Malicious PDF — malware analysis report

Static analysis result for SHA-256 97663ecb86ba7d8d…

MALICIOUS

PDF

42.5 KB Created: 2020-08-16 23:07:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b15dac67495da1196201791aa0b313e4 SHA-1: ef463b28bf9afc88f6e723daf3a773cdff3c13a9 SHA-256: 97663ecb86ba7d8d582f905ab67b367d0fec9b6096afe148fb765140c7a26e02
150 Risk Score

Malware Insights

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

The PDF document contains a lure related to a Canadian visa lottery application, which is a common social engineering tactic. It embeds numerous links, with a critical heuristic identifying a link to a known malicious redirector at 'ttraff.com'. This redirector likely serves as a gateway to further malicious content or phishing pages. The document body, though heavily obfuscated, contains the same lure text and the malicious URL, reinforcing the phishing attempt.

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=canadian+visa+lottery+application+form+2019%252F+20
    • http://dotebezaj.championproteins.com/uploads/1/3/2/6/132681812/kanuduxap.pdf
    • http://files.drivingaids.com/uploads/1/3/0/8/130874469/zutumixa-nexok.pdf
    • http://files.chocolatefountainprice.com/uploads/1/3/0/8/130815277/jixenis.pdf
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/69685258507.pdf
    • https://cdn.shopify.com/s/files/1/0437/2958/4282/files/78920673230.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/jorugumovagarulu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/48177964882.pdf
    • https://cdn.shopify.com/s/files/1/0430/8900/2645/files/20113484639.pdf
    • https://cdn.shopify.com/s/files/1/0434/1720/6949/files/38724803230.pdf
    • https://cdn.shopify.com/s/files/1/0434/8503/6708/files/calculus_early_transcendentals_2nd_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/16709814825.pdf
    • https://cdn.shopify.com/s/files/1/0431/9199/2484/files/anemometer_digital.pdf
    • https://cdn.shopify.com/s/files/1/0432/6404/9318/files/a_grief_observed_free.pdf
    • https://cdn.shopify.com/s/files/1/0448/5827/8050/files/business_strategy_of_flipkart.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/tatabepubivudo.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_off00006685.bin
7ca21132ba180b814e124989629c5774f9d19d557525a7026c7cd2d47c1bc65c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6685 5884 bytes
font_01_sfnt_off00007a94.bin
26f2fd84bcbd01bf9a459bea690864f5acab94b9d251b0a115c09e40f2d804b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A94 10076 bytes

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