Malicious PDF — malware analysis report

Static analysis result for SHA-256 76e1d7067f76d4b9…

MALICIOUS

PDF

373.1 KB Created: 2015-08-20 08:03:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-08-25
MD5: c03f45ae45d93c51ca36371234dded94 SHA-1: 32ca4ef4836feef9d53400d13f9add6a4e4aac6d SHA-256: 76e1d7067f76d4b977e418319a6b85f7fdd7559e57485f97846119ac9c1949f5
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a malicious domain, identified by heuristics as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure for downloading software, specifically 'grand theft auto ifruit for windows 7'. This indicates a phishing or social engineering attack aimed at tricking users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

Heuristics 3

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://botcraftman.ru/?lip&keyword=%D0%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+grand+theft+auto+ifruit+%D0%B4%D0%BB%D1%8F+windows+7&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639427_nn3.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639091_skachat_igru_bionicle_heroes_cherez_torrent.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639521_fifa_2015_skachat_torrent_russkaya_versiya_dlya_pc.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000585ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x585AD 10432 bytes
SHA-256: a926242bd047cac2d029637346a16ae0a79aa60582550e7523af004367b64aa9
font_01_sfnt_off0005a36a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A36A 16056 bytes
SHA-256: ae79191c7dd217ba0a4155c0251597b4d842e7d855ee21638cf74f3755c71140

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