Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20230703-en
  • resource tags

    arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
  • submitted
    05-07-2023 03:44

General

  • Target

    0f849525b31bc8eb26642e47cdcf9a3b9c945e5e481dd427a3175486278ac2db.exe

  • Size

    709KB

  • MD5

    357f9298368e64b2febeb6742f0a2552

  • SHA1

    ba9efdb353c2485666991c44d3aa699ee8802d3d

  • SHA256

    0f849525b31bc8eb26642e47cdcf9a3b9c945e5e481dd427a3175486278ac2db

  • SHA512

    3369cf6e8b392223bb34acac767000dac773547a3ca6bc70d2d3ac0ce73a297377dd224dfc006ddbcea149f6510e4c17e62a03354e74a9e52ec20edf0374778b

  • SSDEEP

    12288:dgQ44tKy5S3Uc7I6aA+SHGvwygKbUliOLQdxR8pSwM4vXVFQIq:d0CKMgUUa71wliJ2pSV4PvQf

Score
7/10

Malware Config

Signatures

  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 2 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0f849525b31bc8eb26642e47cdcf9a3b9c945e5e481dd427a3175486278ac2db.exe
    "C:\Users\Admin\AppData\Local\Temp\0f849525b31bc8eb26642e47cdcf9a3b9c945e5e481dd427a3175486278ac2db.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\Users\Admin\AppData\Local\Temp\0f849525b31bc8eb26642e47cdcf9a3b9c945e5e481dd427a3175486278ac2db.exe
      "C:\Users\Admin\AppData\Local\Temp\0f849525b31bc8eb26642e47cdcf9a3b9c945e5e481dd427a3175486278ac2db.exe"
      2⤵
      • Checks QEMU agent file
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      PID:2112

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nso3288.tmp\System.dll

    Filesize

    11KB

    MD5

    8b3830b9dbf87f84ddd3b26645fed3a0

    SHA1

    223bef1f19e644a610a0877d01eadc9e28299509

    SHA256

    f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37

    SHA512

    d13cfd98db5ca8dc9c15723eee0e7454975078a776bce26247228be4603a0217e166058ebadc68090afe988862b7514cb8cb84de13b3de35737412a6f0a8ac03

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Vintertid.lnk

    Filesize

    1KB

    MD5

    a01ca406629f90b90b8d6f51b6ae6db3

    SHA1

    c71446ac9b081c8cb52a4e77c64bf0e83d833d63

    SHA256

    582bcaf82ea7a6b0a6407626f06841c0eeae7ae27846d87737ac014b9b9222bb

    SHA512

    083987421a784c7039d9305d2989e875f3e182ac7896f15a981418aca6caa4dcc009d7ddb73cc127e417705a63421e5c4ddcb20b705c2bb9fbead8f12db00018

  • \Users\Admin\AppData\Local\Temp\nso3288.tmp\System.dll

    Filesize

    11KB

    MD5

    8b3830b9dbf87f84ddd3b26645fed3a0

    SHA1

    223bef1f19e644a610a0877d01eadc9e28299509

    SHA256

    f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37

    SHA512

    d13cfd98db5ca8dc9c15723eee0e7454975078a776bce26247228be4603a0217e166058ebadc68090afe988862b7514cb8cb84de13b3de35737412a6f0a8ac03

  • \Users\Admin\AppData\Local\Temp\nso3288.tmp\System.dll

    Filesize

    11KB

    MD5

    8b3830b9dbf87f84ddd3b26645fed3a0

    SHA1

    223bef1f19e644a610a0877d01eadc9e28299509

    SHA256

    f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37

    SHA512

    d13cfd98db5ca8dc9c15723eee0e7454975078a776bce26247228be4603a0217e166058ebadc68090afe988862b7514cb8cb84de13b3de35737412a6f0a8ac03

  • memory/2112-78-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB

  • memory/2112-79-0x0000000000400000-0x0000000001462000-memory.dmp

    Filesize

    16.4MB