Analysis

  • max time kernel
    141s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-03-2024 22:10

General

  • Target

    b339347e3ca1df6e8ae904e5dcfefcc4.dll

  • Size

    188KB

  • MD5

    b339347e3ca1df6e8ae904e5dcfefcc4

  • SHA1

    3fffcf655c525a38ea2ce7d4232dc0fd4057779c

  • SHA256

    df211f9fe9c441bb19299e548ec770995c50a703a783810831973776c463768c

  • SHA512

    af2f64a4218027c18baca6d7090ff9de718801e795a889498347284d1893824f8002ab2e3bd6902e68123072f5bb175f0b0fc845f94109794010696d2d6a545c

  • SSDEEP

    3072:oH0uyjZqEpAK+Gf78TBdrXkTM5vhRg9Esf0DwvtyMpVnpA+z6tX8sxKViWs7dU:oUua/Pv7YNhRIEZDeXVpAxtMsxK

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

103.82.248.59:443

54.39.98.141:6602

103.109.247.8:10443

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b339347e3ca1df6e8ae904e5dcfefcc4.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b339347e3ca1df6e8ae904e5dcfefcc4.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2088
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 308
        3⤵
        • Program crash
        PID:1268

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2088-0-0x0000000074BC0000-0x0000000074BF0000-memory.dmp

    Filesize

    192KB

  • memory/2088-1-0x00000000000C0000-0x00000000000C6000-memory.dmp

    Filesize

    24KB