Malicious PDF — malware analysis report

Static analysis result for SHA-256 854b9a66f9a5fe8f…

MALICIOUS

PDF

66.8 KB Created: 2020-07-31 07:55:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9651b375bc9b031ec38b7352eee9ddc1 SHA-1: 32f1e5297583b71eecdde38f8283db1673935b8c SHA-256: 854b9a66f9a5fe8f1e2f01c163861d93eabade30793b5d3bbd28181f96be0699
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.cc/pify?keyword=american+heart+association+acls+provider+manual+2020+pdf', is flagged as a known malicious redirector. The document body appears to be garbled, but the presence of keywords like 'American heart association acls provider manual 2020 pdf' suggests a lure to trick users into clicking the malicious 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.cc/pify?keyword=american+heart+association+acls+provider+manual+2020+pdf
    • http://files.mcpa4you.org/uploads/1/3/0/7/130775352/jewekunefokevi.pdf
    • http://files.greaterhudson.org/uploads/1/3/1/4/131438420/mabebefixilemi_nibavoxopelaz.pdf
    • http://files.thestoreinstaunton.com/uploads/1/3/0/7/130775934/d7b1e7dd3c4666c.pdf
    • http://files.osakiselimchurch.com/uploads/1/3/0/8/130813100/fef0fe5.pdf
    • https://cdn.shopify.com/s/files/1/0430/6518/0321/files/90757401133.pdf
    • https://cdn.shopify.com/s/files/1/0432/9878/3382/files/66029118688.pdf
    • https://cdn.shopify.com/s/files/1/0431/0636/9703/files/jilejakedevapoluxarejeva.pdf
    • https://cdn.shopify.com/s/files/1/0437/0412/3557/files/vuritokik.pdf
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/84233577660.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/xufidozosopofoba.pdf
    • https://cdn.shopify.com/s/files/1/0437/1084/1000/files/xikakemenasakijiperaro.pdf
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/33431081314.pdf
    • https://cdn.shopify.com/s/files/1/0438/1127/4914/files/89541349022.pdf
    • https://cdn.shopify.com/s/files/1/0428/9291/8947/files/78376976244.pdf
    • https://cdn.shopify.com/s/files/1/0430/7409/3217/files/81880117663.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/
    • https://cdn.shopify.com/s/files/1

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6ed.bin
827d062486ea9bbc17b41575ec0cd22531b09a73356f4d496c685f4b412c812d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC6ED 5600 bytes
font_01_sfnt_off0000d9bf.bin
980ad1e6644d6ea5fde185811aefd550c4d2ca36df890c6af7e31378669d6b7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BF 10552 bytes

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