Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    13/06/2022, 10:16

General

  • Target

    x610E.tmp.dll

  • Size

    480KB

  • MD5

    fe2e50e674aceba23daa6c4e1501512e

  • SHA1

    ecb3a334493b82335040ea3196ed053682bcaea3

  • SHA256

    dd44995c4e6440c80669b0b16a53c2956b0675c9bb015a9e8037d8f487e604cf

  • SHA512

    5090370c34eeb972d8d9a8e9883c6fdb6f78f4ca6bc1378a5456c1c6598ca8a44d6fff07529eeb0854814a72194f4d32bb25232e2633cc79137eae33be35e442

Malware Config

Extracted

Family

gozi_ifsb

Botnet

7634

C2

factorlink.top

factorline.top

mediumline.co

Attributes
  • base_path

    /drew/

  • build

    250229

  • 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.

  • suricata: ET MALWARE Ursnif Variant CnC Beacon - URI Struct M2 (_2F)

    suricata: ET MALWARE Ursnif Variant CnC Beacon - URI Struct M2 (_2F)

  • 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\x610E.tmp.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1092
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\x610E.tmp.dll,#1
      2⤵
      • Blocklisted process makes network request
      PID:4340

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/4340-131-0x0000000000400000-0x000000000047B000-memory.dmp

          Filesize

          492KB

        • memory/4340-133-0x0000000000B50000-0x0000000000B56000-memory.dmp

          Filesize

          24KB

        • memory/4340-134-0x0000000002610000-0x000000000261D000-memory.dmp

          Filesize

          52KB