Overview

overview

7

Static

static

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

4

vcredist20...64.exe

windows10-2004-x64

4

vcredist20...86.exe

windows7-x64

4

vcredist20...86.exe

windows10-2004-x64

4

Analysis

  • max time kernel
    100s
  • 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
    03-08-2024 14:17

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General

  • Target

    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\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:1388
    • 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:2872
  • 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:1332
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2932
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 876EFD5E139371CB8324BCDD881F4EE0
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2828
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:1664

Network

MITRE ATT&CK Enterprise v15

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\MSIDD9E.tmp
    Filesize

    28KB

    MD5

    85221b3bcba8dbe4b4a46581aa49f760

    SHA1

    746645c92594bfc739f77812d67cfd85f4b92474

    SHA256

    f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

    SHA512

    060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d

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

    23.7MB

    MD5

    296d0a972c5b57e02c02018da72c8d7a

    SHA1

    de7b59ff44488a04ae949c472b0ae2adfba3cca0

    SHA256

    bc02c84014628638f18af54965aa00262082a3d4ceddd74f5c595e6b8e942e94

    SHA512

    1279c308f1a28dec117d2055bb0a109244e2e7392bbeb6d2777461eb64552d13626e8569652c89ccb5412c9bed1d9e38bc87e86fce8da337ba38b5995c802f81

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  • \??\Volume{f930bed6-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{ff926c3c-78d0-410d-b0d8-10e939fbf4f3}_OnDiskSnapshotProp
    Filesize

    6KB

    MD5

    cf3a7e865e3c316e3078f638fe386d4e

    SHA1

    19b9c7741b100baa6e5f00c89a53b141a1389834

    SHA256

    9468b2a31392d2c20c7a34c965a7054e206c1dfd42b9d3cddd79cb136219e27b

    SHA512

    a7bca1de773db0868cbbb683cd53cb2f95a6608cc3453954b1d91a4cf2fb89f8c5ce5368dba732ac977d5ca4070692e128ef95d18e275b3d40d3ec5478b6ec49

    Download Submit