Analysis

  • max time kernel
    119s
  • max time network
    150s
  • submitted
    01-01-1970 00:00

General

  • Target

    1eb73387ac037361edd79ab40724105b.dll

  • Size

    750KB

  • MD5

    1eb73387ac037361edd79ab40724105b

  • SHA1

    5d116adae298d7a8e84f78c9c671b47358c9436d

  • SHA256

    c6ecd33754440fa1a9e2b17b490abd08797e16ac401c7951f0be769aafa2676e

  • SHA512

    90b7b8fafc8061574a4fd328da87f8372548e220420c59823745f97de8ecc68f1dcc5caeafd3ec5032c4258113088f412ada47868bedc5d60bd9b6921a029921

Malware Config

Extracted

Family

dridex

Botnet

10555

C2

192.46.210.220:443

143.244.140.214:808

45.77.0.96:6891

185.56.219.47:8116

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • 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 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\1eb73387ac037361edd79ab40724105b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3760
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1eb73387ac037361edd79ab40724105b.dll,#1
      2⤵
      • Blocklisted process makes network request
      • Checks whether UAC is enabled
      PID:4076

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/4076-115-0x0000000000000000-mapping.dmp
  • memory/4076-116-0x00000000739B0000-0x0000000073A79000-memory.dmp
    Filesize

    804KB

  • memory/4076-118-0x00000000739B0000-0x0000000073A79000-memory.dmp
    Filesize

    804KB

  • memory/4076-117-0x00000000739B0000-0x00000000739ED000-memory.dmp
    Filesize

    244KB

  • memory/4076-121-0x00000000032C0000-0x00000000032C1000-memory.dmp
    Filesize

    4KB

  • memory/4076-120-0x00000000032C0000-0x00000000032C1000-memory.dmp
    Filesize

    4KB

  • memory/4076-122-0x00000000032C0000-0x00000000032C1000-memory.dmp
    Filesize

    4KB

  • memory/4076-194-0x00000000032B0000-0x00000000032B1000-memory.dmp
    Filesize

    4KB