Overview

overview

7

Static

static

1

C++.zip

windows7-x64

1

C++.zip

windows10-2004-x64

1

C++/Visual...20.zip

windows7-x64

1

C++/Visual...20.zip

windows10-2004-x64

1

install_all.bat

windows7-x64

7

install_all.bat

windows10-2004-x64

7

vcredist2005_x64.exe

windows7-x64

7

vcredist2005_x64.exe

windows10-2004-x64

7

vcredist2005_x86.exe

windows7-x64

7

vcredist2005_x86.exe

windows10-2004-x64

7

vcredist2008_x64.exe

windows7-x64

7

vcredist2008_x64.exe

windows10-2004-x64

7

vcredist2008_x86.exe

windows7-x64

7

vcredist2008_x86.exe

windows10-2004-x64

7

vcredist2010_x64.exe

windows7-x64

7

vcredist2010_x64.exe

windows10-2004-x64

7

vcredist2010_x86.exe

windows7-x64

7

vcredist2010_x86.exe

windows10-2004-x64

7

vcredist2012_x64.exe

windows7-x64

7

vcredist2012_x64.exe

windows10-2004-x64

7

vcredist2012_x86.exe

windows7-x64

7

vcredist2012_x86.exe

windows10-2004-x64

7

vcredist2013_x64.exe

windows7-x64

7

vcredist2013_x64.exe

windows10-2004-x64

7

vcredist2013_x86.exe

windows7-x64

7

vcredist2013_x86.exe

windows10-2004-x64

7

vcredist20...64.exe

windows7-x64

7

vcredist20...64.exe

windows10-2004-x64

7

vcredist20...86.exe

windows7-x64

7

vcredist20...86.exe

windows10-2004-x64

7

C++/install_all.bat

windows7-x64

7

C++/install_all.bat

windows10-2004-x64

7

Analysis

  • max time kernel
    144s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/08/2024, 22:24

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General

  • Target
    vcredist2005_x86.exe
  • Size 2.6MB
  • Sample240813-2bm2bazapb
  • SHA256 d6832398e3bc9156a660745f427dc1c2392ce4e9a872e04f41f62d0c6bae07a8
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10
discoverypersistenceprivilege_escalation

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • 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 57 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 4 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 45 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 11 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_x86.exe
    "C:\Users\Admin\AppData\Local\Temp\vcredist2005_x86.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2804
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\VCREDI~3.EXE
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\VCREDI~3.EXE
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2872
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec /i vcredist.msi
        3⤵
        • Enumerates connected drives
        • Event Triggered Execution: Installer Packages
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:4128
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4360,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=4408 /prefetch:8
    1⤵
      PID:2620
    • 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:772
      • C:\Windows\system32\srtasks.exe
        C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1880
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 877FF880C42BAAA127E271EA2BFD5133
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:4888
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:1436

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          e58c5fe.rbs
          • Path C:\Config.Msi\e58c5fe.rbs
          • Size 66KB
          • SHA256 bbd2824c08a0b46dc9d002bf1dcca8489a978661c19509052e23daaf511362fc
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          VCREDI~3.EXE
          • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\VCREDI~3.EXE
          • Size 2.6MB
          • SHA256 e1df4fda1f4f6a5d9faa94cc53e77458a53c56a87df4f1062708095150c86dbf
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          vcredis1.cab
          • Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\vcredis1.cab
          • Size 247KB
          • SHA256 71a4560b0eb5e45c385ce3aef154d97fa944b762f9aff3b3b9364d42bd1d5afd
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          vcredist.msi
          • Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\vcredist.msi
          • Size 2.6MB
          • SHA256 6d4f42d5856384c2566ed79bdc587993208013640b035b04540de9f05ee597d6
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          MSICD6D.tmp
          • Path C:\Windows\Installer\MSICD6D.tmp
          • Size 28KB
          • SHA256 f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          metadata-2
          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 23.7MB
          • SHA256 691ad0310199cdb1a2f5da1adc7ba5aeb801eaf6e71d4744fcc0a62ea7a3fba4
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          {c0ea9f95-abf5-4180-97a1-05173d2fefab}_OnDiskSnapshotProp
          • Path \??\Volume{ff3ab8f7-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{c0ea9f95-abf5-4180-97a1-05173d2fefab}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 6b343ba8cc5848cedb569aeba3e11228c08286b18fa604fb2ad8593c499a97bc
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download