Malicious PDF — malware analysis report

Static analysis result for SHA-256 901500aca9b09b57…

MALICIOUS

PDF

43.6 KB Created: 2021-06-14 00:41:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6623aa1d500659467a105d45d24b6d29 SHA-1: 58b0382a4c733d00667fd3c72b9037080a492cd7 SHA-256: 901500aca9b09b577b27b5a0f21cab12013981e0f85dafd470bcfc90db17c0bf
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites advertising game hacks and cheats, with a primary URL pointing to a 'roblox-cheat-engine' download. This indicates a lure to download potentially malicious software or engage in scam activities. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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.co/app/431946152/roblox-cheat-engine-dragon-ball-rage-game-hack PDF link annotation
    • https://lib.btkljogja.or.id/repository/coin-master-hacksco_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-hack-roblox-experiment-lab_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-t-shirt-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-stuff-on-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/hack-exploit-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-roblox-accounts-2021-wiki_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-no-survays_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://lib.btkljogja.or.id/repository/moonactive-free-spins-link_GM406889139.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_off00004938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4938 26220 bytes
SHA-256: 3f3a2bd1536c360e8722316b2663af890fa1f04f82eed1fcb6b6e6ebc626457a
font_01_sfnt_off00008684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8684 18860 bytes
SHA-256: 5e8dfccee642ea9219cdfc5c311e8224f370020af5ca5f97e6c726bd920ad551

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