Analysis

  • max time kernel
    23s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    21-04-2021 20:03

General

  • Target

    b8056652f3c5947555611141bb27c211301e74e407c40b5b6e6d3a060e42d931.dll

  • Size

    154KB

  • MD5

    388470f995842e284c1ab3351a6b9ec5

  • SHA1

    4768369da22eb91eaeccf22079ad6d3b67e863e6

  • SHA256

    b8056652f3c5947555611141bb27c211301e74e407c40b5b6e6d3a060e42d931

  • SHA512

    0ebeefeebcd3242681bc8c12dbe76e3e4f9c475c9a4d92a7ed58c265d02485438eb880d8d2e8fc1e6bbba1fca141325bdbf9c8f2864b1b334101d3c8d17f688d

Malware Config

Extracted

Family

dridex

Botnet

40111

C2

159.8.59.82:443

51.91.156.39:2303

67.196.50.240:8172

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\b8056652f3c5947555611141bb27c211301e74e407c40b5b6e6d3a060e42d931.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b8056652f3c5947555611141bb27c211301e74e407c40b5b6e6d3a060e42d931.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:740

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/740-114-0x0000000000000000-mapping.dmp
  • memory/740-115-0x0000000073860000-0x000000007388D000-memory.dmp
    Filesize

    180KB

  • memory/740-117-0x00000000030B0000-0x00000000031FA000-memory.dmp
    Filesize

    1.3MB