Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f0594ee060cf751…

MALICIOUS

PDF

29.8 KB Created: 2021-07-20 14:14:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ab949ac4155a417e3a961349c167c3f9 SHA-1: 6365ef9548afc510c52e13a035ef237d96f70515 SHA-256: 9f0594ee060cf751355acf3af38bbe24369992252cc6755bf2b34a576bb67564
130 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'free generator / game hack' which links to a known malicious redirector. The document body explicitly contains the malicious URL and a call to action to download the 'game hack'. This suggests the primary goal is to redirect the user to malicious infrastructure, likely to download further malware or engage in phishing.

Machine Learning

  • Nyx PDF Classifier clean score 0.0556

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 http://netcdn.tw/app/479516143/minecraft-bedrock-edition-download-pc-free-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000022ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22AB 21420 bytes
SHA-256: 4d30758eaeba5047633d302b77c4edd55f4f11f7ef1046106521e03f80f2235f
font_01_sfnt_off0000517c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x517C 18828 bytes
SHA-256: 57b97413d46eb8dd02e8163e11e04ebb18f1b46f22b88b993c8d7eb158a8ca98

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