Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-12-2024 03:19

General

  • Target

    c2d5ca88f3cef3d7269927f81c706251b9f0d56c50969a800e0a7eadeede30be.exe

  • Size

    627KB

  • MD5

    1d56889095c80445fe070a698139e9de

  • SHA1

    1142a8be42dd3761ea08ba6575027521b089ef37

  • SHA256

    c2d5ca88f3cef3d7269927f81c706251b9f0d56c50969a800e0a7eadeede30be

  • SHA512

    3bea47099870f321f98cf9e87f486edf4f113df1ae171b57bb492a9bb135c3b9046ba9f1f40936c765969c4be8f3b4ba80f478018cf815145aa9da907ac25c02

  • SSDEEP

    12288:Ym31gW73grFaJw1gQFK3CARY4x86PkcGL7rp:Ym3KWWAS1gQnqLxOL7

Malware Config

Signatures

  • Detect Neshta payload 6 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c2d5ca88f3cef3d7269927f81c706251b9f0d56c50969a800e0a7eadeede30be.exe
    "C:\Users\Admin\AppData\Local\Temp\c2d5ca88f3cef3d7269927f81c706251b9f0d56c50969a800e0a7eadeede30be.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:628
    • C:\Users\Admin\AppData\Local\Temp\c2d5ca88f3cef3d7269927f81c706251b9f0d56c50969a800e0a7eadeede30be.exe
      "C:\Users\Admin\AppData\Local\Temp\c2d5ca88f3cef3d7269927f81c706251b9f0d56c50969a800e0a7eadeede30be.exe"
      2⤵
      • Loads dropped DLL
      • Modifies system executable filetype association
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:2640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

    Filesize

    547KB

    MD5

    d83e2d22414c8d678dafcd1527e6e58a

    SHA1

    6810470738626131f34106fc59feb776541a65ab

    SHA256

    859c30f586ffd91579dac662b3673f44c2d2b86c6aa47b5fd5505574a2e1d859

    SHA512

    d9a50bc6202bf51704cbd3ef56183df5579d9fffc11efcde5e27397ba15d5e6be154e7dd52aa8722045420fd7992066332b7ca72037f2fd85c59c5da9d169a4d

  • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/628-0-0x0000000074ABE000-0x0000000074ABF000-memory.dmp

    Filesize

    4KB

  • memory/628-1-0x0000000001380000-0x0000000001424000-memory.dmp

    Filesize

    656KB

  • memory/628-2-0x0000000074AB0000-0x000000007519E000-memory.dmp

    Filesize

    6.9MB

  • memory/628-3-0x0000000000380000-0x000000000038C000-memory.dmp

    Filesize

    48KB

  • memory/628-4-0x0000000074ABE000-0x0000000074ABF000-memory.dmp

    Filesize

    4KB

  • memory/628-5-0x0000000074AB0000-0x000000007519E000-memory.dmp

    Filesize

    6.9MB

  • memory/628-6-0x0000000007EC0000-0x0000000007F30000-memory.dmp

    Filesize

    448KB

  • memory/628-21-0x0000000074AB0000-0x000000007519E000-memory.dmp

    Filesize

    6.9MB

  • memory/2640-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2640-9-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-17-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-13-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-12-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-11-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-10-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-16-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-8-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-18-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-20-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-7-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-101-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2640-103-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB