Malicious PDF — malware analysis report

Static analysis result for SHA-256 60cc805a9b296008…

MALICIOUS

PDF

47.4 KB Created: 2021-06-09 04:14:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 6f10a885fae96e612bbb341ca4eeb873 SHA-1: 49f2eeabfa3f19688c252be644e3c78e50e4391c SHA-256: 60cc805a9b29600880e2346b285e72a727ed71f27a107afa4260746185c2d051
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure is for "Robux" on Roblox, a common theme in phishing and scam campaigns. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at tricking users into visiting potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • 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.
  • 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
  • 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.tw/app/431946152/cheats-to-get-more-robux-on-roblox-game-hack In PDF document text
    • http://lib.untad.ac.id/repository/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-monster_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/pubg-uc-redeem-code-midasbuy_GM1330123889.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f80.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F80 26572 bytes
SHA-256: dab8afebe33399fb4426324ba51ec9a325a270baf579f6cccff5e7c74d28e8a0
font_01_sfnt_off00008b3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3E 2908 bytes
SHA-256: e28d2c57f35643e2026f86c34ac3bb63cba74be3f6c066e81aba6d285e5a121b
font_02_sfnt_off00009538.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9538 18616 bytes
SHA-256: d11a6a91ca99082374c7369feeabdecd94af29626b1bcd0cb9900ced289adbab

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