Analysis

  • max time kernel
    141s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-01-2024 11:24

General

  • Target

    7fb81b98bb77b54c2f69ab7c19d8bc25.dll

  • Size

    605KB

  • MD5

    7fb81b98bb77b54c2f69ab7c19d8bc25

  • SHA1

    bfd82e8164088d905576f66f2010e5f1fb1e892f

  • SHA256

    6700cc014e9ef5473a909a0c10d644661ccd0750ca942abd458cec91e32bf551

  • SHA512

    6a42a3b31cdd34436f92f6eeb29e968a81cde00a69adcae8174231faa9bc7e9ec0f5d4a5f419591cb425ddff936f11a6493310f24f8f3ea83f3993e07996efb5

  • SSDEEP

    12288:/edbxfx8d3fbkRXgeSVpZJosJe9ln3KuUliVjjP:/e3fYYRk/Xw9t3KniV

Malware Config

Extracted

Family

gozi

Extracted

Family

gozi

Botnet

1001

C2

yahoo.com

bogoleruno.website

gogoleruno.website

Attributes
  • base_path

    /gksadk/

  • build

    250212

  • dga_base_url

    constitution.org/usdeclar.txt

  • dga_crc

    0x4eb7d2ca

  • dga_season

    10

  • dga_tlds

    com

    ru

    org

  • exe_type

    loader

  • extension

    .fre

  • server_id

    12

rsa_pubkey.plain
serpent.plain

Signatures

  • Gozi

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

  • Blocklisted process makes network request 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\7fb81b98bb77b54c2f69ab7c19d8bc25.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3160
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\7fb81b98bb77b54c2f69ab7c19d8bc25.dll,#1
      2⤵
      • Blocklisted process makes network request
      PID:2032

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2032-0-0x0000000075380000-0x00000000754BB000-memory.dmp
    Filesize

    1.2MB

  • memory/2032-1-0x0000000000CF0000-0x0000000000CF1000-memory.dmp
    Filesize

    4KB

  • memory/2032-2-0x0000000002BF0000-0x0000000002C00000-memory.dmp
    Filesize

    64KB

  • memory/2032-5-0x0000000075380000-0x00000000754BB000-memory.dmp
    Filesize

    1.2MB

  • memory/2032-11-0x0000000000CF0000-0x0000000000CF1000-memory.dmp
    Filesize

    4KB