Overview

overview

7

Static

static

7

FREE POSEI...ER.exe

windows11-21h2-x64

1

Requiremen...ol.exe

windows11-21h2-x64

7

Requiremen...gs.vbs

windows11-21h2-x64

1

install_all.bat

windows11-21h2-x64

7

vcredist2005_x64.exe

windows11-21h2-x64

7

vcredist2005_x86.exe

windows11-21h2-x64

7

vcredist2008_x64.exe

windows11-21h2-x64

7

vcredist2008_x86.exe

windows11-21h2-x64

7

vcredist2010_x64.exe

windows11-21h2-x64

7

vcredist2010_x86.exe

windows11-21h2-x64

7

vcredist2012_x64.exe

windows11-21h2-x64

7

vcredist2012_x86.exe

windows11-21h2-x64

7

vcredist2013_x64.exe

windows11-21h2-x64

7

vcredist2013_x86.exe

windows11-21h2-x64

7

vcredist20...64.exe

windows11-21h2-x64

4

vcredist20...86.exe

windows11-21h2-x64

4

Analysis

  • max time kernel
    320s
  • max time network
    1632s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07-09-2024 06:53

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General

  • Target

    vcredist2005_x64.exe

  • Size

    3.0MB

  • MD5

    56eaf4e1237c974f6984edc93972c123

  • SHA1

    ee916012783024dac67fc606457377932c826f05

  • SHA256

    0551a61c85b718e1fa015b0c3e3f4c4eea0637055536c00e7969286b4fa663e0

  • SHA512

    f8e15363e34db5b5445c41eea4dd80b2f682642cb8f1046f30ea4fb5f4f51b0b604f7bcb3000a35a7d3ba1d1bcc07df9b25e4533170c65640b2d137c19916736

  • SSDEEP

    49152:+r67+stI6RWGTAdyvlADUrpTmcOgohwJpEM5grO3oc1OXZViFeRyDErkLUMHzkRN:AM9l8pUr9m30L5grOQXZKAsErkbQRN

Score
7/10
discoverypersistenceprivilege_escalation

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Blocklisted process makes network request 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 61 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

    discovery
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 56 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\vcredist2005_x64.exe
    "C:\Users\Admin\AppData\Local\Temp\vcredist2005_x64.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3080
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec /i vcredist.msi
      2⤵
      • Blocklisted process makes network request
      • Enumerates connected drives
      • Event Triggered Execution: Installer Packages
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:3556
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4264
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2732
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 397ADAFBEC707C0BB28D4AF717D53C60
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2588
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:3308

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredis1.cab
      Filesize

      312KB

      MD5

      77a9bff5af149160775741e204734d47

      SHA1

      7b5126af69b5a79593f39db94180f1ff11b0e39d

      SHA256

      20a26ed9a1edf7763a9b515522c5e29720048a482c7fbc8b7ff6bbdd27e61038

      SHA512

      bb0440f58f07e113bddd9a0afb5aab8af6493218784fe5fa6f4032e3a37088f91b7e766dee87cec4a9ea11d425d27b3b536430de3a52222e8bca3e0247d81e3b

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredist.msi
      Filesize

      3.0MB

      MD5

      6dbdf338a0a25cdb236d43ea3ca2395e

      SHA1

      685b6ea61e574e628392eaac8b10aff4309f1081

      SHA256

      200fef5d4994523a02c4daa00060db28eb289b99d47fc6c1305183101e72bdeb

      SHA512

      6b5b31c55cf72ab92b17fb6074b3901a1e6afe0796ef9bc831e4dfb97450376d2889cd24b1cf3fce60eb3c1bcd1b31254b5cfa3ef6107974dfa0b35c233daf5a

      Download Submit

    • C:\Windows\Installer\MSIB36E.tmp
      Filesize

      28KB

      MD5

      85221b3bcba8dbe4b4a46581aa49f760

      SHA1

      746645c92594bfc739f77812d67cfd85f4b92474

      SHA256

      f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

      SHA512

      060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d

      Download Submit

    • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
      Filesize

      12.8MB

      MD5

      d921012644869278557574accd3cfa43

      SHA1

      5406745a533b4636f3ac14f54735b3c90cc27a0b

      SHA256

      a136802e4b983b32018ca60fb37dbe6688834d3a576391c257277c9c5433aaff

      SHA512

      9176ce523e69cda0da8f21fd012c6bdad6f62dc7daf6ab161f620e14a7d7dacfb0283b728bef4a68b74543f8bc99b12fd82a5a330b2c6ba3aedf03b94160ea17

      Download Submit

    • \??\Volume{aac78cb3-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{1b6ab535-d268-4e63-b875-000b21aeae18}_OnDiskSnapshotProp
      Filesize

      6KB

      MD5

      7cd1252a3a43b2e873845763b4f6ec62

      SHA1

      077bdc166f233772f69f921e14190e1518708799

      SHA256

      9beeb091fb87801114273f7f0b6040f177421722685fad549ae37e07eeae3a97

      SHA512

      743e22b28a969fae4301957a08907d9dda0d5f25bfaa422b896b9d0ae4f7786ce6dbf4be7770920f75556c89b6e98293edabd1a314bcf840f71d016a9b1e0e28

      Download Submit