Analysis

  • max time kernel
    121s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    13/10/2024, 15:30

General

  • Target

    $TEMP/VirtualBoxPortableTemp/Test.msi

  • Size

    32KB

  • MD5

    8f847011d0eb0ab210d72f8df444a510

  • SHA1

    99c753b1d04e459d03c655c093e363aebb3557f7

  • SHA256

    3f352c15b6251f87e70dfdfe96ee729f5eb08f712451384ab9ef312fb25ffa53

  • SHA512

    98a534b2bc711eaa2491d8d6950359f5ed4a731b733d884745901e4c665fabe3b7d7b4c8fd82d2692bcd1ee0f6d296af46e2f14a9fd9db4e44b121be5bad3ec4

  • SSDEEP

    384:z2CMqS6GmOYSvEM5IC0IXey3M5IC0ioXhhU:Ve5oMmCTeWMmC

Malware Config

Signatures

  • 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 10 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\$TEMP\VirtualBoxPortableTemp\Test.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1652
  • 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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2124
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2024
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005DC" "00000000000003D4"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Config.Msi\f76b5ab.rbs

    Filesize

    7KB

    MD5

    a54f120730eda770e440f901d36b4fa8

    SHA1

    1ef5b3cc5c8614df3a9dd320820bda8afc11d199

    SHA256

    a18096b0dde6e76d031210bae20abfd73315859d161c2d613f8e8d3860de0278

    SHA512

    3a30c127b9dea6eb5d57ef0c0a82083afbdc365e7a5fc0fd2c8512cfdf4103ad644fa7350bb4a10c201ffe40d250175331883cb18a59c2e7828729593f3f4988

  • C:\Windows\Installer\f76b5a9.msi

    Filesize

    32KB

    MD5

    8f847011d0eb0ab210d72f8df444a510

    SHA1

    99c753b1d04e459d03c655c093e363aebb3557f7

    SHA256

    3f352c15b6251f87e70dfdfe96ee729f5eb08f712451384ab9ef312fb25ffa53

    SHA512

    98a534b2bc711eaa2491d8d6950359f5ed4a731b733d884745901e4c665fabe3b7d7b4c8fd82d2692bcd1ee0f6d296af46e2f14a9fd9db4e44b121be5bad3ec4