Analysis

  • max time kernel
    132s
  • max time network
    171s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    26-03-2023 15:44

General

  • Target

    PassMark PerformanceTest 10.2.1008 Portable/App/PerformanceTest/PerformanceTest64.exe

  • Size

    38.4MB

  • MD5

    a6cdb235f89dff35fb522cf62d4692d4

  • SHA1

    c481e6f82afc9c100f627c5ce9d5517229fbfd01

  • SHA256

    7b51752fc6c68737e80dbd467df33cbc49ecf32d9d6cb3f9ce7b97183add5098

  • SHA512

    b2b0850d18c87def067f32e9e4a42b38fc0346184133465c6c07feea708958c9e3964d1daca7365aab2dedc57f75756e4450f62985cdc9b4851c87a6bc36b2ea

  • SSDEEP

    393216:oEeoY+ZLora8K+s7jfQws80KmDJ2mXynzlJKOXpTU2KqdmdLjbbIFBryN:oKYC8Cj3onjbuB8

Malware Config

Signatures

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: LoadsDriver 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PassMark PerformanceTest 10.2.1008 Portable\App\PerformanceTest\PerformanceTest64.exe
    "C:\Users\Admin\AppData\Local\Temp\PassMark PerformanceTest 10.2.1008 Portable\App\PerformanceTest\PerformanceTest64.exe"
    1⤵
    • Enumerates connected drives
    • Maps connected drives based on registry
    • Writes to the Master Boot Record (MBR)
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    PID:1992

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Bootkit

1
T1067

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Discovery

Query Registry

3
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    61KB

    MD5

    e71c8443ae0bc2e282c73faead0a6dd3

    SHA1

    0c110c1b01e68edfacaeae64781a37b1995fa94b

    SHA256

    95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

    SHA512

    b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

  • C:\Users\Admin\AppData\Local\Temp\TarD216.tmp
    Filesize

    161KB

    MD5

    be2bec6e8c5653136d3e72fe53c98aa3

    SHA1

    a8182d6db17c14671c3d5766c72e58d87c0810de

    SHA256

    1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

    SHA512

    0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

  • memory/1992-55-0x0000000001DA0000-0x0000000001DAA000-memory.dmp
    Filesize

    40KB

  • memory/1992-56-0x0000000001DA0000-0x0000000001DAA000-memory.dmp
    Filesize

    40KB

  • memory/1992-57-0x0000000001DA0000-0x0000000001DAA000-memory.dmp
    Filesize

    40KB

  • memory/1992-58-0x0000000001DA0000-0x0000000001DAA000-memory.dmp
    Filesize

    40KB