Analysis

  • max time kernel
    4294184s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    21/03/2022, 07:57

General

  • Target

    readme.dll

  • Size

    457KB

  • MD5

    b7419ae99bdf4bb0d53ac560e308565e

  • SHA1

    f143fb4f0b339fecff40838b43a645fc0b056c5a

  • SHA256

    7cbb379e78c7c547cfd1957ccaa0be899cb97df3d001605c9bd51cd70d975886

  • SHA512

    5940a1ee8755021233d401e571180f43e6eee0fc14dc4c486394838789482dcac565f9c8c40a3375b1fa3e7717c83705bac776540d8f045ec867b7a24d3ea4c0

Malware Config

Extracted

Family

gozi_ifsb

Botnet

7625

C2

sistemliner.top

linkspremium.ru

premiumlists.ru

Attributes
  • base_path

    /drew/

  • build

    250225

  • exe_type

    loader

  • extension

    .jlk

  • server_id

    50

rsa_pubkey.plain
aes.plain

Signatures

  • Gozi, Gozi IFSB

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

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\readme.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1508
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\readme.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1808
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 224
        3⤵
        • Program crash
        PID:880

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1808-54-0x0000000075081000-0x0000000075083000-memory.dmp

          Filesize

          8KB

        • memory/1808-55-0x0000000000760000-0x00000000007D6000-memory.dmp

          Filesize

          472KB

        • memory/1808-57-0x0000000000170000-0x000000000017E000-memory.dmp

          Filesize

          56KB

        • memory/1808-56-0x0000000000170000-0x000000000017E000-memory.dmp

          Filesize

          56KB

        • memory/1808-59-0x0000000000170000-0x000000000017E000-memory.dmp

          Filesize

          56KB

        • memory/1808-60-0x00000000000D0000-0x00000000000DC000-memory.dmp

          Filesize

          48KB