Malicious PDF — malware analysis report

Static analysis result for SHA-256 289585a026864f12…

MALICIOUS

PDF

28.6 KB Created: 2021-07-20 20:52:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1bcf433b42f6aabad54758c72e02f824 SHA-1: 521397720af8e8c6adab347bf77dabe8db965a01 SHA-256: 289585a026864f123daee8e4f2be43e57b8bf21d3c9647bc3e0104cc2f67282d
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically a site offering a 'minecraft-free-trial-game-hack'. The document body also contains a prominent 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' call to action, reinforcing the lure. The primary heuristic firings indicate the PDF is designed to lead users to malicious redirectors, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier clean score 0.0329

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-free-trial-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_off00002145.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2145 21588 bytes
SHA-256: 0b406421e34c19ccf13401739822b26f24d0bc8d5ec2b9eb85cbaca119b19914
font_01_sfnt_off00005073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5073 17644 bytes
SHA-256: eaa999d9fcd0e41c3411a6787ff304b3b9a642a81f97c4ae06503d53e3265cce

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