Analysis

  • max time kernel
    221s
  • max time network
    250s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 22:22

General

  • Target

    34310ddb8868edab921a74f7d3980b96113bcfe8976eec772ee2304a7fd9a17c.exe

  • Size

    908KB

  • MD5

    bf2a50a7cafc34a8b65362b97c440f09

  • SHA1

    5a090d9aad45e88f3d0bef604156b43f8df6285a

  • SHA256

    34310ddb8868edab921a74f7d3980b96113bcfe8976eec772ee2304a7fd9a17c

  • SHA512

    6106bb1c0186dd120e80478844ea25c79cd9d43ae58c01b79153011ee24e0289cde41175414f33ce6d6518a547cc8024f8dc245910888df5db27f367598f7b2f

Malware Config

Extracted

Family

gozi_rm3

Attributes
  • build

    300854

Extracted

Family

gozi_rm3

Botnet

202004141

C2

https://devicelease.xyz

Attributes
  • build

    300854

  • dga_base_url

    constitution.org/usdeclar.txt

  • dga_crc

    0x4eb7d2ca

  • dga_season

    10

  • dga_tlds

    com

    ru

    org

  • exe_type

    loader

  • server_id

    12

  • url_path

    index.htm

rsa_pubkey.plain
serpent.plain

Signatures

  • Gozi RM3

    A heavily modified version of Gozi using RM3 loader.

  • Modifies Internet Explorer settings 1 TTPs 56 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\34310ddb8868edab921a74f7d3980b96113bcfe8976eec772ee2304a7fd9a17c.exe
    "C:\Users\Admin\AppData\Local\Temp\34310ddb8868edab921a74f7d3980b96113bcfe8976eec772ee2304a7fd9a17c.exe"
    1⤵
      PID:892
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:528
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:528 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:896
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:528 CREDAT:1455108 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2020
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1972
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1972 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1832

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/892-54-0x0000000076191000-0x0000000076193000-memory.dmp
      Filesize

      8KB

    • memory/892-55-0x0000000000220000-0x000000000022C000-memory.dmp
      Filesize

      48KB

    • memory/892-56-0x0000000000400000-0x00000000004E5000-memory.dmp
      Filesize

      916KB

    • memory/892-57-0x0000000000240000-0x0000000000251000-memory.dmp
      Filesize

      68KB