Analysis

  • max time kernel
    144s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-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 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 2 IoCs
  • Loads dropped DLL 4 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 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.exe
    "C:\Users\Admin\AppData\Local\Temp\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.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:2080
    • C:\Users\Admin\AppData\Local\Temp\3582-490\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2832
      • C:\Users\Admin\AppData\Local\Temp\is-3D2AK.tmp\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-3D2AK.tmp\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.tmp" /SL5="$50150,471397,121344,C:\Users\Admin\AppData\Local\Temp\3582-490\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2184

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\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.exe

    Filesize

    868KB

    MD5

    bd77a83b835ea389279bd181c09fa396

    SHA1

    9545dde00a165ce756d8ad79daadeda4c181717c

    SHA256

    b0438ab9b87aaa4cc65aba9dbce4a1c33c403ca4b855716aad9f190937237ba6

    SHA512

    499779d7a82cbd90fe58b909a73f4ab1032b76f606be68ef52694270f9d19a5d70ae4b4c7abf3aabba7f195db6004a444d811607169031010e66b2ba6cf00250

  • \Users\Admin\AppData\Local\Temp\is-16NKR.tmp\idp.dll

    Filesize

    228KB

    MD5

    9a83f220bf8ca569e3cfa654539a47a4

    SHA1

    9d1fb7087c12512d5f66d9d75f2fbae8e1196544

    SHA256

    b1c4c9b2dd6a40974fa8789b218b52d967f5ccd1b47e95b4f6bda4b6ce864d0d

    SHA512

    9b6460aca9720a4762a28e78a0e5f3e7358f73383926caf7f4a071e66c79f1032abd131432387f108de27894c147e2f34f01b094b6688826ce78f007d9dafbc5

  • \Users\Admin\AppData\Local\Temp\is-3D2AK.tmp\c61907f4c5a9d7cc0dd47020aa7ddeab5cff40cf37f066c3f5ab7c3ef9b5e64f.tmp

    Filesize

    1.1MB

    MD5

    34acc2bdb45a9c436181426828c4cb49

    SHA1

    5adaa1ac822e6128b8d4b59a54d19901880452ae

    SHA256

    9c81817acd4982632d8c7f1df3898fca1477577738184265d735f49fc5480f07

    SHA512

    134ff4022571efd46f7a62e99b857ebe834e9916c786345908010f9e1fb90be226b740ddee16ae9290fe45c86be7238c4555e422abe66a461d11545e19734beb

  • memory/2080-102-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2080-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2184-104-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-120-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-128-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-100-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-126-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-124-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-106-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-108-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-110-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-112-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-114-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-116-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-118-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-20-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2184-122-0x0000000000400000-0x000000000052E000-memory.dmp

    Filesize

    1.2MB

  • memory/2832-15-0x0000000000401000-0x0000000000412000-memory.dmp

    Filesize

    68KB

  • memory/2832-10-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB

  • memory/2832-99-0x0000000000400000-0x0000000000428000-memory.dmp

    Filesize

    160KB