Malicious PDF — malware analysis report

Static analysis result for SHA-256 1401be5377f4d787…

MALICIOUS

PDF

31.8 KB Created: 2021-06-11 04:32:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5f9ca4014677d9b213fe8b62dcb479df SHA-1: bfd2632e3ddf4a9fba765b4722cb856b33842a77 SHA-256: 1401be5377f4d787410d64afd2b950246c28f8d2d0ad87838d8ecbf4752b9cc4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that is identified as a lure for game hacks and redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'free roblox accounts' and a URL that matches the heuristic findings. This suggests a phishing or scam attempt designed to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 3

  • 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.
  • 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.tw/app/431946152/free-roblox-accounts-with-bc-2021-game-hack In PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/800-robux-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-spins-coin-master-links-no-human-verification_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/assassin-free-admin-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-daily-bonus-hack_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-roblox-characters_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-and-fall-roblox-codes_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-shard-seekers-how-to-get-free-shards_GM431946152.pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f1c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F1C 20463 bytes
SHA-256: 8a8f4472dc32029a803b536629ace3ab0b4bc5292e54df0a7dc7c550256f3df2

Open this report in the interactive analyzer, or submit your own file for analysis.