Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    21/10/2023, 19:10

General

  • Target

    NEAS.286e189a042ae13f6434632038336880_JC.exe

  • Size

    25KB

  • MD5

    286e189a042ae13f6434632038336880

  • SHA1

    91feb2b9ba6282d3031516375496dd170fa2ccf3

  • SHA256

    e9d7f880c55e4ff1a92ef18202c0ccb100ec1ad78b4bd70bdf35e73194001262

  • SHA512

    718f518e762421a16ff86a31be5a9ff75b2026f5f60a362d439a5b2c1b070821f157c6254186353492956b38112f0aa6896f82ff84fb731383992c623137ac4f

  • SSDEEP

    384:qc0J+vqBoLotA8oPNIrxKRQSv7QrzVVvOytGxboE9K/mKHrjpjvD:8Q3LotOPNSQVwVVxGKEvKHrVD

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.286e189a042ae13f6434632038336880_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.286e189a042ae13f6434632038336880_JC.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2268
    • C:\Windows\spoolsv.exe
      "C:\Windows\spoolsv.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      PID:1700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3029708626\zmstage.exe.orig

    Filesize

    3.7MB

    MD5

    cbbd1b074149896e30d0ef2b80841125

    SHA1

    f8fc72b613e0e947e7f4523a080b09f7aead7fec

    SHA256

    7a4a1d83e9c9b484a715ed9a601f72f7b0c8f9bf7a92f3dabbf629b51a673c6d

    SHA512

    078b0313078fab28fcc02e0b8449786834bdafbabe4b2bd0fa13c65486f61e80bcfbd7ccb7e4b5856529ab2cf8befbfe57c8fdb4153c3f09867b281049fa65a6

  • C:\Users\Admin\AppData\Local\Temp\vsPjotZ8xCVXxBE.exe

    Filesize

    25KB

    MD5

    60bc5dd484b8d4942bec9fde1cf23e05

    SHA1

    910c368aab371886d7671fdee0fd444103c421a9

    SHA256

    3a059326b85cdc725b261adf5593f5f5db4d501af895d075445d1a0ae2038282

    SHA512

    75d13134dc1b92914da378c5393c0c8559998bbd982296e7f19620905a2faf9c57fbc89e0fc44476d6b6e827fa95916b92b66274e87f0561f2920db833a3019b

  • C:\Windows\spoolsv.exe

    Filesize

    25KB

    MD5

    82071fd2379c64429acf376487fcddff

    SHA1

    2da42c7eaa62ecee65757b441c939f12b52228fb

    SHA256

    272bd07fa6c2678fd96a026237a184fceffa65d319f6844bac582aff90ce25d8

    SHA512

    194bdbdf624ec425a095a44116032687c46b3e2370f3c436e2d5516dcc778824ff57fa69edfacb42e5e76e05894eb0a40acf32dcee3b80ba397f823ec82b6adb

  • C:\Windows\spoolsv.exe

    Filesize

    25KB

    MD5

    82071fd2379c64429acf376487fcddff

    SHA1

    2da42c7eaa62ecee65757b441c939f12b52228fb

    SHA256

    272bd07fa6c2678fd96a026237a184fceffa65d319f6844bac582aff90ce25d8

    SHA512

    194bdbdf624ec425a095a44116032687c46b3e2370f3c436e2d5516dcc778824ff57fa69edfacb42e5e76e05894eb0a40acf32dcee3b80ba397f823ec82b6adb