Analysis

  • max time kernel
    9s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    08-04-2021 06:54

General

  • Target

    Confirmed order#PR2100906.pdf.exe

  • Size

    50KB

  • MD5

    ea2ab18853713d0dbb69b49354b75507

  • SHA1

    7a6ec638ba7c07c7278d3d9e585c69de45751b56

  • SHA256

    94bb5cf3b2d56807ecdff0d731b5bea776de7a22bd15c3bdd256157e8a0c02b8

  • SHA512

    2e8fac506df7eddc9964b3df9f8ddfb5263fab55d4168ccd79ea29378cce63e0785a098c0c352c02aaabd39e8bb9afe248d51ac9f37b71aad545bf872c45f744

Score
5/10

Malware Config

Signatures

  • Suspicious use of NtSetInformationThreadHideFromDebugger 16 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Confirmed order#PR2100906.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Confirmed order#PR2100906.pdf.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4768
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3840
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:2012

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2012-9-0x0000000000000000-mapping.dmp
  • memory/3840-8-0x0000000000000000-mapping.dmp
  • memory/4768-2-0x0000000073360000-0x0000000073A4E000-memory.dmp
    Filesize

    6.9MB

  • memory/4768-3-0x0000000000E00000-0x0000000000E01000-memory.dmp
    Filesize

    4KB

  • memory/4768-5-0x00000000057A0000-0x00000000057A1000-memory.dmp
    Filesize

    4KB

  • memory/4768-6-0x0000000006620000-0x0000000006621000-memory.dmp
    Filesize

    4KB

  • memory/4768-7-0x0000000006140000-0x000000000616B000-memory.dmp
    Filesize

    172KB

  • memory/4768-10-0x0000000007070000-0x0000000007071000-memory.dmp
    Filesize

    4KB