Malicious PDF — malware analysis report

Static analysis result for SHA-256 efeb7aeb5b62d4ac…

MALICIOUS

PDF

44.4 KB Created: 2021-05-17 08:08:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 69c4dfd68959e9ab8bfa71f7741a81b0 SHA-1: dc1c3b4b5858c8d10f78785c503fcfb2fb9e1798 SHA-256: efeb7aeb5b62d4ac834a4e946b0933293ff2130ed96b007ff2f934c90468c9ce
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Free Roblox Hack Us' and a call-to-action button, directing users to a known malicious redirector URL. This suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely to lead the user to a site that exploits them or downloads a payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0145

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/431946152/free-roblox-hack-us-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003739.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3739 24940 bytes
SHA-256: bbd9728094e110a4f15c269259c257573e777a11490c6a66cc4f01c99e06d47c
font_01_sfnt_off0000707f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707F 8252 bytes
SHA-256: 7ebedd6b182173c8e55836cb0d114b2c4a0ac85c96a51b9f0706c935f8415fea
font_02_sfnt_off00008b93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B93 18532 bytes
SHA-256: 0d34e375d8902d3efa285fd24fab142d003833d4205c7dc9a730d4d831678389

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