Resubmissions

23-08-2021 22:27

210823-zzrykxs532 10

23-08-2021 22:07

210823-84ycc81bjn 10

09-07-2021 14:06

210709-5lky7g98wj 10

Analysis

  • max time kernel
    29s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    09-07-2021 14:06

General

  • Target

    3d0.dll

  • Size

    492KB

  • MD5

    3d080af5324b49363773d0db21b620ed

  • SHA1

    2724f486e0f8607eda3ea9e9783ea4f46bc98342

  • SHA256

    c21498aea57a809c36258572bc551c6047a4bf93958bc7a3d4b46d844fc9f1b3

  • SHA512

    d68d25125dc209f16936b8baad4334f7bb6c4fa58207fafd5428cb1c98630d668da6253e010ac4bb4dedd1dd418f1f31e08acef689e5f663fbde28c7935fadc0

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
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\3d0.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:516
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3d0.dll,#1
      2⤵
        PID:928

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/928-114-0x0000000000000000-mapping.dmp
    • memory/928-115-0x0000000003510000-0x00000000035A0000-memory.dmp
      Filesize

      576KB

    • memory/928-117-0x0000000003511000-0x0000000003564000-memory.dmp
      Filesize

      332KB

    • memory/928-116-0x0000000003510000-0x000000000351D000-memory.dmp
      Filesize

      52KB

    • memory/928-118-0x0000000003630000-0x0000000003631000-memory.dmp
      Filesize

      4KB