Overview

overview

10

Static

static

Invoice UT...df.exe

windows7_x64

9

Invoice UT...df.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    47s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 12:44

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General

  • Target

    Invoice UT05-222546.pdf.exe

  • Size

    360KB

  • MD5

    b76512014f74e255d5fa3bd144090baf

  • SHA1

    19e3bd57858eea5e1904f379f5683243e39fbaed

  • SHA256

    6de0a133506d6df141e56bf1f834c3028c31809a056f7bb97d76c9199c5823b7

  • SHA512

    5c5d3757ebdb6bdd86d1de031889e788ea480c178e3e2959e314c1983a6f0da0eca698e384a70a616e7147cf1d3a406df7d615d84965b0b8d6a04069e438e4f3

Score
9/10
rezer0

Malware Config

Signatures

  • ReZer0 packer 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

    rezer0
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoice UT05-222546.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice UT05-222546.pdf.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1836
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yNYFRHTfohvGo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5EC4.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:856
    • C:\Users\Admin\AppData\Local\Temp\Invoice UT05-222546.pdf.exe
      "{path}"
      2⤵
        PID:1084
      • C:\Users\Admin\AppData\Local\Temp\Invoice UT05-222546.pdf.exe
        "{path}"
        2⤵
          PID:1128
        • C:\Users\Admin\AppData\Local\Temp\Invoice UT05-222546.pdf.exe
          "{path}"
          2⤵
            PID:1120
          • C:\Users\Admin\AppData\Local\Temp\Invoice UT05-222546.pdf.exe
            "{path}"
            2⤵
              PID:1696
            • C:\Users\Admin\AppData\Local\Temp\Invoice UT05-222546.pdf.exe
              "{path}"
              2⤵
                PID:1136

            Network

            MITRE ATT&CK Matrix ATT&CK v6

            Initial Access

            Execution

            Scheduled Task

            1
            T1053

            Persistence

            Scheduled Task

            1
            T1053

            Privilege Escalation

            Scheduled Task

            1
            T1053

            Defense Evasion

            Credential Access

            Discovery

            System Information Discovery

            1
            T1082

            Lateral Movement

            Collection

            Exfiltration

            Command and Control

            Impact

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\tmp5EC4.tmp
              Filesize

              1KB

              MD5

              8dc0ae1991f4255c790a3988f7812299

              SHA1

              6629cb446e0e9428d196009508772de588cd063c

              SHA256

              1ee90c59c2a1590614b007a05bdcf7d8c9b184d64268edc55aaf42ef004a6948

              SHA512

              0b2d4f7d90ab2e245d9d677a40e302d4fa519cbd9b3ead381336c2e087f2986215a7482762b90a3e5ebccf317a575c6485cdab4e59f26832f207b045b05e459f

              Download Submit
            • memory/856-58-0x0000000000000000-mapping.dmp
              Download
            • memory/1836-54-0x00000000003E0000-0x0000000000440000-memory.dmp
              Filesize

              384KB

              Download
            • memory/1836-55-0x0000000000330000-0x0000000000338000-memory.dmp
              Filesize

              32KB

              Download
            • memory/1836-56-0x0000000004C90000-0x0000000004CE2000-memory.dmp
              Filesize

              328KB

              Download
            • memory/1836-57-0x0000000076421000-0x0000000076423000-memory.dmp
              Filesize

              8KB

              Download