Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a6c578f3a3b48a4…

MALICIOUS

PDF

31.7 KB Created: 2021-07-03 20:43:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: dc9e6487ec32def4326dd100b7b1d08f SHA-1: b6bfc2d75804acdf008f20d397e9f105bdf6047a SHA-256: 1a6c578f3a3b48a4aa0fb3300e9f5bd175167bcf69064fd8f33c0b1fda99b15a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on them by promising free game currency or hacks. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a social engineering tactic to drive traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 3

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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/how-to-get-free-roblox-game-hack In PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/how-to-change-roblox-name-for-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/roblox-free-in-the-computer_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/roblox-cb-ro-hacks-skin_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/is-pokemon-go-free-to-download_GM1094591345.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/coin-master-gold-cards-hack-english_GM406889139.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/how-to-ge-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/mad-city-roblox-hack-pain_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/roblox-forcefield-hack_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana/repository/free-robux-site_GM431946152.pdfIn PDF document text
    • http://perpus.unbi.ac.id/slims7_cendana//repository/coin-master-ids-for-free-spins_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_off00002b04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B04 22172 bytes
SHA-256: f13aa1682a19f8d056c7d4b9650482744bbdc3d470f455247e3f3083d120669f
font_01_sfnt_off00005c29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C29 18920 bytes
SHA-256: 0cab8882f4c0675f5f492e8a84821542f7287f297f1ea8a50a76f0af58ce7d74

Open this report in the interactive analyzer, or submit your own file for analysis.