Analysis

  • max time kernel
    110s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    25-10-2021 08:35

General

  • Target

    61766c5057b51.pdf.dll

  • Size

    942KB

  • MD5

    96c1d2b40d981eb28aede953cf76e14a

  • SHA1

    cbc35b375917f21ab85f989febdf8f6cb73dd7be

  • SHA256

    0570fd54d98349e62675cf1e53aa2197ed6c0df811350bfae9f64196b0a49278

  • SHA512

    991cf362193adb894f7b83de453174a96b21cfe4791424e6ab142c8c31b54d49dc4a8fd8698c08bd56c0f10104592647333dbf39d92dcd0c7f39edf087010244

Malware Config

Extracted

Family

gozi_ifsb

Botnet

8899

C2

msn.com/mail

realitystorys.com

outlook.com/signup

gderrrpololo.net

Attributes
  • build

    260212

  • dga_season

    10

  • exe_type

    loader

  • server_id

    12

rsa_pubkey.plain
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\61766c5057b51.pdf.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3028
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\61766c5057b51.pdf.dll,#1
      2⤵
        PID:3716

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3716-115-0x0000000000000000-mapping.dmp
    • memory/3716-116-0x0000000073850000-0x0000000073954000-memory.dmp
      Filesize

      1.0MB

    • memory/3716-117-0x0000000073850000-0x000000007385F000-memory.dmp
      Filesize

      60KB

    • memory/3716-118-0x0000000073850000-0x0000000073954000-memory.dmp
      Filesize

      1.0MB

    • memory/3716-119-0x0000000000DF0000-0x0000000000F3A000-memory.dmp
      Filesize

      1.3MB