Analysis

  • max time kernel
    25s
  • max time network
    8s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    21-04-2021 16:03

General

  • Target

    54d04f1f7a80e19ea4a81c2da2cdaf5f1459211861fbf24817b13161daf3ae7f.dll

  • Size

    162KB

  • MD5

    401e63ca9f5c064f3d03a4c89c202fa2

  • SHA1

    57df09ce24e235d69030e26655c7aaa3bbe6069c

  • SHA256

    54d04f1f7a80e19ea4a81c2da2cdaf5f1459211861fbf24817b13161daf3ae7f

  • SHA512

    2f5cd58eb1089a1887d88086b5777954b1d5104d6ce41084085d15eda56851e0dc1c0f178008924bb45a4ce4c1f454d4680e98981cc3703ce147aa538684945b

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 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\54d04f1f7a80e19ea4a81c2da2cdaf5f1459211861fbf24817b13161daf3ae7f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\54d04f1f7a80e19ea4a81c2da2cdaf5f1459211861fbf24817b13161daf3ae7f.dll,#1
      2⤵
      • Checks whether UAC is enabled
      PID:1968

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1968-59-0x0000000000000000-mapping.dmp
  • memory/1968-60-0x0000000075D41000-0x0000000075D43000-memory.dmp
    Filesize

    8KB

  • memory/1968-61-0x0000000074740000-0x000000007476E000-memory.dmp
    Filesize

    184KB

  • memory/1968-63-0x0000000000130000-0x0000000000136000-memory.dmp
    Filesize

    24KB