Malicious PDF — malware analysis report

Static analysis result for SHA-256 26e550c0d3334587…

MALICIOUS

PDF

34.0 KB Created: 2021-07-04 16:21:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ec848e16d0b19a759f7f9af715f82ee4 SHA-1: f427c440d6ba4eb72e78629f58b6708ea97eb2e6 SHA-256: 26e550c0d3334587f134ba1ea4b921292a4e982d387662890aeed11c8dc74d6c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free items to entice users to click on links. The primary link directs to known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. The ML classifier strongly indicates maliciousness, and the presence of multiple redirector links reinforces this assessment.

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/406889139/como-hackear-coin-master-game-hack In PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-thanos-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-free-wolf-tail_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-daily-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/adopt-me-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-pushable-noob-models-in-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-roblox-emotes_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-cheats-for-pc_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-execute-a-script-with-admin-roblox-free-admin_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/cheat-engine-roblox-jailbreak-noclip_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/premium-membership-hack-on-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-hack-your-account-back-on-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-robux-no-human-verification-or-survey-or-offers-2021_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/pastebin-roblox-free-robux-real_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/roblox-gang_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/business-cat-roblox-for-free_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_off00003029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3029 22600 bytes
SHA-256: 8718cada64569bba76a488143fd626e924a2b208596e97ed2063940c5c2eca32
font_01_sfnt_off0000627e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627E 18264 bytes
SHA-256: 7b494730981af8d7f2101a902cec1c2dac51ef1d1cb55d4095fe22632eb9d633

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