Analysis

  • max time kernel
    34s
  • max time network
    66s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    05-07-2021 14:39

General

  • Target

    9b9dc.dll

  • Size

    420KB

  • MD5

    9b9dcba4b633e44b85fa93b9499b89aa

  • SHA1

    dd7745cb5b057df865a75bb110ded7c20528bfde

  • SHA256

    5f9688e1d0b2e2b1240946dcc9fc145362cb4c1b76acd74bd85e75afc3ff1b91

  • SHA512

    4f7ed3354405099d43ddc615dce09f35ac2ae1bba3bf8e58af44aa6ed6c741ca80184e7c6be63afe01dcbb3dcfe2257162955002ce65ea3559e6a204aba7680b

Malware Config

Extracted

Family

gozi_ifsb

Botnet

4500

C2

gtr.antoinfer.com

app.bighomegl.at

Attributes
  • build

    250204

  • exe_type

    loader

  • server_id

    580

rsa_pubkey.plain
aes.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\9b9dc.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:652
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\9b9dc.dll,#1
      2⤵
        PID:3460

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3460-114-0x0000000000000000-mapping.dmp
    • memory/3460-115-0x00000000049E0000-0x0000000004AE1000-memory.dmp
      Filesize

      1.0MB

    • memory/3460-116-0x00000000049E0000-0x00000000049ED000-memory.dmp
      Filesize

      52KB

    • memory/3460-117-0x00000000049E1000-0x0000000004A2A000-memory.dmp
      Filesize

      292KB

    • memory/3460-118-0x0000000000FC0000-0x0000000000FC1000-memory.dmp
      Filesize

      4KB