Analysis

  • max time kernel
    19s
  • max time network
    126s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    22-06-2021 12:21

General

  • Target

    a52b99da06480ceb3359f9dec686a115f974e7cfb3dc2e9a4286da8232ea1677.dll

  • Size

    162KB

  • MD5

    1a4b6ab96bbc0cfa0b755acb9f671504

  • SHA1

    b8b5f82f888a8087f6433b4fe05627d5510bb853

  • SHA256

    a52b99da06480ceb3359f9dec686a115f974e7cfb3dc2e9a4286da8232ea1677

  • SHA512

    d70111828644b09fe3c00cefdff6c64e9aab460dcc5b470bac15983bcdff4699612849e525db4c839a58abb06a66c0322d24cebd550aaccced30582f73c40d51

Malware Config

Extracted

Family

dridex

Botnet

40112

C2

107.172.227.10:443

172.93.133.123:2303

108.168.61.147:8172

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\a52b99da06480ceb3359f9dec686a115f974e7cfb3dc2e9a4286da8232ea1677.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a52b99da06480ceb3359f9dec686a115f974e7cfb3dc2e9a4286da8232ea1677.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:3544

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3544-115-0x0000000073A70000-0x0000000073A9E000-memory.dmp

    Filesize

    184KB

  • memory/3544-117-0x0000000003130000-0x00000000031DE000-memory.dmp

    Filesize

    696KB