Malicious PDF — malware analysis report

Static analysis result for SHA-256 29a0da64a73bec65…

MALICIOUS

PDF

48.2 KB Created: 2020-08-14 15:18:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b2a7e81a5fc23f5a8ce400e62f4818e SHA-1: d2bb912f277cf8a801cf2ce3464e2e5507d5bd83 SHA-256: 29a0da64a73bec651712fd0bb9907e4ab41e13ee7b32f30d042007321c1d135c
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=android+tablet+2019+budget'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on shopify.com. The document body, though heavily obfuscated, contains references to 'Android tablet 2019 budget' and the malicious URL, suggesting a lure to entice clicks. The primary attack pattern involves redirecting users to potentially malicious content through a deceptive link.

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=android+tablet+2019+budget
    • http://files.lasalleyouth.ca/uploads/1/3/1/4/131483143/2fa3df00a19b910.pdf
    • http://depapo.jpligallery.com/uploads/1/3/0/8/130814328/wuvabuvux.pdf
    • http://wamogiso.zferenovations.com/uploads/1/3/2/7/132710621/57a850d7.pdf
    • http://files.learnwithjoy.net/uploads/1/3/0/8/130814784/29e1a2c134b78c5.pdf
    • http://files.glennwoodhillsretreat.com/uploads/1/3/1/3/131398555/lamokup_gefakogawub.pdf
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/voduzoxoten.pdf
    • https://cdn.shopify.com/s/files/1/0432/9757/0980/files/bollinger_band_trading_system.pdf
    • https://cdn.shopify.com/s/files/1/0437/6847/9893/files/55833681772.pdf
    • https://cdn.shopify.com/s/files/1/0432/6037/9286/files/74867248623.pdf
    • https://cdn.shopify.com/s/files/1/0429/8499/7025/files/68972332875.pdf
    • https://cdn.shopify.com/s/files/1/0429/5763/5743/files/sotawodutezarifowowires.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/fazomejasesokunubuzex.pdf
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/92669968312.pdf
    • https://cdn.shopify.com/s/files/1/0434/3873/5512/files/97602478636.pdf
    • https://cdn.shopify.com/s/files/1/0433/7690/2309/files/website_development_tools.pdf
    • https://cdn.shopify.com/s/files/1/0432/9570/3204/files/xamaduwofanegipedimizagi.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_off00007de8.bin
f406eb7279bf4b31ffbb81918bd6902211334eebdd05770abdca24230e1691da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE8 5428 bytes
font_01_sfnt_off0000906a.bin
d3caae33361f707de1d8ec266d10aaf94efb0523018bb6469f64289dc406978a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x906A 10420 bytes

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