Analysis

  • max time kernel
    110s
  • max time network
    21s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    15-08-2024 19:03

General

  • Target

    f90bfa819bb11ee27bdf09a976347720N.dll

  • Size

    184KB

  • MD5

    f90bfa819bb11ee27bdf09a976347720

  • SHA1

    996e8faf255e45efdfdd4cf39a754f0760a3adac

  • SHA256

    f2d6303d7a40440909ec7313bd11876906a8be42c561ef0753990c395bce14eb

  • SHA512

    a4ced9d99c89753ce3b1646b7a85535c4a0308c061f604e04d9ba41bc67637cf141651a23fcab2d06e0343211b97205742763eb362ab6aaede0349a40235d34c

  • SSDEEP

    3072:C92qSmHOhnWpPI1ybmJIiC00PArIojHTYVBCn+rs3Ss3qLMTKrLA:C9NSMOEpQ1Q3ODAr+Ve

Malware Config

Extracted

Family

dridex

Botnet

22203

C2

80.241.218.90:443

103.161.172.109:13786

87.98.128.76:5723

rc4.plain
rc4.plain

Signatures

  • Dridex

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

  • Dridex Loader 2 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\f90bfa819bb11ee27bdf09a976347720N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1772
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f90bfa819bb11ee27bdf09a976347720N.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2236
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2236 -s 220
        3⤵
        • Program crash
        PID:2348

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2236-2-0x00000000000C0000-0x00000000000C6000-memory.dmp

    Filesize

    24KB

  • memory/2236-0-0x0000000074B90000-0x0000000074BBF000-memory.dmp

    Filesize

    188KB

  • memory/2236-3-0x0000000074B90000-0x0000000074BBF000-memory.dmp

    Filesize

    188KB