Malicious PDF — malware analysis report

Static analysis result for SHA-256 baef78f3352b8d9d…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 16:18:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f9be4d1e18f0aa1df11f310274cec53d SHA-1: a82aa45aaa13bfcbaec8c6481efa92966f1c4ef8 SHA-256: baef78f3352b8d9d7ff3cb4fac23cac100df3b01b0455ea64fb1def4a82953ef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically advertising 'free generator / game hack' services. The document body and heuristics indicate a lure for game-related cheats, likely to lead users to a phishing or malware download site. No scripts were extracted, but the primary attack vector appears to be social engineering via deceptive links.

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/robux-earning-sites-game-hack In PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/como-hackear-coin-master-gratis_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/robux-free-gen_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-to-get-robux-clothes-for-free_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/pubg-300-uc-price-in-india_GM1330123889.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-n-the-co-puter_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack-client-download-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/roblox-pokemon-go-hack_GM431946152.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/coin-master-free-spins-8-14-2021_GM406889139.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • https://elearning-min2jakpus.sch.id/__statics/gudangsoal/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.elearning-min2jakpus.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-root_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_off000030d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D3 22436 bytes
SHA-256: 8d4fda0d5e5e53dc5f49513515561b30615b7b58fdb782a1c08b4fe5ef31e6f8
font_01_sfnt_off00006325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6325 18776 bytes
SHA-256: 2fadfd9a5a9d832f0e7c881f18a3f3e52f0cd87ddfd3a8c3e73cf34e1bc3b59b

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