Resubmissions

22-01-2025 14:45

250122-r45fys1mdw 6

22-01-2025 14:10

250122-rgyd5azlhy 6

11-12-2023 14:13

231211-rjk7ksacb3 7

Analysis

  • max time kernel
    898s
  • max time network
    900s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    22-01-2025 14:45

General

  • Target

    c7ec098093eb08d2b36d1c37b928d716d8da021f93319a093808a7ceb3b35dc1.msi

  • Size

    836KB

  • MD5

    e79180380997a855c8d19be02d035b7f

  • SHA1

    8fabc9d73f32c0c01083b438ffc6f0d3bee6e80e

  • SHA256

    c7ec098093eb08d2b36d1c37b928d716d8da021f93319a093808a7ceb3b35dc1

  • SHA512

    356665d2b08c652f9bb0cc3c6b441d6bcfcb02bccef876ad6c79150641ad4aa83923338b7fd085b0296b622f746daefc1eeef93869cf0b407d384c689b2a309e

  • SSDEEP

    24576:j2XSjbixTs21LN5w6yfygtF9M5ZXn3lftfsATt:y/42Yy8vs3ftfz

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 Windows directory 10 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 12 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\c7ec098093eb08d2b36d1c37b928d716d8da021f93319a093808a7ceb3b35dc1.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:772
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2484
    • C:\Users\Admin\AppData\Local\MUxPOTy\OnesNotem.exe
      C:\Users\Admin\AppData\Local\MUxPOTy\OnesNotem.exe
      2⤵
      • Adds Run key to start application
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2152
      • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
        "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\郭台銘選擇賴佩霞為總統副手深層考量.pdf"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:1968
      • C:\Users\Public\VirtualFile\OnesNotem.exe
        C:\Users\Public\VirtualFile\OnesNotem.exe 877
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1744
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3068
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005E0" "0000000000000494"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Config.Msi\f76d387.rbs

    Filesize

    8KB

    MD5

    003c825b1a323277661fea9d68a307b9

    SHA1

    7486ab34b5aa274e4807c5c06698b20fd036418a

    SHA256

    e4dea4c87ad8f8a213e6629ffd365f975f55806fd2bb9fc889c08fb4b6827cc0

    SHA512

    5ad7ef00c22ef5c97dc51041c82ec2e7cced831be9f9357a61f738280508d0227260cc85413cc7f995ebe962f630ea1fbc118f3af07e8555a22a3f949f02f067

  • C:\Users\Admin\AppData\Local\MUxPOTy\NoteLogger.dat

    Filesize

    718KB

    MD5

    b143e9814f3ce07fa7176ecdd4dfda89

    SHA1

    cb8314e9a25116f698ea74300cfdb35855f48905

    SHA256

    908ff3a80ef065ab4be1942e0d41583903f6aac02d97df6b4a92a07a633397a8

    SHA512

    038c5947f631e1143e3ffe6807d26755e7c39c8af7d5f95575859ab4841a1f4f1f1cc67ee7ab31b7a6f37667df32921cb1c12d6c0f53baa151fab66f350c032d

  • C:\Users\Admin\AppData\Local\MUxPOTy\OnesNotem.exe

    Filesize

    95KB

    MD5

    32c26797ab646074a2bb562f9d10adb5

    SHA1

    f478d70bc193f7c24da563e9eda7eb86239bbe12

    SHA256

    b9836265c6bfa17cd5e0265f32cedb1ced3b98e85990d000dc8e1298d5d25f93

    SHA512

    e68f541ef999a0ff91e24090ea80ace97e8e8a600e1f1063954cf575f431cada9b501fdab9c87b1b9da8cb779b5f351e36ccba998e24fb7c75ded387a913fe2d

  • C:\Users\Admin\AppData\Local\Temp\郭台銘選擇賴佩霞為總統副手深層考量.pdf

    Filesize

    96KB

    MD5

    153f31b1dbe2d7b6a3aa41ba6338e129

    SHA1

    87731dff3f5aa93fbb9161cc51381b36d7824ed5

    SHA256

    c6ef220d0c6e9015bdfb7977ff15e7f2c4c0dbfcd3b28ffb3066fe6d21251322

    SHA512

    ac817f3e544bc1f2ac4784432ea12f948cafc4e4fbd9fd69d5c86b9116c72ff6d3652c851f5b8358e7c6ecb3d26d3bd856ea1d5124866ad1f4b42df15ef40d48

  • C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

    Filesize

    3KB

    MD5

    8b82d8f9796b9e77671410232971f6e5

    SHA1

    b095fd5367e2ffc5ae3b3bb6908de887f5cd991c

    SHA256

    d563c432da76d9cd59e10782dc0f4ed9bad628613d612382a8e58f88d29b4c17

    SHA512

    5127d2ca0aaa2d718820f2505d009aca4527d37af0501e9ed1c2da821572e21b8b06ac06a3231db517ca5a900b382912cc97bfc34bd59fe5aa8cb92c88df076c

  • C:\Windows\Installer\f76d385.msi

    Filesize

    836KB

    MD5

    e79180380997a855c8d19be02d035b7f

    SHA1

    8fabc9d73f32c0c01083b438ffc6f0d3bee6e80e

    SHA256

    c7ec098093eb08d2b36d1c37b928d716d8da021f93319a093808a7ceb3b35dc1

    SHA512

    356665d2b08c652f9bb0cc3c6b441d6bcfcb02bccef876ad6c79150641ad4aa83923338b7fd085b0296b622f746daefc1eeef93869cf0b407d384c689b2a309e

  • \Users\Admin\AppData\Local\MUxPOTy\msi.dll

    Filesize

    88KB

    MD5

    5f39a964af306f40536aa6ac57b66758

    SHA1

    b84a5a5837e8aa5e5c8181f4589f9ad490acb55f

    SHA256

    651c096cf7043a01d939dff9ba58e4d69f15b2244c71b43bedb4ada8c37e8859

    SHA512

    9b33dd995ed714e490e564c6d8e1fe85c382d2e9f20e24adc831af3f390c3a52d3f3a53172e07d5461665fb3d092b230481cecaf19b8aa0ebc9b1b84c3581230

  • memory/1744-68-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-111-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-49-0x0000000002520000-0x00000000061C6000-memory.dmp

    Filesize

    60.6MB

  • memory/1744-132-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-50-0x0000000002520000-0x00000000061C6000-memory.dmp

    Filesize

    60.6MB

  • memory/1744-51-0x0000000002520000-0x00000000061C6000-memory.dmp

    Filesize

    60.6MB

  • memory/1744-129-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-125-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-71-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-84-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-87-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-89-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-96-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-98-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-105-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-107-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-123-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-113-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/1744-116-0x0000000074380000-0x00000000743A6000-memory.dmp

    Filesize

    152KB

  • memory/2152-48-0x00000000753D0000-0x00000000753F6000-memory.dmp

    Filesize

    152KB

  • memory/2152-29-0x0000000002560000-0x0000000006206000-memory.dmp

    Filesize

    60.6MB

  • memory/2152-30-0x0000000002560000-0x0000000006206000-memory.dmp

    Filesize

    60.6MB

  • memory/2152-43-0x0000000002560000-0x0000000006206000-memory.dmp

    Filesize

    60.6MB