Analysis

  • max time kernel
    55s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 23:23

General

  • Target

    63672c3a52ebeba10f91eaa7e07551b5898ab3506f57393f9f5f583245f2e41c.exe

  • Size

    908KB

  • MD5

    4a2828e5a6427a76bab3db43b09ae792

  • SHA1

    9ef90209928626b9c2da609ae04643145cc8b032

  • SHA256

    63672c3a52ebeba10f91eaa7e07551b5898ab3506f57393f9f5f583245f2e41c

  • SHA512

    37ef6ca6aa65ecc22d29ae32a03bb83232799baf80c224d6c395c0944df34d082cf74aa3d4b5de004cbff64318fefe8782d96f9b8187c6f47aeb5dbb058c7750

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 24 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\63672c3a52ebeba10f91eaa7e07551b5898ab3506f57393f9f5f583245f2e41c.exe
    "C:\Users\Admin\AppData\Local\Temp\63672c3a52ebeba10f91eaa7e07551b5898ab3506f57393f9f5f583245f2e41c.exe"
    1⤵
      PID:748
    • 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:948
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:948 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1260
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:948 CREDAT:537616 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1424
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
        PID:980
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:980 CREDAT:275457 /prefetch:2
          2⤵
            PID:1584
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
            PID:2000
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2000 CREDAT:275457 /prefetch:2
              2⤵
                PID:840

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/748-54-0x0000000075541000-0x0000000075543000-memory.dmp

              Filesize

              8KB

            • memory/748-55-0x0000000000220000-0x000000000022C000-memory.dmp

              Filesize

              48KB

            • memory/748-56-0x0000000000400000-0x00000000004E5000-memory.dmp

              Filesize

              916KB

            • memory/748-57-0x00000000002C0000-0x00000000002D1000-memory.dmp

              Filesize

              68KB