Analysis

  • max time kernel
    111s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2024 17:03

General

  • Target

    eb47dc8bc43edffb8d36dcd7724b7bbb075d1a96f7f7e888dd271effab5b153fN.exe

  • Size

    4.3MB

  • MD5

    775dca6486337c9e580b41d7b7cc7980

  • SHA1

    68c06814dd984395c73b658b8ee5363967e469f7

  • SHA256

    eb47dc8bc43edffb8d36dcd7724b7bbb075d1a96f7f7e888dd271effab5b153f

  • SHA512

    3db1253cd224640aec0a0241f21db4b72de8ed1bac16aa4f36383f356f51f50dda6c4e06cb4944e9937cb1840a70270bfd84dc5dddd9a5575c3dc624144f847c

  • SSDEEP

    98304:+kLTxn51lvTJZ7V7XEkY4kjRKVKJTdRx55ljt:Z5Rr7V7XrpkjnRnZ

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
  • 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb47dc8bc43edffb8d36dcd7724b7bbb075d1a96f7f7e888dd271effab5b153fN.exe
    "C:\Users\Admin\AppData\Local\Temp\eb47dc8bc43edffb8d36dcd7724b7bbb075d1a96f7f7e888dd271effab5b153fN.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:2720
    • C:\Users\Admin\AppData\Local\Temp\3582-490\eb47dc8bc43edffb8d36dcd7724b7bbb075d1a96f7f7e888dd271effab5b153fN.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\eb47dc8bc43edffb8d36dcd7724b7bbb075d1a96f7f7e888dd271effab5b153fN.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1488
      • C:\Users\Admin\AppData\Local\Temp\is-QSTQB.tmp\eb47dc8bc43edffb8d36dcd7724b7bbb075d1a96f7f7e888dd271effab5b153fN.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-QSTQB.tmp\eb47dc8bc43edffb8d36dcd7724b7bbb075d1a96f7f7e888dd271effab5b153fN.tmp" /SL5="$7025A,3573082,832512,C:\Users\Admin\AppData\Local\Temp\3582-490\eb47dc8bc43edffb8d36dcd7724b7bbb075d1a96f7f7e888dd271effab5b153fN.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3184

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\eb47dc8bc43edffb8d36dcd7724b7bbb075d1a96f7f7e888dd271effab5b153fN.exe

    Filesize

    4.2MB

    MD5

    252ec678f781131a4b0541e16fafdf11

    SHA1

    7b63f74d932039cb23d9efdceef5912efdba867b

    SHA256

    92d892c801e9c4ba850a1902ae7d4d8c6a33a481a0bba02b1e1807e74c118d3e

    SHA512

    74c870475ada88a710f43650aac8cd9766694e8fa2a968c5edd6651994bbdaa722b23eed51643c72dca5ce4a3a19a8bfcfc72496191e30ce30a05f186583aeee

  • C:\Users\Admin\AppData\Local\Temp\is-QSTQB.tmp\eb47dc8bc43edffb8d36dcd7724b7bbb075d1a96f7f7e888dd271effab5b153fN.tmp

    Filesize

    3.0MB

    MD5

    81cd47a8c4f459d0fc276d354bf07e56

    SHA1

    eaa9563080f2ecc2b89f4daead73d8f73e6fbfa8

    SHA256

    8d4e866d9440c8b53186db79747094b7f8c44af57b7ea37a0a2e93689e7afa57

    SHA512

    b043953f35eb77fb26aa85e1aec1daa7f30c97adeec24e25996010186038d49a7de69f367520aabddd981237c49b0e93b5f58cc73a1a895ba3bde43dbdd8d73e

  • memory/1488-14-0x0000000000401000-0x00000000004B7000-memory.dmp

    Filesize

    728KB

  • memory/1488-11-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/1488-104-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/2720-103-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2720-106-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2720-110-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/3184-18-0x0000000000400000-0x000000000071B000-memory.dmp

    Filesize

    3.1MB

  • memory/3184-105-0x0000000000400000-0x000000000071B000-memory.dmp

    Filesize

    3.1MB