Analysis

  • max time kernel
    139s
  • max time network
    9s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    26-04-2021 14:25

General

  • Target

    hNrs45j2n3mLRl0.php.dll

  • Size

    160KB

  • MD5

    86c9a71bbf9af242abc7e7d81fd25d06

  • SHA1

    52ed6deb879e77400e0d643dc8a11dfe94553c08

  • SHA256

    c7df6924710bd79de0a0bd5397659f925148fed9a567c0abde60a0432cb80bee

  • SHA512

    7c396b444c74c4c30f3e82b29d9d073ca90f085b98b72528c3de5fd524e4387a7ea7627e7a043b0458689c007736a9347479f66ec45637234737dbb50ea8436d

Malware Config

Extracted

Family

dridex

Botnet

40111

C2

185.148.168.240:443

162.216.125.131:2303

193.200.130.178:8172

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.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\hNrs45j2n3mLRl0.php.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1776
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\hNrs45j2n3mLRl0.php.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 264
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:1864

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1864-63-0x0000000000000000-mapping.dmp

  • memory/1864-65-0x0000000000770000-0x0000000000771000-memory.dmp

    Filesize

    4KB

  • memory/2016-59-0x0000000000000000-mapping.dmp

  • memory/2016-60-0x0000000075C31000-0x0000000075C33000-memory.dmp

    Filesize

    8KB

  • memory/2016-61-0x0000000074940000-0x000000007496E000-memory.dmp

    Filesize

    184KB

  • memory/2016-64-0x00000000001B0000-0x00000000001B6000-memory.dmp

    Filesize

    24KB