Malicious PDF — malware analysis report

Static analysis result for SHA-256 babaa211a77a38ae…

MALICIOUS

PDF

44.5 KB Created: 2020-07-30 11:06:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bff922a1b2c37bb5652fe18e5c2626c3 SHA-1: e00ed38f82084a87eb6db152935f674eaefb7d77 SHA-256: babaa211a77a38ae82562c532c0998bc7cc1a1ccc8aecc8e700fcfed69c2e7e6
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one heuristic specifically identifying a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Approaches to health education pdf', suggesting a lure. The presence of a link farm and a malicious redirector indicates an attempt to drive traffic to potentially harmful sites.

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.com/pify?keyword=approaches+to+health+education+pdf
    • http://files.pinkpoppyboutiquemo.com/uploads/1/3/0/7/130739646/polomis.pdf
    • http://files.legendsmeltingrecycling.com/uploads/1/3/2/7/132711999/2f13fe5b51cf79e.pdf
    • http://files.dunbarparishchurch.org/uploads/1/3/1/4/131437567/zupaguver.pdf
    • http://files.parkguitars.com/uploads/1/3/0/8/130814124/kasedogogorog_betuwefi_bunepojuja_bozuf.pdf
    • http://files.dunbarparishchurch.org/uploads/1
    • https://cdn.shopify.com/s/files/1/0432/2400/6820/files/fiburedisebewine.pdf
    • https://cdn.shopify.com/s/files/1/0435/5224/3861/files/68618222258.pdf
    • https://cdn.shopify.com/s/files/1/0437/2535/7206/files/jofujuropufizosedupetidi.pdf
    • https://cdn.shopify.com/s/files/1/0439/1727/9400/files/tigizoboxixevolup.pdf
    • https://cdn.shopify.com/s/files/1/0440/5533/0981/files/70238251554.pdf
    • https://cdn.shopify.com/s/files/1/0430/2834/9085/files/fatonepumunegonevedabavon.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jujirufevob.pdf
    • https://cdn.shopify.com/s/files/1/0433/6071/4904/files/puvejonino.pdf
    • https://cdn.shopify.com/s/files/1/0430/2848/0157/files/36154529891.pdf
    • https://cdn.shopify.com/s/files/1/0436/0624/5534/files/bawakejokopatuziwan.pdf
    • https://cdn.shopify.com/s/files/1/0433/5609/4615/files/95285162573.pdf
    • https://cdn.shopify.com/s/files/1/0438/0796/5341/files/37990089889.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_off00007102.bin
b1aeefa66fcb2d2804b2f44e681a2575c14ce20394072f57b8a5ec970e4cf59f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7102 5116 bytes
font_01_sfnt_off00008251.bin
840db1f0f6484ec20786308c113e15ceabb27a3d741b841ff9641ce62e335ac1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8251 10140 bytes

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