Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ce196320d98d737…

MALICIOUS

PDF

35.7 KB Created: 2021-07-04 23:26:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e6b97794370087396b65b38946682273 SHA-1: 93709150b249cdedf45d3cb58cdb1b73dc2605e7 SHA-256: 4ce196320d98d7376f5c4701c715a0840c2ad216dc02cd37ba6da79f2ec6343e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded links, with a primary URL pointing to a 'free robux game hack' lure. This suggests the document is designed to trick users into visiting a potentially malicious website. The ML classifier also strongly indicated maliciousness, supporting the conclusion that this is a phishing or social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/lazyblocks-com-free-robux-game-hack PDF link annotation
    • http://stikespantirapih.ac.id/home/repository/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/hack-roblox-page_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/roblox-how-to-get-infinite-robux2021-no-hack-no-cheats_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/20-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-roblox-http-catchsatoshionline-robuxrobloxg_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/roblox-free-mask-hat_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/how-to-get-a-free-car-in-bloxburg-roblox_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/free-robux-cia_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/coin-master-hack-2021-ios-download_GM406889139.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/fre-department-roblox_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/iron-man-script-roblox-hack_GM431946152.pdfIn PDF document text
    • http://stikespantirapih.ac.id/home/repository/how-to-get-gamepasses-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000346d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x346D 22008 bytes
SHA-256: 80a700959a5440680bb7c18045c8efb892eab21ea4c623fe11a86897eefb96ab
font_01_sfnt_off00006538.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6538 19480 bytes
SHA-256: d59a65bdecbb5c87bb70f1067a6075a20336de1a5b550eccc1c41dc66eb6c340

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