Malicious PDF — malware analysis report

Static analysis result for SHA-256 f16dc7ef7ef417fa…

MALICIOUS

PDF

99.8 KB Created: 2020-08-22 03:55:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d9e7a79d07f981719ab58bd2adecfef SHA-1: dc5e700d0c15cf800809746194a3bd14b4366d74 SHA-256: f16dc7ef7ef417fab0bc04445a30cc892c5ba3433930052bea41346ccaff1dba
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many hosted on Shopify, forming a link farm. One of these links, 'https://ttraff.ru/pify?keyword=dokkan+sbr+team+guide', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting it's the primary lure. The presence of a link farm and a malicious redirector indicates a phishing or scam attempt.

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=dokkan+sbr+team+guide
    • http://files.jeanetterodriguez.net/uploads/1/3/1/8/131856372/8537928.pdf
    • http://jewaxozax.solillumination.com/uploads/1/3/1/6/131606346/nodus_fiwaxakep_fexafewuzesivib.pdf
    • http://wowufugo.thespeakerstore.co.uk/uploads/1/3/0/8/130874001/5168514.pdf
    • https://cdn.shopify.com/s/files/1/0433/2870/0571/files/paypal_support_email.pdf
    • https://cdn.shopify.com/s/files/1/0437/5068/6874/files/83728820392.pdf
    • https://cdn.shopify.com/s/files/1/0428/7214/4038/files/tugesopero.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87932640634.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/bulutangkis_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0431/1128/4893/files/2735204325.pdf
    • https://cdn.shopify.com/s/files/1/0431/7318/3643/files/21565500609.pdf
    • https://cdn.shopify.com/s/files/1/0437/5671/6186/files/event_ticket_html_template_evey.pdf
    • https://cdn.shopify.com/s/files/1/0433/7087/2995/files/sonomef.pdf
    • https://cdn.shopify.com/s/files/1/0438/1795/9586/files/bigger_leaner_stronger_reddit.pdf
    • https://cdn.shopify.com/s/files/1/0432/2571/0756/files/62325718412.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_off00014bfd.bin
2462e213792833e633a17e79ab3fd99442d8d5e61f8a72c0233dfa847dcce861		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14BFD 5316 bytes
font_01_sfnt_off00015dfa.bin
9431e5d39d755eb180fbe1e06f2f42966dd58d010cdf6432d97366bb644a7602		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15DFA 10540 bytes

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