Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b36acbeaaa24376…

MALICIOUS

PDF

44.0 KB Created: 2020-07-30 20:49:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4016fe13da611aa1894fd7f263451ac4 SHA-1: ae021f1adb750f75c312a328d5f5eb0dbe0f45f6 SHA-256: 8b36acbeaaa24376d85a721efa6120e06c87c5d4a30afb597f46b182db61ef3e
120 Risk Score

Malware Insights

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

The PDF contains a deceptive lure related to an 'Easyjet boarding pass on phone pdf'. It embeds numerous links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.ru/pify?keyword=easyjet+boarding+pass+on+phone+pdf'. This redirector likely leads to further malicious content or phishing pages. The document also features a large number of external PDF links, suggesting a link farm or SEO poisoning tactic.

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=easyjet+boarding+pass+on+phone+pdf
    • http://files.betsymadison.com/uploads/1/3/1/4/131437299/83b747478c2eae.pdf
    • http://files.courtneyscorner89.com/uploads/1/3/1/8/131872178/nenasomebik_fujagis.pdf
    • http://files.chicagolatexproducts.com/uploads/1/3/1/4/131406356/159578.pdf
    • http://files.mark-it-pink.com/uploads/1/3/1/3/131381677/8375042.pdf
    • http://files.mark-i
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/fobudovegokebakakejegizu.pdf
    • https://cdn.shopify.com/s/files/1/0429/4744/4899/files/80268774495.pdf
    • https://cdn.shopify.com/s/files/1/0430/6927/6313/files/47824487613.pdf
    • https://cdn.shopify.com/s/files/1/0431/0702/5056/files/60415061446.pdf
    • https://cdn.shopify.com/s/files/1/0433/2643/9582/files/desigef.pdf
    • https://cdn.shopify.com/s/files/1/0431/1420/1241/files/48044045266.pdf
    • https://cdn.shopify.com/s/files/1/0432/7541/9812/files/91794342227.pdf
    • https://cdn.shopify.com/s/files/1/0433/4741/1096/files/donabitiruba.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/78010821791.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mitev.pdf
    • https://cdn.shopify.com/s/files/1/0428/5467/8687/files/53299506531.pdf
    • https://cdn.shopify.com/s/files/1/0432/3203/4980/files/gevobo.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_off00006d55.bin
813262eb1555e49384c9980da8bc46a7285ec1fa1521eb4cc74069a590d78f91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D55 5332 bytes
font_01_sfnt_off00007f70.bin
934ee520c866a9d23601c68fb240bf3a963feb4befafdf9648052ed5747de194		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F70 10412 bytes

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