Malicious PDF — malware analysis report

Static analysis result for SHA-256 860f5a08b823c16d…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 18:04:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 57c5bfda44050bb33cbb221eae14425c SHA-1: 6bc2aaa5175aa81ad106908460d88c1c6ec4d7c8 SHA-256: 860f5a08b823c16d0dc991998fe9b0f905ad78961adf4db5f184db2b1401c995
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector infrastructure, specifically designed to lure users with promises of game-related cheats and codes. The document body and embedded URLs strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/free-roblox-card-codes-game-hack In PDF document text
    • http://chem.ipb.ac.id/kim/repository/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-london-map-roblox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/how-to-get-a-noclip-roblox-hack-working_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/upload-audio-free-roblox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/site-pour-hacker-les-compte-roblox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/daily-free-spins-coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/wurst-mc_GM479516143.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/robux-free-robux-code-generator_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/cheat-engine-wallhack-roblox_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/free-giftcard-at-robuxcom_GM431946152.pdfIn PDF document text
    • http://chem.ipb.ac.id/kim/repository/groups-on-roblox-that-give-free-robux_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA1 22316 bytes
SHA-256: bdc34f14134074c64ecc4117182d89bb28bf426ce973f81c44162dae9247f401
font_01_sfnt_off00006160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6160 18824 bytes
SHA-256: 5863a25f68c4dee89f1f332a8beb3d1800c88bf377be75211d7322c344e9e5bb

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