Analysis

  • max time kernel
    135s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    21-04-2021 18:18

General

  • Target

    95bfb6dcc92ae19a67100219268a571226bc2ce8e7c6d3a989c49801f94dea87.dll

  • Size

    154KB

  • MD5

    fe2b098ca9c51b67ccab5d5cb2b00082

  • SHA1

    1260d0ebff51a7d77ce7efcf6e0ded88a6430b68

  • SHA256

    95bfb6dcc92ae19a67100219268a571226bc2ce8e7c6d3a989c49801f94dea87

  • SHA512

    b4a607b6cee256370dbb6bc78c820711df511ab7e5616fe868f7a30f6f64ca0909169e341ca5c9afd877a310f5b0fe347876cdc7f8062f494b2ae20c7b91b72c

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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\95bfb6dcc92ae19a67100219268a571226bc2ce8e7c6d3a989c49801f94dea87.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1676
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\95bfb6dcc92ae19a67100219268a571226bc2ce8e7c6d3a989c49801f94dea87.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1644

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1644-59-0x0000000000000000-mapping.dmp
  • memory/1644-60-0x0000000075971000-0x0000000075973000-memory.dmp
    Filesize

    8KB

  • memory/1644-61-0x0000000074DF0000-0x0000000074E1D000-memory.dmp
    Filesize

    180KB

  • memory/1644-63-0x00000000001C0000-0x00000000001C6000-memory.dmp
    Filesize

    24KB