Analysis

  • max time kernel
    68s
  • max time network
    54s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    28-08-2024 23:27

General

  • Target

    vcredist2005_x64.exe

  • Size

    3.0MB

  • MD5

    56eaf4e1237c974f6984edc93972c123

  • SHA1

    ee916012783024dac67fc606457377932c826f05

  • SHA256

    0551a61c85b718e1fa015b0c3e3f4c4eea0637055536c00e7969286b4fa663e0

  • SHA512

    f8e15363e34db5b5445c41eea4dd80b2f682642cb8f1046f30ea4fb5f4f51b0b604f7bcb3000a35a7d3ba1d1bcc07df9b25e4533170c65640b2d137c19916736

  • SSDEEP

    49152:+r67+stI6RWGTAdyvlADUrpTmcOgohwJpEM5grO3oc1OXZViFeRyDErkLUMHzkRN:AM9l8pUr9m30L5grOQXZKAsErkbQRN

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 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 Program Files directory 1 IoCs
  • Drops file in Windows directory 59 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 46 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 14 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\vcredist2005_x64.exe
    "C:\Users\Admin\AppData\Local\Temp\vcredist2005_x64.exe"
    1⤵
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1948
    • 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:2452
  • 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:2636
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 57767189B6A7C1032427DCD0B7A34600
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1836
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2732
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "000000000000058C" "00000000000004E0"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    4906e9b734e4491dec8fab21db374dbc

    SHA1

    4d5517e782f39f30b2f8674aa90b80be42bf2660

    SHA256

    72b1e92544e7c6998144b626ecc0b2a607262f5370efc3d28776434aa58473ea

    SHA512

    ed0fa1934b4652c5c992018725603e9d0dc8ed8a2269fc3523e4212604eb818bf4969d7d8e75e5b60ab6123a6b85c2f0028bb45d1f703db40597e01e3b6466fa

  • C:\Users\Admin\AppData\Local\Temp\CabDE3E.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

    Filesize

    312KB

    MD5

    77a9bff5af149160775741e204734d47

    SHA1

    7b5126af69b5a79593f39db94180f1ff11b0e39d

    SHA256

    20a26ed9a1edf7763a9b515522c5e29720048a482c7fbc8b7ff6bbdd27e61038

    SHA512

    bb0440f58f07e113bddd9a0afb5aab8af6493218784fe5fa6f4032e3a37088f91b7e766dee87cec4a9ea11d425d27b3b536430de3a52222e8bca3e0247d81e3b

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

    Filesize

    3.0MB

    MD5

    6dbdf338a0a25cdb236d43ea3ca2395e

    SHA1

    685b6ea61e574e628392eaac8b10aff4309f1081

    SHA256

    200fef5d4994523a02c4daa00060db28eb289b99d47fc6c1305183101e72bdeb

    SHA512

    6b5b31c55cf72ab92b17fb6074b3901a1e6afe0796ef9bc831e4dfb97450376d2889cd24b1cf3fce60eb3c1bcd1b31254b5cfa3ef6107974dfa0b35c233daf5a

  • \Windows\Installer\MSIE10E.tmp

    Filesize

    28KB

    MD5

    85221b3bcba8dbe4b4a46581aa49f760

    SHA1

    746645c92594bfc739f77812d67cfd85f4b92474

    SHA256

    f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

    SHA512

    060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d