Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cad1a36e017cb07…

MALICIOUS

PDF

47.0 KB Created: 2021-05-17 13:09:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 7e418813709d7dac4cafa5473de5d3b6 SHA-1: ee8b0fe54cef65751ffcf6a47e44f99a30dcc0a9 SHA-256: 8cad1a36e017cb07e870a0463884cd7283384645cc90f47504004bd49ee283b0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/406889139/coin-master-hack-without-human-verification-2021-game-hack PDF link annotation
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-100-free-spins-link_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-35-13_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/roblox-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/minecraft-the-complete-handbook-collection_GM479516143.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bd6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BD6 25776 bytes
SHA-256: f24caaeb3231bd0f9998fb331775b681c2f980f975a31a9da3577db74fbca557
font_01_sfnt_off000087e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87E4 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off0000930e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x930E 19016 bytes
SHA-256: 9d151cd353acbc916f7f6eb107110adb70143b0a6a415e6841dd022ecfd31ccb

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