Resubmissions

03-11-2021 15:58

211103-tevassebf4 10

02-11-2021 04:23

211102-ez9hwsbfd6 10

02-03-2021 13:16

210302-qalv52kwwj 10

Analysis

  • max time kernel
    118s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    02-11-2021 04:23

General

  • Target

    ewgr.png.dll

  • Size

    646KB

  • MD5

    cf24c392a94a9bd8f381f0de2926a4f2

  • SHA1

    bf5ba2b5f9062b1a99797b593e378a1e59faa142

  • SHA256

    b4f98cb2d21258819d8678c29486a2e7854d576efc28b58d930551ca5aa24f20

  • SHA512

    ef2707615abb03cdda353d1ed081814fd77b0af78315d410736bb5e989d42f634c75f876c062254c25ec96e5b7fbb78bf41c7651cbd7d2efa68a49de61848ec0

Malware Config

Extracted

Family

gozi_rm3

Attributes
  • exe_type

    loader

Extracted

Family

gozi_rm3

Botnet

201193209

C2

https://binobin.xyz

Attributes
  • build

    300932

  • exe_type

    loader

  • non_target_locale

    RU

  • server_id

    12

  • url_path

    index.htm

rsa_pubkey.plain
serpent.plain

Signatures

  • Gozi RM3

    A heavily modified version of Gozi using RM3 loader.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 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\ewgr.png.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2864
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ewgr.png.dll,#1
      2⤵
        PID:2892
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 744
          3⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:548

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2892-116-0x0000000003110000-0x0000000003111000-memory.dmp

      Filesize

      4KB

    • memory/2892-117-0x0000000004C80000-0x0000000004C92000-memory.dmp

      Filesize

      72KB

    • memory/2892-121-0x0000000003130000-0x000000000327A000-memory.dmp

      Filesize

      1.3MB

    • memory/2892-120-0x0000000003130000-0x000000000327A000-memory.dmp

      Filesize

      1.3MB