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Analysis

  • max time kernel
    121s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 03:40

General

  • Target

    26b3be28bd80be9619b28fb0b9245575.dll

  • Size

    236KB

  • MD5

    26b3be28bd80be9619b28fb0b9245575

  • SHA1

    462baecbfc4056d23bf2ab75f7797b6e4266b25b

  • SHA256

    b7e9ca106429a04c13dca37a1d43114199a6a1606e689f924760e6987d44c20e

  • SHA512

    743e5c0150d89e6685c4f9499f4f637a832c5363bc1ce36dfe49c63fac1719cce282c2ba0b7619a8a63806bff070210456e90ee549eb8b3d838245d46bdd9361

  • SSDEEP

    1536:Iguo2K86vta10RJQYPIHL+D5IWhxRh/Ci4ucg3/+k5ltr+DRPG8Gz7wk+cQvMx:Go256vS0RJAL+lHPKi40+66iwkD0G

Score
10/10

Malware Config

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\26b3be28bd80be9619b28fb0b9245575.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1764
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\26b3be28bd80be9619b28fb0b9245575.dll,#1
      2⤵
      • Adds autorun key to be loaded by Explorer.exe on startup
      • Loads dropped DLL
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Windows\SysWOW64\jzdoh.dll

    Filesize

    512KB

    MD5

    84d57279a4265c83e191956672971353

    SHA1

    c1c22773e37ab44a59ca334ff10e4c89a3a1a54e

    SHA256

    f18885498843331ea4735ea7ce129873c039c863971247a18c2ab212424b09c8

    SHA512

    9c528692df535c50473947d6f3d09b04cabeb26cbc441126a9dff8a192368b494c8c607f509ec6468c5ea92ec9753daa81c9000db5bcac8e51e93689e18a8617

  • memory/1956-0-0x00000000001A0000-0x00000000001E4000-memory.dmp

    Filesize

    272KB

  • memory/1956-1-0x00000000001A0000-0x00000000001E4000-memory.dmp

    Filesize

    272KB

  • memory/1956-7-0x0000000074D10000-0x0000000074DB0000-memory.dmp

    Filesize

    640KB

  • memory/1956-10-0x00000000001A0000-0x00000000001E4000-memory.dmp

    Filesize

    272KB

  • memory/1956-11-0x0000000074D10000-0x0000000074DB0000-memory.dmp

    Filesize

    640KB