Analysis

  • max time kernel
    84s
  • max time network
    165s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-05-2022 01:06

General

  • Target

    21fead89c8744f3704268fc34135300c4e784d9c609d356841dcec5054e23cf2.exe

  • Size

    908KB

  • MD5

    ce38713657f32521fb9afe20f927abc7

  • SHA1

    b488c2264c0f68386ef251fdf7459b63d3d5d2d0

  • SHA256

    21fead89c8744f3704268fc34135300c4e784d9c609d356841dcec5054e23cf2

  • SHA512

    d62a850b1eff42f9a00e69d5865eb36d268f34491d301939fcfdd65bdfee5e2836ab0f082376fc399a5b8fbf52eb00eacf2644370a419771a223f5462c537c12

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 26 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\21fead89c8744f3704268fc34135300c4e784d9c609d356841dcec5054e23cf2.exe
    "C:\Users\Admin\AppData\Local\Temp\21fead89c8744f3704268fc34135300c4e784d9c609d356841dcec5054e23cf2.exe"
    1⤵
      PID:1420
    • 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:2028
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2028 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1912
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2028 CREDAT:209929 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:668
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
        PID:1160
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1160 CREDAT:275457 /prefetch:2
          2⤵
            PID:1836

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Defense Evasion

        Modify Registry

        1
        T1112

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\IO383ILP.txt
          Filesize

          604B

          MD5

          275ad6c90ea25376ebbbb6ebf4f1211d

          SHA1

          5faecd761c1e96e5a5614625e65eac416dee60d1

          SHA256

          b81351b22caacec1061ef0755ccb378538458e19a61395bd676d995e40008f6f

          SHA512

          949271da3ea067bb127c925db05998d705668722b1151183336bb2dfe5d98db3bbec702f345afb5c5c12bbf18e05f3d7376e2103a14af5f14e9ca5bfd59d8c6b

        • memory/1420-54-0x00000000752B1000-0x00000000752B3000-memory.dmp
          Filesize

          8KB

        • memory/1420-56-0x0000000000400000-0x00000000004E5000-memory.dmp
          Filesize

          916KB

        • memory/1420-55-0x0000000000220000-0x000000000022C000-memory.dmp
          Filesize

          48KB

        • memory/1420-57-0x0000000000240000-0x0000000000251000-memory.dmp
          Filesize

          68KB