Analysis

  • max time kernel
    19s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    10-06-2021 22:24

General

  • Target

    1f533244cfbc8502ccd5cc45acc3297c831b439ef34429f6f62c0963e3f4a00b.dll

  • Size

    160KB

  • MD5

    267444943eb4922f927e1627684bc3d5

  • SHA1

    706f3bb1e5c62b19b18e92fc7dfb0979acee7c52

  • SHA256

    1f533244cfbc8502ccd5cc45acc3297c831b439ef34429f6f62c0963e3f4a00b

  • SHA512

    be38050d70d3e739d37139dc2e3571c29cbc2d9196fc4ba7150ebb7ae4dc27c788bfd0393e3cdda299ead7cc3bc868106e5d955830a394e443af78226a1d028a

Malware Config

Extracted

Family

dridex

Botnet

40111

C2

94.247.168.64:443

159.203.93.122:8172

50.116.27.97:2303

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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f533244cfbc8502ccd5cc45acc3297c831b439ef34429f6f62c0963e3f4a00b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3896
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1f533244cfbc8502ccd5cc45acc3297c831b439ef34429f6f62c0963e3f4a00b.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:3872

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3872-114-0x0000000000000000-mapping.dmp
  • memory/3872-115-0x0000000073A10000-0x0000000073A3E000-memory.dmp
    Filesize

    184KB

  • memory/3872-117-0x00000000032B0000-0x00000000032B6000-memory.dmp
    Filesize

    24KB