Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f83e4a5f22195a6…

MALICIOUS

PDF

35.6 KB Created: 2021-05-23 23:35:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 44626a26264c6641b611aad21c084f1e SHA-1: d440d27d3ec245d80233ee0cc5034664de1933ee SHA-256: 4f83e4a5f22195a6ca3ce714a5705c471ea80468fdefaf33f3db7a9eb3ab8518
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to known malicious redirector infrastructure at `https://netcdn.xyz/app/835599320/free-followers-on-tiktok-game-hack`. The document body and heuristics indicate a lure for 'free followers' or 'game hacks', suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a malicious workflow designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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 https://netcdn.xyz/app/835599320/free-followers-on-tiktok-game-hack In PDF document text
    • http://killebergsridsport.se/images/how-to-get-free-coins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://killebergsridsport.se/images/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://killebergsridsport.se/images/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://killebergsridsport.se/images/minecraft-windows-10-hacks_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
stream_002_off00002ff3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FF3 26752 bytes
SHA-256: 099bc2dc2f6e0f459a51e778b42f6f00391faa6a9a17c764d29b3db59981d292
font_01_sfnt_off00006ba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA6 17692 bytes
SHA-256: 03131e98da2a54a1a72f5b4aa345640c80e569685032efd5f04fb63d3df01f9e

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