Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb0c4eff11846226…

MALICIOUS

PDF

37.3 KB Created: 2021-05-25 08:30:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 5dbbc548cad5e38d2222ba54aee86c45 SHA-1: feac2ae5126accf72922de80cb4e7896100ccf8c SHA-256: eb0c4eff118462265a564ecc4ef021727c3ffc51a5f8652b82e701c677dfdb7f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting a "free generator / game hack". The document body also contains similar lures and links, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classification indicate malicious intent, likely to lead the user to a site that may host further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9616

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-tiktok-followers-generator-game-hack In PDF document text
    • https://elearningman1kotacirebon.sch.id/__statics/gudangsoal/files/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningman1kotacirebon.sch.id/__statics/gudangsoal/files/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • https://elearningman1kotacirebon.sch.id/__statics/gudangsoal/files/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://elearningman1kotacirebon.sch.id/__statics/gudangsoal/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • https://elearningman1kotacirebon.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_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
stream_002_off000031a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31A9 29740 bytes
SHA-256: 7c97446ad3450e1d9a3133db55328389cca1692ad0acc58cd94780cab7e27f8e
font_01_sfnt_off000071a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71A4 17924 bytes
SHA-256: 15e81544c7296339f60406a70d440ba472803439c3c01f92585f07e7e66dad8a

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