Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9d70fe4e5198054…

MALICIOUS

PDF

42.5 KB Created: 2020-08-18 16:04:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af1d0c04f91ba310983f351feb0c3678 SHA-1: 226ce9cf65329c0333001baad375f169711c280d SHA-256: e9d70fe4e5198054b43bc7251cb14e35f91de4d088c28fc0705fc24164d30b1c
150 Risk Score

Malware Insights

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

The PDF document contains a clear lure, referencing 'Bastards 2013 full movie' in its body text, which is highly suspicious. It also contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=bastards+2013+full+movie'. Additionally, it exhibits a PDF link farm heuristic, with numerous embedded links, many pointing to Shopify domains, likely for SEO poisoning or hosting malicious content. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=bastards+2013+full+movie
    • http://files.pbpitch.com/uploads/1/3/1/4/131453904/9782320.pdf
    • http://files.saratoganykennelclub.com/uploads/1/3/1/4/131455141/pamufo_funeg.pdf
    • https://cdn.shopify.com/s/files/1/0437/4937/6161/files/unable_to_edit_in_adobe_acrobat_reader_dc.pdf
    • https://cdn.shopify.com/s/files/1/0432/0005/3408/files/gomenolipolevexi.pdf
    • https://cdn.shopify.com/s/files/1/0437/0956/3034/files/carrom_pool_mod_apk_techstribe.pdf
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/75946844893.pdf
    • https://cdn.shopify.com/s/files/1/0432/7260/1756/files/vexisitis.pdf
    • https://cdn.shopify.com/s/files/1/0438/5921/4496/files/boart_longyear_financial_report.pdf
    • https://cdn.shopify.com/s/files/1/0437/5740/4309/files/how_to_cite_a_article_in_chicago.pdf
    • https://cdn.shopify.com/s/files/1/0428/6152/7206/files/journal_psoriasis_vulgaris.pdf
    • https://cdn.shopify.com/s/files/1/0431/4975/4519/files/83016437887.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/panasonic_kx-_tga402_manual.pdf
    • https://cdn.shopify.com/s/files/1/0443/4483/6252/files/namaz_ka_tarika_download.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_off00006621.bin
7e414709f3ef326992386b227b322f491e18038bf7e54a6aac9588bc2d21b96c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6621 5652 bytes
font_01_sfnt_off0000794b.bin
a07bf8431d3d5d0120fef0663e78225697e85e5aeb29a17252edfe6e44d2066e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x794B 10560 bytes

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