Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-02-2025 23:52

General

  • Target

    58dc2e150630bd6c2249f065cd7d11958bbba83bdfc32d1542ce7049dc15883c.exe

  • Size

    235KB

  • MD5

    b38a1687c185c8d6e79c44777184a714

  • SHA1

    f34c09a31c99678dc666311f0f5055dccabf4b21

  • SHA256

    58dc2e150630bd6c2249f065cd7d11958bbba83bdfc32d1542ce7049dc15883c

  • SHA512

    4e95150d14da96a473cc4d1458ec0939d3155635bb9e1318371e14bcbcde1ac77eeaf2caa255ab32d901c3dae30f913c1ba4771efcffe04058a05fe4c3303fe2

  • SSDEEP

    3072:sr85C67GEpji1wvBtLBdQqaMBHJR5p5PqQre3EuMuxj9wyqr9aNtelu9w:k967NRjBdQqVBJR9Cl3EuM28r9aNtuuK

Malware Config

Signatures

  • Detect Neshta payload 5 IoCs
  • Neshta

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

  • Neshta family
  • Downloads MZ/PE file 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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.

  • 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 3 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\58dc2e150630bd6c2249f065cd7d11958bbba83bdfc32d1542ce7049dc15883c.exe
    "C:\Users\Admin\AppData\Local\Temp\58dc2e150630bd6c2249f065cd7d11958bbba83bdfc32d1542ce7049dc15883c.exe"
    1⤵
    • Checks computer location settings
    • 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:4656
    • C:\Users\Admin\AppData\Local\Temp\3582-490\58dc2e150630bd6c2249f065cd7d11958bbba83bdfc32d1542ce7049dc15883c.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\58dc2e150630bd6c2249f065cd7d11958bbba83bdfc32d1542ce7049dc15883c.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:700
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDQ5MjgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxNzQzMjM4OTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0ODQ5MDQ3NTY0Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:3180

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\58dc2e150630bd6c2249f065cd7d11958bbba83bdfc32d1542ce7049dc15883c.exe

    Filesize

    195KB

    MD5

    c6890f80cc056fe63619ec5361e87e51

    SHA1

    026254cd8e60a6d6a70dc7c7dafae099ee12712b

    SHA256

    91179d58cf22ae78ddb61457e0ffdbf31d290899c3514b9cce000e6818e834c7

    SHA512

    d919c56ab13d4bb722fd01f6be64aa9973c5757146cd7fb58710a897daa67d9cb28996a94ed4debe0e1b14987b2b9e97fedbf4029a109eb5378dda9a3299ef51

  • memory/4656-121-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4656-122-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4656-124-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4656-126-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB