Analysis

  • max time kernel
    16s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2025 14:29

General

  • Target

    3e5c88da873c248c46377692792999b45b2b787476970ffe339fbacc1b7b4c1cN.exe

  • Size

    87KB

  • MD5

    6c202191ccc504f18d74c68709ed6030

  • SHA1

    1d304e2b4535b1237d707454894d162dfb4e60f5

  • SHA256

    3e5c88da873c248c46377692792999b45b2b787476970ffe339fbacc1b7b4c1c

  • SHA512

    6a502ab46c52d88287347048d6467a4f3d59234cccdd9d971833a6974a47d77c1a7f3f8bb6d896183d67803038a583f82bfb362d6e412986e3f802fc3806ff47

  • SSDEEP

    1536:JxqjQ+P04wsmJCqofII3QJgkdFfMllhxjsjuRc:sr85CeDFdaPh1y9

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 2 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).

  • System Location Discovery: System Language Discovery 1 TTPs 1 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3e5c88da873c248c46377692792999b45b2b787476970ffe339fbacc1b7b4c1cN.exe
    "C:\Users\Admin\AppData\Local\Temp\3e5c88da873c248c46377692792999b45b2b787476970ffe339fbacc1b7b4c1cN.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:2432
    • C:\Users\Admin\AppData\Local\Temp\3582-490\3e5c88da873c248c46377692792999b45b2b787476970ffe339fbacc1b7b4c1cN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\3e5c88da873c248c46377692792999b45b2b787476970ffe339fbacc1b7b4c1cN.exe"
      2⤵
      • Executes dropped EXE
      PID:2360

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

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

    Filesize

    252KB

    MD5

    9e2b9928c89a9d0da1d3e8f4bd96afa7

    SHA1

    ec66cda99f44b62470c6930e5afda061579cde35

    SHA256

    8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

    SHA512

    2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

  • \Users\Admin\AppData\Local\Temp\3582-490\3e5c88da873c248c46377692792999b45b2b787476970ffe339fbacc1b7b4c1cN.exe

    Filesize

    47KB

    MD5

    823c36302f635bb48b156b9e9d11774c

    SHA1

    7e861265c20e0049e70d39755dfda79808375458

    SHA256

    bec6b9d5c5cc74481b4c541c21c5f9756d857a9d865e64289975f1af6284630a

    SHA512

    67828abc31f29c5efd919dd481615eb6c3bdc019851bdbeb703ddd77ee53fd43d4e2c03dc0a2f5b3f0b4890c158d829cac405cbc6726bfe75c363d57bbc49e1f

  • memory/2360-11-0x000000013F340000-0x000000013F392000-memory.dmp

    Filesize

    328KB

  • memory/2432-84-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2432-86-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB