Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20-09-2024 09:41

General

  • Target

    ChromeSetup.msi

  • Size

    17.2MB

  • MD5

    90e7d3e1ecaee3ac54dbb8ed66b07a18

  • SHA1

    ac5e851894550338e80c5ba046c141273af476de

  • SHA256

    1cde78045d2d3ab8d1d2ad5bfd97f6805b806026e60a36a5c7849458406f3927

  • SHA512

    5df073ab043468739c3c244329e3c2114c160208237b9d583870f6bcd20feae7411dc9be390d617338c42d3db373bfcd4e39806b93afb3118c6946954d0e5cd9

  • SSDEEP

    393216:7JC9ulDuFcnsXWOcCmo72eL9pOQFYNM9wzNujzUAx8:7Xsmomo7FLejNCxx8

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 11 IoCs
  • Drops file in Windows directory 10 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 10 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • 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.

  • Modifies data under HKEY_USERS 50 IoCs
  • Modifies registry class 22 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 15 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\ChromeSetup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2500
  • 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:2664
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding F329422712D74ED40E0E5EDC56DBE12B M Global\MSI0000
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2324
      • C:\Program Files\PromoteMonitorBenevolent\AuOSovrPCaNd.exe
        "C:\Program Files\PromoteMonitorBenevolent\AuOSovrPCaNd.exe" x "C:\Program Files\PromoteMonitorBenevolent\mwKLWIWGgxnxgSuiLbNU" -o"C:\Program Files\PromoteMonitorBenevolent\" -pBnWSXXmUXNseShAWdqlU -y
        3⤵
        • Drops file in Program Files directory
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2952
      • C:\Program Files\PromoteMonitorBenevolent\igsBsAaTNp29.exe
        "C:\Program Files\PromoteMonitorBenevolent\igsBsAaTNp29.exe" -number 235 -file file3 -mode mode3 -flag flag3
        3⤵
        • Drops file in Program Files directory
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        PID:2784
      • C:\Program Files\PromoteMonitorBenevolent\ChromeSetup.exe
        "C:\Program Files\PromoteMonitorBenevolent\ChromeSetup.exe"
        3⤵
        • Executes dropped EXE
        PID:2960
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2344
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005D0" "00000000000002F8"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2744

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Config.Msi\f76ea9f.rbs

    Filesize

    7KB

    MD5

    444bf73d5150eb7761ff632fbb542118

    SHA1

    72978e93d33bb9fbfd98c3658ca0b1b8977cf2f2

    SHA256

    8a691fdb0a4c9498f2ff09368482cd16074c9d88cc9112a8201a6ec1bfc8f789

    SHA512

    016ac6a8fdda6a240ffde40826c8922857d35e2bfe745261460c9fb09966a64ae12d85a33fd94823b33063076057600efe29d618524275740b570b2c3443b672

  • C:\Program Files\PromoteMonitorBenevolent\AuOSovrPCaNd.exe

    Filesize

    574KB

    MD5

    42badc1d2f03a8b1e4875740d3d49336

    SHA1

    cee178da1fb05f99af7a3547093122893bd1eb46

    SHA256

    c136b1467d669a725478a6110ebaaab3cb88a3d389dfa688e06173c066b76fcf

    SHA512

    6bc519a7368ee6bd8c8f69f2d634dd18799b4ca31fbc284d2580ba625f3a88b6a52d2bc17bea0e75e63ca11c10356c47ee00c2c500294abcb5141424fc5dc71c

  • C:\Program Files\PromoteMonitorBenevolent\ChromeSetup.exe

    Filesize

    8.5MB

    MD5

    5adff4313fbd074df44b4eb5b7893c5e

    SHA1

    d27388ef6cf34d40e0e7666f6381fcc5bbafa0f7

    SHA256

    d0c7a4390bdd6b442b96fc76f8a38f7b756ba2c16752ea259844420161865cae

    SHA512

    f5d639922b91878cf83d97563288a3aa4cba94db3ad5e8ac11d24ef7c44b019383a4414aeba6171b4c7bfa83ea1eafc1231cc9233e3b82b5ca7dc0b3ffacbf60

  • C:\Program Files\PromoteMonitorBenevolent\igsBsAaTNp29.exe

    Filesize

    2.1MB

    MD5

    5991eb282362e4eb924e7227be83dfa0

    SHA1

    43800f4ac1fd5737092dd448de83f47eb26c84f3

    SHA256

    81e5abede9c029d1425e77384810fff317afa05dd26e010b7335d929252388ea

    SHA512

    b56105ba6ae47167db1ed531d2dd5c7e91699c5482849933cfa559e497e8175f6e2af533bf4b235b84144b753f7f018628e236294f37735ea94d3b7a149b885d

  • C:\Program Files\PromoteMonitorBenevolent\mwKLWIWGgxnxgSuiLbNU

    Filesize

    1019KB

    MD5

    97f55f3126305a0d2541258a22855be8

    SHA1

    9887f6b12721fb56b25debd94ac987af6ca45255

    SHA256

    a57ea70b35fde7910e7c51d36d85f9eaaa0800393c1b6d9dbf87175db921eafc

    SHA512

    12311bcec03ab0b13ebe39f5b889e324bcfdff27e3e2adb1c223f620d5a787a51775c3165c06124bbf97d1ccfeebe3351c42f22ddf5433d68b728cb42a853fef

  • C:\Windows\Installer\f76ea9d.msi

    Filesize

    17.2MB

    MD5

    90e7d3e1ecaee3ac54dbb8ed66b07a18

    SHA1

    ac5e851894550338e80c5ba046c141273af476de

    SHA256

    1cde78045d2d3ab8d1d2ad5bfd97f6805b806026e60a36a5c7849458406f3927

    SHA512

    5df073ab043468739c3c244329e3c2114c160208237b9d583870f6bcd20feae7411dc9be390d617338c42d3db373bfcd4e39806b93afb3118c6946954d0e5cd9

  • \Program Files\PromoteMonitorBenevolent\GigWEwXASNhD.exe

    Filesize

    832KB

    MD5

    d305d506c0095df8af223ac7d91ca327

    SHA1

    679cb4c763c84e75ccb0fa3475bd6b7a36e81c4a

    SHA256

    923111c7142b3dc783a3c722b19b8a21bcb78222d7a136ac33f0ca8a29f4cb66

    SHA512

    94d369a4db88bff9556a1d7a7fb0188ed935c3592bae09335542c5502ec878e839177be63ac3ab4af75d4dc38a3a4f5d0fd423115ac72cf5dd710c59604db796

  • memory/2324-12-0x00000000001D0000-0x00000000001D2000-memory.dmp

    Filesize

    8KB

  • memory/2784-42-0x0000000000A70000-0x0000000000A9A000-memory.dmp

    Filesize

    168KB