000074F2A000-memory.dmp
      Filesize

      936KB

    • memory/2032-62-0x0000000074E40000-0x0000000074E4D000-memory.dmp
      Filesize

      52KB

    • memory/2032-64-0x00000000000B0000-0x00000000000B1000-memory.dmp
      Filesize

      4KB