Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f6ab0a7798bf39f…

MALICIOUS

PDF

35.8 KB Created: 2021-05-10 11:10:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6f7f827a58f711e8e564561db5b25a0d SHA-1: 4c5a9739cc09f03d1a8152e425c05393a5568be2 SHA-256: 0f6ab0a7798bf39f4bee7b082139be5a917859c9e92816a1dfda0f2d084e37c3
170 Risk Score

Malware Insights

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

The PDF file contains a lure impersonating Facebook to promote a 'Roblox generator' and directs users to a malicious URL. This URL is identified as a known malicious redirector, indicating a phishing or credential harvesting attempt. The embedded artifacts and PDF structure suggest exploitation of client-side vulnerabilities to achieve execution.

Machine Learning

  • Nyx PDF Classifier clean score 0.0282

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/roblox-imagine-game-hack.
  • 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-imagine-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
font_00_sfnt_off000031d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D5 24328 bytes
SHA-256: 533ead2d02bf406286624b78775c8e18db98e2c0c47e68ba74f9ac681c824701
font_01_sfnt_off00006930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6930 18680 bytes
SHA-256: a55166a074bb895a998fc6ba58d68b2da5fbde3090d9bd557b4756abe288ee64

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