Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-11-2024 23:37

General

  • Target

    5f64a5d44ff9f2c34f2d4ae78354ecbb1462b1b2993f19bd1ee81ee52d9da167.exe

  • Size

    1.6MB

  • MD5

    09df699ac4f7cae73e3de775d14b31d7

  • SHA1

    0dcb3ce460d0908ee6ac4bd766d51bccfc4c37c3

  • SHA256

    5f64a5d44ff9f2c34f2d4ae78354ecbb1462b1b2993f19bd1ee81ee52d9da167

  • SHA512

    80cd679d67df14779b001d97158841ce39d8c86b2bbe632358a188d4cd85559c18deb8f95f660f94c4d6508203e6e535821d0798b24728807c652f965959597a

  • SSDEEP

    12288:Z+1/fqxzUv94+7XCvE/oa2jo0VVUZoTnG3vIpaBuKNB7whzQMY:dxzIYE/oa2jo0VVUZknG3v14ghwha

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • Neshta

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

  • Neshta family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 10 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.

  • 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).

  • Program crash 1 IoCs
  • 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f64a5d44ff9f2c34f2d4ae78354ecbb1462b1b2993f19bd1ee81ee52d9da167.exe
    "C:\Users\Admin\AppData\Local\Temp\5f64a5d44ff9f2c34f2d4ae78354ecbb1462b1b2993f19bd1ee81ee52d9da167.exe"
    1⤵
    • 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
    • Suspicious use of WriteProcessMemory
    PID:3012
    • C:\Users\Admin\AppData\Local\Temp\3582-490\5f64a5d44ff9f2c34f2d4ae78354ecbb1462b1b2993f19bd1ee81ee52d9da167.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\5f64a5d44ff9f2c34f2d4ae78354ecbb1462b1b2993f19bd1ee81ee52d9da167.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2768 -s 148
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:1044

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    547KB

    MD5

    cf6c595d3e5e9667667af096762fd9c4

    SHA1

    9bb44da8d7f6457099cb56e4f7d1026963dce7ce

    SHA256

    593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

    SHA512

    ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

  • C:\Users\Admin\AppData\Local\Temp\3582-490\5f64a5d44ff9f2c34f2d4ae78354ecbb1462b1b2993f19bd1ee81ee52d9da167.exe

    Filesize

    1.6MB

    MD5

    fe5070cefb0b637eafad356f41adc8c3

    SHA1

    3e9dbdae775e3567dc88a27d79f214100830f09a

    SHA256

    dfc70b3f3163447ea5c196b8b0409bbbf69169a57affa392ddb57e33d0442bef

    SHA512

    9960c3fa21bdf92cb3fa566b18990214bc246a43f8e4ee85020dbefbe83d41912189c330e8e1607a33524f8d33f2fde201afa9bd0565045bfcc664544f174635

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • memory/3012-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3012-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB