Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2fb948b5ff47d0d…

MALICIOUS

PDF

46.9 KB Created: 2021-06-04 02:16:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1ef1a3107f6e8633d11d20e96b007a17 SHA-1: c920002dd0575b5785959c53d09f78c56df453f6 SHA-256: a2fb948b5ff47d0d19594f2267890cac7c16fd25e9cec9eb22599181cccc1020
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, specifically advertising game hacks and free spins for popular games. The ML classifier also flagged this document as malicious. The primary attack pattern involves luring the user to click on these links, which likely leads to further malicious content or downloads. No scripts were extracted, but the embedded links are the main indicators of compromise.

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.online/app/406889139/coinmaster-free-spins-link-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/wurst-client-18-9_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/hack-coin-pro-coin-master_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000518f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x518F 24980 bytes
SHA-256: a8d707c3d3bb80788f7574c0124fb62d82f7ea518437172dfec5a5d99d5d5091
font_01_sfnt_off00008aa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA8 2840 bytes
SHA-256: 30dce2b9c1950da345d7fed8f00c38887adfa2f2ddecc31775af2315e819ac37
font_02_sfnt_off0000945b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x945B 18316 bytes
SHA-256: e23e47edf411310e4720a9a584017679d42dc8e6fe25c1f08798108aa15add5d

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