Analysis

  • max time kernel
    147s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-04-2024 12:49

General

  • Target

    vcredist2005_x64.exe

  • Size

    3.0MB

  • MD5

    56eaf4e1237c974f6984edc93972c123

  • SHA1

    ee916012783024dac67fc606457377932c826f05

  • SHA256

    0551a61c85b718e1fa015b0c3e3f4c4eea0637055536c00e7969286b4fa663e0

  • SHA512

    f8e15363e34db5b5445c41eea4dd80b2f682642cb8f1046f30ea4fb5f4f51b0b604f7bcb3000a35a7d3ba1d1bcc07df9b25e4533170c65640b2d137c19916736

  • SSDEEP

    49152:+r67+stI6RWGTAdyvlADUrpTmcOgohwJpEM5grO3oc1OXZViFeRyDErkLUMHzkRN:AM9l8pUr9m30L5grOQXZKAsErkbQRN

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 2 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 57 IoCs
  • 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 45 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.

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
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec /i vcredist.msi
      2⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:2916
  • 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:4576
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4272
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding ABB7B0F19E051A7CE235111776C1D062
      2⤵
      • Loads dropped DLL
      PID:3036
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:1416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Config.Msi\e57acfc.rbs

    Filesize

    73KB

    MD5

    7f68c64cdf0486204899a394a0505c4d

    SHA1

    d3d86ab0f259c70416043cd75149945959f616ce

    SHA256

    b832864c3b1f7518850b175881ee8bf4f01793753ce09deb0d1f72e42a35346a

    SHA512

    843c783a9779469716f5bc677becd3e2a4c94159b5dd4893c420da69a877a0e87cf58375730b0dd864c9fc304a98be856279db20736c7602bcb70fd0d7752ba2

  • 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

  • C:\Windows\Installer\MSIAF89.tmp

    Filesize

    28KB

    MD5

    85221b3bcba8dbe4b4a46581aa49f760

    SHA1

    746645c92594bfc739f77812d67cfd85f4b92474

    SHA256

    f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

    SHA512

    060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d

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

    Filesize

    23.7MB

    MD5

    c98c1cd855772ff4796346a4bd5ad4c9

    SHA1

    f7f4ac4723ff7a53d82e7dfd570e1c9a94d1c2f5

    SHA256

    6760bc9c63ee654596ba640983f6afa017a2a72e53716d23dbe96c3717f1c22d

    SHA512

    4e2d32492ca7a9dbcd368bffd41971f5751b764d6c8515a181fe622f0da4e13edf9963c5f92b2d5ba531cf30076cbf8b61b35c38b0f674721dc3e56633a137d1

  • \??\Volume{dfbd5e8b-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{36f9cb7f-7349-4654-aeb8-d9f77e048f2e}_OnDiskSnapshotProp

    Filesize

    6KB

    MD5

    3e287ff3e83d275aae7dfd45ef704fa1

    SHA1

    0599caf4e1bd50c5d8c07542c5cb75d3ec2a4339

    SHA256

    cea33cd95efc323713b23d200f01bcbcc8965bdba41855483206a11aa89d1a05

    SHA512

    7bd9ab9575d9d4606684146725f926c2829031cd39cbb7e0df2a61ec4c98429e26291b899a3abbd09a49a918054f0ec3e2b50582e4dbb8eeb12c5250f3d75869