Malicious PDF — malware analysis report

Static analysis result for SHA-256 59ea26a241b4e27a…

MALICIOUS

PDF

46.7 KB Created: 2020-08-16 19:00:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a886b733b1e74a7343bdbc6f257ae131 SHA-1: fd495574c7cf9f8f32d68a72cdf530c4994c727b SHA-256: 59ea26a241b4e27af7d50089b81d705cfc1644ad0d2e133520d272cfa73a8f5e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=luxury+goods+market+report'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0431/5208/1053/files/choices_hack_tool_apk.pdf'. The ML classifier also strongly flagged this PDF as malicious. The document body, though partially corrupted, contains the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=luxury+goods+market+report
    • http://files.profesionallashes.com/uploads/1/3/1/8/131859370/3764073.pdf
    • https://cdn.shopify.com/s/files/1/0431/5208/1053/files/choices_hack_tool_apk.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/bring_up_the_bodies.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5113/files/le_bouddhisme_pour_les_nuls_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/xanajazosageruju.pdf
    • https://cdn.shopify.com/s/files/1/0431/7741/0724/files/importance_of_validity_and_reliability_in_research.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86593634255.pdf
    • https://cdn.shopify.com/s/files/1/0431/2111/5298/files/91210146908.pdf
    • https://cdn.shopify.com/s/files/1/0432/6880/0676/files/artificial_insemination_in_cattle.pdf
    • https://cdn.shopify.com/s/files/1/0431/3032/3101/files/2008_volkswagen_passat_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/7344/4767/files/sowuvoxemafanoxe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0783/5303/files/60019689558.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a11.bin
835081f2afa03581d3f0985d18d6d58f4057b52fedad904a88b72a63ddbf0eb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A11 5148 bytes
font_01_sfnt_off00007bac.bin
d2f8b84f10fd3a2154e1e073c60d6ce4ce429e536ef785fe7b22ca6448e3018d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BAC 10652 bytes
font_02_sfnt_off0000a00c.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA00C 4324 bytes

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