Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-12-2024 07:24

General

  • Target

    c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.exe

  • Size

    909KB

  • MD5

    ab97179150a3bf7ed20db8d63f2cbc5c

  • SHA1

    635b74b51cc13bbb40dc58b24fe1f86353dc2340

  • SHA256

    c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f

  • SHA512

    df977e12e6f5bccd52f59ed849f7fe5a350b1ca7259497abe5b8794880f725433d17dc5ced64e952b61758f54bd9aa6657f1976e771f1b010a3b70730fd0313c

  • SSDEEP

    24576:X6RUW+a1GDFcvn1w8B+K6EvxL91BoQ9uZUR+zZdmbh:KEa1Gs1nB+yvxLpV9u1O

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

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

  • Neshta family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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.

  • Modifies registry class 1 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.exe
    "C:\Users\Admin\AppData\Local\Temp\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.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:4680
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5064
      • C:\Users\Admin\AppData\Local\Temp\is-A47IB.tmp\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-A47IB.tmp\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.tmp" /SL5="$8004A,471397,121344,C:\Users\Admin\AppData\Local\Temp\3582-490\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.exe

    Filesize

    868KB

    MD5

    bd77a83b835ea389279bd181c09fa396

    SHA1

    9545dde00a165ce756d8ad79daadeda4c181717c

    SHA256

    b0438ab9b87aaa4cc65aba9dbce4a1c33c403ca4b855716aad9f190937237ba6

    SHA512

    499779d7a82cbd90fe58b909a73f4ab1032b76f606be68ef52694270f9d19a5d70ae4b4c7abf3aabba7f195db6004a444d811607169031010e66b2ba6cf00250

  • C:\Users\Admin\AppData\Local\Temp\is-A47IB.tmp\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.tmp

    Filesize

    1.1MB

    MD5

    34acc2bdb45a9c436181426828c4cb49

    SHA1

    5adaa1ac822e6128b8d4b59a54d19901880452ae

    SHA256

    9c81817acd4982632d8c7f1df3898fca1477577738184265d735f49fc5480f07

    SHA512

    134ff4022571efd46f7a62e99b857ebe834e9916c786345908010f9e1fb90be226b740ddee16ae9290fe45c86be7238c4555e422abe66a461d11545e19734beb

  • C:\Users\Admin\AppData\Local\Temp\is-CUFQH.tmp\idp.dll

    Filesize

    228KB

    MD5

    9a83f220bf8ca569e3cfa654539a47a4

    SHA1

    9d1fb7087c12512d5f66d9d75f2fbae8e1196544

    SHA256

    b1c4c9b2dd6a40974fa8789b218b52d967f5ccd1b47e95b4f6bda4b6ce864d0d

    SHA512

    9b6460aca9720a4762a28e78a0e5f3e7358f73383926caf7f4a071e66c79f1032abd131432387f108de27894c147e2f34f01b094b6688826ce78f007d9dafbc5

  • memory/2632-127-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-131-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-139-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-137-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-110-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-135-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-133-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-113-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-18-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-117-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-119-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-121-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-123-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-125-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2632-129-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/4680-115-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4680-111-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4680-107-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5064-14-0x0000000000401000-0x0000000000412000-memory.dmp

    Filesize

    68KB

  • memory/5064-108-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/5064-12-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB