Analysis

  • max time kernel
    20s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    26-06-2022 05:39

General

  • Target

    iMzLYIacjTSkkklgbtq.dll

  • Size

    512KB

  • MD5

    11d52c5c4588cc43842dca09a21f1eb6

  • SHA1

    599267f47c25f6eafa52ace80dfd9fad2aa798d8

  • SHA256

    947cfb6d949f9a30f0c66d2aaabb0ccbe4cd0acf735abebc0e929e49c9fe83eb

  • SHA512

    e0cb6461c44d70c9398ae9f93d079748de13dc9122f17084c3b1a02b7d8f901259d91cfca5bb1d750e8bed74db83859e829a283223b6471163c3634a2f06bba4

Malware Config

Extracted

Family

dridex

Botnet

22203

C2

51.159.52.196:443

134.209.247.135:6602

194.233.68.48:5228

89.31.56.58:593

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\iMzLYIacjTSkkklgbtq.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\iMzLYIacjTSkkklgbtq.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1072
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1072 -s 300
        3⤵
        • Program crash
        PID:1552

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1072-54-0x0000000000000000-mapping.dmp

  • memory/1072-55-0x0000000075841000-0x0000000075843000-memory.dmp

    Filesize

    8KB

  • memory/1072-56-0x0000000074E10000-0x0000000074E91000-memory.dmp

    Filesize

    516KB

  • memory/1072-59-0x0000000000120000-0x0000000000126000-memory.dmp

    Filesize

    24KB

  • memory/1552-58-0x0000000000000000-mapping.dmp