Analysis

  • max time kernel
    45s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220715-en
  • resource tags

    arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
  • submitted
    10-08-2022 14:39

General

  • Target

    31a1197c1f7a1cb2b53bd1bb7fe2e1f8.dll

  • Size

    300KB

  • MD5

    31a1197c1f7a1cb2b53bd1bb7fe2e1f8

  • SHA1

    b30bf29948b2905db6b106d868b334e423ff4ebe

  • SHA256

    1277c4177d2b564b221a369c587c6a99558253234f37bfbf19fef3a63bce88b5

  • SHA512

    6e65cada52581339a702ae83b63c83a2b52a8982b30b117042cec5e7fac44c61e27d2286ecc3d3fb89ed04ad4bef8414183d0bdd81c109a656b0e158f82b4ef7

Malware Config

Extracted

Family

gozi_ifsb

Botnet

3000

C2

config.edge.skype.com

79.110.52.8

79.110.52.80

193.106.191.163

Attributes
  • base_path

    /drew/

  • build

    250240

  • 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.

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\31a1197c1f7a1cb2b53bd1bb7fe2e1f8.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:760
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\31a1197c1f7a1cb2b53bd1bb7fe2e1f8.dll
      2⤵
        PID:1996

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/760-54-0x000007FEFC341000-0x000007FEFC343000-memory.dmp

      Filesize

      8KB

    • memory/1996-55-0x0000000000000000-mapping.dmp

    • memory/1996-56-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

      Filesize

      8KB

    • memory/1996-57-0x0000000010000000-0x000000001000E000-memory.dmp

      Filesize

      56KB

    • memory/1996-63-0x00000000001E0000-0x00000000001ED000-memory.dmp

      Filesize

      52KB