Analysis

  • max time kernel
    72s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2024 18:40

General

  • Target

    18bd6933eeea27089e477268a154213b27d9f3017f49dc61119d3eceb1faecb6N.exe

  • Size

    476KB

  • MD5

    7f1d398e0b5df4af819f995fb9451f50

  • SHA1

    509719d1481204184ef5f2e8b837ad36b7fa8838

  • SHA256

    18bd6933eeea27089e477268a154213b27d9f3017f49dc61119d3eceb1faecb6

  • SHA512

    f0b10b55d62de12600d6a30e018a1613b075367c06325cbb9c96890aa7f3742ca3923e191f8d69e1e3f174937e58d1b13fc02a00ffcea27138f26a7276741436

  • SSDEEP

    3072:sr85Cp0w6N56cvpV+46dC88GDa9GfbDla0SQv5d/AtdYfGB17FTYF+Hg3AN2O7fh:k9W0/v5EafGW+HgIX9

Malware Config

Signatures

  • Detect Neshta payload 6 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 10 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).

  • Program crash 1 IoCs
  • 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
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\18bd6933eeea27089e477268a154213b27d9f3017f49dc61119d3eceb1faecb6N.exe
    "C:\Users\Admin\AppData\Local\Temp\18bd6933eeea27089e477268a154213b27d9f3017f49dc61119d3eceb1faecb6N.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:1688
    • C:\Users\Admin\AppData\Local\Temp\3582-490\18bd6933eeea27089e477268a154213b27d9f3017f49dc61119d3eceb1faecb6N.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\18bd6933eeea27089e477268a154213b27d9f3017f49dc61119d3eceb1faecb6N.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2224
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2224 -s 148
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2192

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\18bd6933eeea27089e477268a154213b27d9f3017f49dc61119d3eceb1faecb6N.exe

    Filesize

    436KB

    MD5

    8b354a4de3d19c1a8d7f85d6a64f76a8

    SHA1

    7002e5e07211e8af8d3ed663eea5fcc56c0a4038

    SHA256

    a1822f7d32005dc56ca361ae752f1e90c512d8fedc8b6a12a1e64df42ba8d843

    SHA512

    220a96afb055a41cb53f763151d7c78423247a7915a8acbd7aaf04d509a69c12b96f3bba35e63451e3a615d9524fc662b6fd331be1f8accf3598d8b5768ddceb

  • memory/1688-93-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1688-94-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1688-95-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1688-96-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/1688-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB