Analysis

  • max time kernel
    28s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    21-04-2021 20:01

General

  • Target

    46e660ab2fb836c3e645230fe88dd4b8b39ee61c1207416a13e18c4c05d4fb6b.dll

  • Size

    154KB

  • MD5

    35f62b56b9fe46502153b047df435ed3

  • SHA1

    9b4d7b03c52d88e9d535899830ff5f9722020542

  • SHA256

    46e660ab2fb836c3e645230fe88dd4b8b39ee61c1207416a13e18c4c05d4fb6b

  • SHA512

    33bf7b6959c3d2593cc5a1839a92535084206ad47f6a9460134226c6345d4e2ae4d372fef3d096e0cc11b2ea3dfa5934f251634de431625bee0bc33d473489d0

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\46e660ab2fb836c3e645230fe88dd4b8b39ee61c1207416a13e18c4c05d4fb6b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:472
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\46e660ab2fb836c3e645230fe88dd4b8b39ee61c1207416a13e18c4c05d4fb6b.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1428

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1428-114-0x0000000000000000-mapping.dmp
  • memory/1428-115-0x0000000073F10000-0x0000000073F3D000-memory.dmp
    Filesize

    180KB

  • memory/1428-117-0x00000000012E0000-0x00000000012E6000-memory.dmp
    Filesize

    24KB

  • memory/1428-119-0x00000000033C0000-0x00000000033C1000-memory.dmp
    Filesize

    4KB