Analysis

  • max time kernel
    60s
  • max time network
    59s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    04-03-2021 22:25

General

  • Target

    0ae09aa6c01a64e121af0d0c1a91c32d9e232e3d1334a83b90e5b36702426a4e.dll

  • Size

    168KB

  • MD5

    7b5079631af6063161abebaab19517b6

  • SHA1

    f385dc8db60e53e960010d19d66432f1a6222702

  • SHA256

    0ae09aa6c01a64e121af0d0c1a91c32d9e232e3d1334a83b90e5b36702426a4e

  • SHA512

    19db6575231927d1ff4b02943a5d14f311093bd864521b840bb3122dfc61eb3b2017c07f5dc88db3631537854bb6d0010c37074983f77c80e575656aa0383868

Malware Config

Extracted

Family

dridex

Botnet

111

C2

173.203.78.138:443

217.160.107.189:6601

77.220.64.150:5037

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • Dridex Loader 2 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Blocklisted process makes network request 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ae09aa6c01a64e121af0d0c1a91c32d9e232e3d1334a83b90e5b36702426a4e.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ae09aa6c01a64e121af0d0c1a91c32d9e232e3d1334a83b90e5b36702426a4e.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:1400

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1076-7-0x000007FEF6B90000-0x000007FEF6E0A000-memory.dmp
    Filesize

    2MB

  • memory/1400-2-0x0000000000000000-mapping.dmp
  • memory/1400-3-0x0000000075C31000-0x0000000075C33000-memory.dmp
    Filesize

    8KB

  • memory/1400-4-0x00000000754C0000-0x00000000754EC000-memory.dmp
    Filesize

    176KB

  • memory/1400-5-0x0000000000190000-0x0000000000196000-memory.dmp
    Filesize

    24KB

  • memory/1400-6-0x00000000754C0000-0x00000000754DF000-memory.dmp
    Filesize

    124KB