Overview

overview

7

Static

static

3

KLAVER V2.3.exe

windows10-2004-x64

5

Visual-C-R...ll.bat

windows10-2004-x64

7

Visual-C-R...64.exe

windows10-2004-x64

7

Visual-C-R...86.exe

windows10-2004-x64

7

Visual-C-R...64.exe

windows10-2004-x64

7

Visual-C-R...86.exe

windows10-2004-x64

7

Visual-C-R...64.exe

windows10-2004-x64

7

Visual-C-R...86.exe

windows10-2004-x64

7

Visual-C-R...64.exe

windows10-2004-x64

7

Visual-C-R...86.exe

windows10-2004-x64

7

Visual-C-R...64.exe

windows10-2004-x64

7

Visual-C-R...86.exe

windows10-2004-x64

7

Visual-C-R...64.exe

windows10-2004-x64

4

Visual-C-R...86.exe

windows10-2004-x64

4

Analysis

  • max time kernel
    92s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-09-2024 16:12

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General

  • Target

    Visual-C-Runtimes-All-in-One-May-2024/vcredist2005_x86.exe

  • Size

    2.6MB

  • MD5

    ce2922f83fb4b170affce0ea448b107b

  • SHA1

    b8fab0bb7f62a24ddfe77b19cd9a1451abd7b847

  • SHA256

    4ee4da0fe62d5fa1b5e80c6e6d88a4a2f8b3b140c35da51053d0d7b72a381d29

  • SHA512

    e94b077e054bd8992374d359f3adc4d1d78d42118d878556715d77182f7d03635850b2b2f06c012ccb7c410e2b3c124cf6508473efe150d3c51a51857ce1c6b0

  • SSDEEP

    49152:rqGRIgg2SirwkF9xdtb43lyGKCafpKkiwnaDahmPzpY4FPyaza:rxxLFfY/KCCpKk9aWMzZyau

Score
7/10
discoverypersistenceprivilege_escalation

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 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 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\Visual-C-Runtimes-All-in-One-May-2024\vcredist2005_x86.exe
    "C:\Users\Admin\AppData\Local\Temp\Visual-C-Runtimes-All-in-One-May-2024\vcredist2005_x86.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5024
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec /i vcredist.msi
      2⤵
      • Enumerates connected drives
      • Event Triggered Execution: Installer Packages
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4488
  • 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:2108
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3872
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding B5E8019134C09569DD1ADA73CCE38951
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:672
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:1976

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Initial Access

    Execution

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Event Triggered Execution

    1
    T1546

    Installer Packages

    1
    T1546.016

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Event Triggered Execution

    1
    T1546

    Installer Packages

    1
    T1546.016

    Defense Evasion

    Modify Registry

    1
    T1112

    System Binary Proxy Execution

    1
    T1218

    Msiexec

    1
    T1218.007

    Credential Access

    Discovery

    Query Registry

    2
    T1012

    Peripheral Device Discovery

    2
    T1120

    System Information Discovery

    2
    T1082

    System Location Discovery

    1
    T1614

    System Language Discovery

    1
    T1614.001

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Resource Development

    Reconnaissance

    Replay Monitor

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    Downloads

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

      247KB

      MD5

      cc064d4b81619991de8131a86ad77681

      SHA1

      88d80d86cc20c27d7d2a872af719300bd2bb73f9

      SHA256

      913ee5a1cae3e5a1872b3a5efaaa00c58e4beb692492b138f76967da671b0477

      SHA512

      5aff0eb26cfc187bf58721b2b6d73357d9f1e66d1ac5340ad9ddc08b40ad0eda27a144cb3b650604637a7476c282ded83ed890de98a73ccaf0cc021da3a9eb25

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

      2.6MB

      MD5

      b20bbeb818222b657df49a9cfe4fed79

      SHA1

      3f6508e880b86502773a3275bc9527f046d45502

      SHA256

      91bdd063f6c53126737791c9eccf0b2f4cf44927831527245bc89a0be06c0cb4

      SHA512

      f534bc7bf1597e728940e6c3b77f864adfaa413bb1e080458326b692b0f96bddf4fbd294eeed36d7764a3578e6c8e919488bbf63b8fe2d4355ab3efd685424a4

      Download Submit
    • C:\Windows\Installer\MSIE271.tmp
      Filesize

      28KB

      MD5

      85221b3bcba8dbe4b4a46581aa49f760

      SHA1

      746645c92594bfc739f77812d67cfd85f4b92474

      SHA256

      f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

      SHA512

      060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d

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

      23.7MB

      MD5

      464e68c6d49f9e5464e42cb8b2a2c02f

      SHA1

      1aa80a8bf58dec38f2248e7e49eab3184ed0d0b1

      SHA256

      09b1b7e9c9b6039e7b1aea6513ed327450691bf2234ad5d6fe884c206493f409

      SHA512

      a7ea08735cb9a44562f2f5fce1bd83714776bf28eaad9f0e163542250f0f6275f7891a16433cb84f94c420e1921fd8c8bea27a7fce1d669c07e37aedb333249e

      Download Submit
    • \??\Volume{83bffa96-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{6b47c2a8-47fc-400a-8ea0-3a1413e44eef}_OnDiskSnapshotProp
      Filesize

      6KB

      MD5

      98320692aa59aede462117592edc812e

      SHA1

      38b837b884f9fc0dbed82121ef26e56107363da8

      SHA256

      fd75f9f1e7737a383ded508c2a9bfb915bc92fc39316fd3196cb904f9a58b5bd

      SHA512

      97656334b44c250fe666b8a4255d19b8d647a281afd4a6543271faef1a2528e87bf3ca06f1d35ecf450620d1ac725710c5780c64c175a08a4bb378eb28aff156

      Download Submit