Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a7d3157b8a23557…

MALICIOUS

PDF

36.3 KB Created: 2021-05-21 05:40:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bb2613221979e57ae7a66803369ff757 SHA-1: d5c97bd0c47dab87b0057f2c96b6926eb61e8e6d SHA-256: 6a7d3157b8a23557df72e2af30a286944649bcda94c7ba0c2f00db8b87e3c5c2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free generators' or 'game hacks'. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the embedded links and the nature of the lures suggest an attempt to trick users into downloading further malicious content or visiting compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/479516143/free-minecraft-coloring-pages-game-hack In PDF document text
    • https://e-learning.mtsn2kotabandung.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn2kotabandung.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn2kotabandung.sch.id/__statics/gudangsoal/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn2kotabandung.sch.id/__statics/gudangsoal/files/robux-converter_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn2kotabandung.sch.id/__statics/gudangsoal/files/free-coins-on-coin-master-generator_GM406889139.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_off000035f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35F5 24184 bytes
SHA-256: 53d1324d6f18bf2ab9be133b07f3e2892685a38c318c987e2d688f3c26b858be
font_01_sfnt_off00006cc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC3 18224 bytes
SHA-256: 6e343a052bd34aead68fa90857bbbafbb2ebf9a3dc2705f241561e157218897d

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