Malicious PDF — malware analysis report

Static analysis result for SHA-256 92eef23651486b35…

MALICIOUS

PDF

32.3 KB Created: 2021-07-05 15:13:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c26dae5d6ca3edc52fec1e687e8eaa7b SHA-1: ba32e1244eee829966144917a48b4e07fbcdec12 SHA-256: 92eef23651486b35db76e02cc85fe44dd5d60b5a9b7e9ba7b46a1315e80a5a0a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs, with a primary one identified as a malicious redirector leading to a 'game hack' lure. The document body and heuristics confirm the intent is to trick users into visiting this malicious URL, likely for further exploitation or malware delivery. No scripts were extracted, but the presence of embedded URLs and the nature of the lure suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/406889139/gold-card-coin-master-free-game-hack In PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-promo-codes-roblox-june-2021_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/town-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/roblox-scp-foundation-model-free_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/btools-hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/best-roblox-outfits-free_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/easy-robux-hack-on-android_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/robux-today-free_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/fisticuffs-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/exploiting-t-shirt-free-roblox_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-get-robux-fast-no-hack_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-hack-roblox-on-mobile_GM431946152.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_off00002b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B11 22168 bytes
SHA-256: a45238d73b0cf041679a83b0163e41b4b8e0d7c146008b0a122f83c7942a41cd
font_01_sfnt_off00005c20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C20 18244 bytes
SHA-256: 05cc7fd6a8f10c4dfba6ff40d9d3f4aef54fa3ecf28edf08d99c23ba0c86cb17

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