Analysis

  • max time kernel
    110s
  • max time network
    65s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    02-01-2025 02:17

General

  • Target

    fef5359b9dbcdb93e0173b61d1705b7aefa47f4324473feba12548d7707ef916N.exe

  • Size

    2.1MB

  • MD5

    9b000e0fda09dd3e48827f59e54a4a00

  • SHA1

    06db75128ef0b83444fd50cf852ddb443638d1ca

  • SHA256

    fef5359b9dbcdb93e0173b61d1705b7aefa47f4324473feba12548d7707ef916

  • SHA512

    08701f2535d988f33b9bb5f1e3f763be3b493d116315726ee3449ded09e51b8724e577cd1b686e210050557b3a1d72ae015f748f000d3e4b7932951f17e86474

  • SSDEEP

    49152:SRbdSh7yx6yXCLYc0IyL2tZLTM5D04JM04:SRyE6yXnIi2aJZ4

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 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fef5359b9dbcdb93e0173b61d1705b7aefa47f4324473feba12548d7707ef916N.exe
    "C:\Users\Admin\AppData\Local\Temp\fef5359b9dbcdb93e0173b61d1705b7aefa47f4324473feba12548d7707ef916N.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:2116
    • C:\Users\Admin\AppData\Local\Temp\3582-490\fef5359b9dbcdb93e0173b61d1705b7aefa47f4324473feba12548d7707ef916N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\fef5359b9dbcdb93e0173b61d1705b7aefa47f4324473feba12548d7707ef916N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:2600

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\fef5359b9dbcdb93e0173b61d1705b7aefa47f4324473feba12548d7707ef916N.exe

    Filesize

    2.1MB

    MD5

    17d5540d79a3b7b4b6a341b1a9be976e

    SHA1

    e204742f610a89f2341c4d72bf3439d04c5bc19d

    SHA256

    8bf7ef4a9e345d3da688a20a6f7b69dbe0c611ae2a07a85dc38a6dab3bae00d2

    SHA512

    90117017b2a7123af199f65cbab40028607a618326c49e17075ad30cda90370ac964f4a8b8d11a8b243259d35c07e6d2bf9e61291c1fdbbf5e4eb55ef208b994

  • memory/2116-99-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2116-103-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2600-9-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2600-101-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2600-100-0x0000000000400000-0x000000000061E000-memory.dmp

    Filesize

    2.1MB