Malicious PDF — malware analysis report

Static analysis result for SHA-256 cafffa1542860e83…

MALICIOUS

PDF

72.6 KB Created: 2020-08-14 20:30:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49775e3e89f1ff379fabf1079434ae44 SHA-1: c9c7b0f2b10b5ee0babb9dd88b34af7116b3bc83 SHA-256: cafffa1542860e830285599ddecd6232c0ef3d5195ecbb9643c0a1c38222fb40
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=definition+of+formaldehyde+gas'. This URL is embedded within the document body, suggesting a social engineering lure to trick users into clicking it. The PDF also contains a link farm heuristic, indicating a large number of outbound links, many of which are hosted on Shopify. The presence of these elements suggests a phishing or malicious redirection 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=definition+of+formaldehyde+gas
    • http://zelilevuf.completecarechiropractictables.com.au/uploads/1/3/1/6/131606289/8017615.pdf
    • https://cdn.shopify.com/s/files/1/0433/7677/1224/files/fometojajopapevaguxexebow.pdf
    • https://cdn.shopify.com/s/files/1/0434/5734/7749/files/zugalokiluzabepugadeporat.pdf
    • https://cdn.shopify.com/s/files/1/0431/6656/4507/files/adverbs_of_place_exercises_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/7027/5237/files/lijizinufar.pdf
    • https://cdn.shopify.com/s/files/1/0429/7120/1695/files/vetitenotezuroti.pdf
    • https://cdn.shopify.com/s/files/1/0433/7201/9877/files/wow_small_furry_paw.pdf
    • https://cdn.shopify.com/s/files/1/0432/6768/6558/files/37357023848.pdf
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/73877767302.pdf
    • https://cdn.shopify.com/s/files/1/0434/1828/8285/files/61470509322.pdf
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/konakamadatusodefogigazez.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_off0000d86a.bin
9d5c33d4504bedcb17c0cf8f27c9d5e466d9a61f9a5054a64d6d61ab2b850518		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD86A 5424 bytes
font_01_sfnt_off0000eab3.bin
da3f5e99472cfefcc64281df0279ae302388e3f906d91e14e32939696684545b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB3 12252 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.