Malicious PDF — malware analysis report

Static analysis result for SHA-256 9254d4a42bbca802…

MALICIOUS

PDF

39.4 KB Created: 2020-08-27 20:43:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54443ee0d386927129c355c6295f93b1 SHA-1: 2d3f75b2c138093b3dc3eafbe163a5b5b6d9b828 SHA-256: 9254d4a42bbca80284ccf3130fbcd530f595df4ffafba970410849803cf330df
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains multiple embedded links, with one identified as a malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=environment+and+ecology+notes+pdf+for+aktu, which likely serves as a lure to a phishing page or a malware download site. The document's structure suggests it is part of a link farm designed to improve search engine rankings for malicious content.

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.cc/pify?keyword=environment+and+ecology+notes+pdf+for+aktu
    • http://files.pbarcade.com/uploads/1/3/1/4/131437987/6405236.pdf
    • http://files.pegsandsplines.com/uploads/1/3/2/6/132695663/6416620.pdf
    • http://files.ducksoupntreats808.com/uploads/1/3/0/7/130739831/bebe0ccc7b.pdf
    • http://files.sustainablesecrets.com/uploads/1/3/1/4/131483138/muxulemezeg_fejirav_gijala.pdf
    • http://files.benandsidneybakerfamilyreunion.com/uploads/1/3/0/8/130874683/repakina-zuboro.pdf
    • https://cdn.shopify.com/s/files/1/0430/8015/5289/files/bionic_turtle_frm_level_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/5680/7586/files/stream_music_from_pc_to_android_phone.pdf
    • https://cdn.shopify.com/s/files/1/0432/1925/5454/files/69129065487.pdf
    • https://cdn.shopify.com/s/files/1/0427/9818/6663/files/kozipi.pdf
    • https://cdn.shopify.com/s/files/1/0444/6614/3399/files/aarti_durga_mata_ji_ki.pdf
    • https://cdn.shopify.com/s/files/1/0427/4801/8855/files/metemupox.pdf
    • https://cdn.shopify.com/s/files/1/0431/7344/5792/files/79699618480.pdf
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/zesefujiker.pdf
    • https://cdn.shopify.com/s/files/1/0435/8098/1407/files/27535158613.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005947.bin
d48e91100475c54a3f987ec635a7eed62cdea164d3f01ada0eb2989e3caadfd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5947 5656 bytes
font_01_sfnt_off00006c84.bin
a67cf5d427e84001eb01acf9213c964015339dc8288f6995953c278119a369ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C84 10436 bytes

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