Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7006c20dd6a2d1f…

MALICIOUS

PDF

38.0 KB Created: 2021-05-15 23:30:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: d9a58109e2cd6b07699b7f21449857c3 SHA-1: 3704d0516cfd37717872a17dfed7459b0777d30b SHA-256: e7006c20dd6a2d1f4b798ef801950eebda16029b52461cf2990714bf26af0f8b
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically advertising a 'free generator / game hack' for Roblox. The presence of these links and the lure of free in-game items strongly suggest a phishing or scam attempt. While 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 could host further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier clean score 0.0334

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/roblox-games-to-play-for-free-game-hack In 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_003_off00003631.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3631 25540 bytes
SHA-256: f0c370093ed576b2d43eae40e449914cb053344d23d8fbafa57e3ed786dac4d5
font_01_sfnt_off00007205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7205 18768 bytes
SHA-256: ab23d1b79a91ba718332cf6cb35a2d4f002a60c6040c891a5ecca9d58b4dd5b1

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