Resubmissions

05-02-2021 13:55

210205-lmm8e3abda 10

05-02-2021 13:42

210205-serhwbtcf2 10

Analysis

  • max time kernel
    445s
  • max time network
    376s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    05-02-2021 13:55

General

  • Target

    32b2d32af004b6039b73f4ccd73df2bafe7a0343.dll

  • Size

    539KB

  • MD5

    d31c0491f522d6b9f2102109bd2420af

  • SHA1

    dc1cccf0e43ec5a68326ae4faf1a8cbc5ac00708

  • SHA256

    f7c79c0c3feb7c0032424f5f6a9bcdf78d1815ee53f807cc192c2c1f8f21270f

  • SHA512

    48d659660654800da4eb3909a06572dfcf5f05ebdfb8629fafdfeab601673e3377d9a3a241f4bd36c3f4f912ac838dbc73926f734bfa8a76ec43fa726b28c3bd

Malware Config

Extracted

Family

gozi_rm3

Botnet

201193207

C2

https://topitophug.xyz

Attributes
  • build

    300932

  • exe_type

    loader

  • non_target_locale

    RU

  • server_id

    12

  • url_path

    index.htm

rsa_pubkey.base64
serpent.plain

Signatures

  • Gozi RM3

    A heavily modified version of Gozi using RM3 loader.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\32b2d32af004b6039b73f4ccd73df2bafe7a0343.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4760
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\32b2d32af004b6039b73f4ccd73df2bafe7a0343.dll,#1
      2⤵
        PID:4776
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 724
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3700

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3700-5-0x0000000004820000-0x0000000004821000-memory.dmp

      Filesize

      4KB

    • memory/4776-2-0x0000000000000000-mapping.dmp

    • memory/4776-3-0x0000000003090000-0x0000000003091000-memory.dmp

      Filesize

      4KB

    • memory/4776-4-0x0000000006680000-0x0000000006692000-memory.dmp

      Filesize

      72KB

    • memory/4776-6-0x0000000004CA0000-0x0000000004CAE000-memory.dmp

      Filesize

      56KB

    • memory/4776-7-0x00000000065B0000-0x00000000065C0000-memory.dmp

      Filesize

      64KB