Malicious PDF — malware analysis report

Static analysis result for SHA-256 55081cd7913337e8…

MALICIOUS

PDF

32.2 KB Created: 2021-07-22 02:13:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 35735b246038a0819049c88b1333bce2 SHA-1: 2ec78f252914d69ce56d333243d91a035171fc21 SHA-256: 55081cd7913337e86acef6edaac062e4aeedcaf4d6b09c99bfdee564c46dd9c7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically promoting free game-related items. The document body and embedded links suggest a lure for users seeking free in-game currency or hacks, which is a common social engineering tactic. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/479516143/free-minecraft-codes-game-hack In PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/free-tiktok-likes-without-verification_GM835599320.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • http://sagarirrigation.co.in/wp-content/uploads/fsqm-files/will-minecraft-dungeons-be-free_GM479516143.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_off00002a49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A49 22812 bytes
SHA-256: 31b96c10fe129685c64bd53aa11dbd29bceb3b66ab863c7351b1bce7123404c2
font_01_sfnt_off00005cde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CDE 17884 bytes
SHA-256: ca0982e5699fcbbad1c272e9f6df792bd17b0fef580afa6f1747d77cedc77eee

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