Malicious PDF — malware analysis report

Static analysis result for SHA-256 98d53cb72ede8217…

MALICIOUS

PDF

39.2 KB Created: 2020-08-05 22:51:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 852a74e7fd3d21fae5185e07e8adbfd0 SHA-1: d0dcd41d7185dfcc6738dd33a202de8e485c6f45 SHA-256: 98d53cb72ede8217ab143dc130e7d762c0261d3252d2db078560dce829e42a3c
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which are hosted on Shopify but point to potentially malicious redirectors. The document body and embedded links explicitly mention 'Brokeback Mountain pdf download', suggesting a lure to trick users into clicking through to malicious content. The primary malicious link identified is https://ttraff.cc/pify?keyword=brokeback+mountain+pdf+download, which is a known malicious redirector.

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=brokeback+mountain+pdf+download
    • http://files.thedanceacademymi.com/uploads/1/3/1/4/131452902/zekadesigemisawotati.pdf
    • http://files.circlesisters13.com/uploads/1/3/0/7/130739945/9333827.pdf
    • http://files.rykersonforkittery.org/uploads/1/3/0/9/130969129/595444.pdf
    • http://files.triadmanagementrealty.com/uploads/1/3/0/8/130814682/senolu-xilifunopuz-kufilazovagedu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6504/1311/files/lextran_bus_tracker.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/mikinorewore.pdf
    • https://cdn.shopify.com/s/files/1/0433/7618/1400/files/mazaratawuwopajojuj.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/folekexozoxapuvurinu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/lopolijiziv.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7034/files/79196864616.pdf
    • https://cdn.shopify.com/s/files/1/0437/3427/0117/files/senapigusosamegef.pdf
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/namuvapazusarov.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/80035645790.pdf
    • https://cdn.shopify.com/s/files/1/0431/6423/7992/files/pefezaladuxetexupe.pdf
    • https://cdn.shopify.com/s/files/1/0438/4600/8982/files/homedics_back_massager.pdf
    • https://cdn.shopify.com/s/files/1/0430/1615/9385/files/83516406669.pdf
    • https://cdn.shopify.com/s/files/1/0437/4567/3377/files/imovie_for_dummies.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_off000059f0.bin
12d6e17598763200c5f6d83068be818b80120341e05a1d67813aa50e36ae787d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59F0 5468 bytes
font_01_sfnt_off00006c8a.bin
9a508816ed1d7f08af95b61d546217ec124c7e19e296a28dd3e80df43be46e0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C8A 10376 bytes

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