Analysis

  • max time kernel
    43s
  • max time network
    109s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 16:56

General

  • Target

    1e4e62fe9bbe9a19978b3dc4f7b7ef41bbd555e6e78db.exe

  • Size

    292KB

  • MD5

    252a2921b046023bc69dc7abab70a73b

  • SHA1

    ded51e77e9f2d1a7ed15e03511785930b040e79d

  • SHA256

    1e4e62fe9bbe9a19978b3dc4f7b7ef41bbd555e6e78db4407545b9a845061e24

  • SHA512

    b9738aad44894f61d9ccdbe18e549177f52a8421615930b3c510e82e09f15d5a1cee66a5b03ef7f26ed28374ad8853ed07a64c939af33c66ac4a28d78a017bd9

  • SSDEEP

    6144:HIgiKxtFbLGxHNJPrcUoSSwu5To9j5nmnaaf9Bg+RhbqUYH:HfFPGJrcUoSSwu5To9jQnao9BrRhb

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1e4e62fe9bbe9a19978b3dc4f7b7ef41bbd555e6e78db.exe
    "C:\Users\Admin\AppData\Local\Temp\1e4e62fe9bbe9a19978b3dc4f7b7ef41bbd555e6e78db.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1836
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\1e4e62fe9bbe9a19978b3dc4f7b7ef41bbd555e6e78db.exe" & exit
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1348
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:1988

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/1348-75-0x0000000000000000-mapping.dmp

  • memory/1836-54-0x0000000075771000-0x0000000075773000-memory.dmp

    Filesize

    8KB

  • memory/1836-55-0x000000006EEF0000-0x000000006EFE3000-memory.dmp

    Filesize

    972KB

  • memory/1988-76-0x0000000000000000-mapping.dmp