Malicious PDF — malware analysis report

Static analysis result for SHA-256 547edac24026811f…

MALICIOUS

PDF

38.4 KB Created: 2020-08-02 03:22:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a306faafaa7bfde2bf52c5e5b321791 SHA-1: c80b3bed1c03a3390b82b5ea29eea2483a3ad8d2 SHA-256: 547edac24026811fdbce7f4ff67c8d88c6ab079481a3a974525cf95e98d87251
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying it as a PDF link farm. One of the primary links, 'https://ttraff.cc/pify?keyword=d%2526+d+player%2527+s+handbook+3.+5', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains URLs that appear to be part of a link farm strategy, aiming to manipulate search engine results or deliver malicious content. The presence of a malicious redirector strongly suggests a phishing or malware delivery 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.cc/pify?keyword=d%2526+d+player%2527+s+handbook+3.+5
    • http://files.mjshilltopfarm.ca/uploads/1/3/1/0/131070001/4116158.pdf
    • http://files.photographybyjohnholliger.net/uploads/1/3/2/8/132814476/180636.pdf
    • http://files.betreatedwell.com/uploads/1/3/1/4/131406075/bilezuv.pdf
    • https://cdn.shopify.com/s/files/1/0434/3663/8360/files/sword_art_online_novel.pdf
    • https://cdn.shopify.com/s/files/1/0434/6763/6898/files/roxowezaxuwu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2104/files/19844841518.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kovogosiwe.pdf
    • https://cdn.shopify.com/s/files/1/0435/9212/2527/files/puxonopujuribifed.pdf
    • https://cdn.shopify.com/s/files/1/0431/9464/6688/files/lubijukepodupenuras.pdf
    • https://cdn.shopify.com/s/files/1/0431/9540/0356/files/13022278667.pdf
    • https://cdn.shopify.com/s/files/1/0431/3242/0264/files/92764178462.pdf
    • https://cdn.shopify.com/s/files/1/0435/6780/8667/files/siratikugojexavamel.pdf
    • https://cdn.shopify.com/s/files/1/0436/9301/5195/files/47766709229.pdf
    • https://cdn.shopify.com/s/files/1/0431/4975/4519/files/pinipenaxumojuvometovado.pdf
    • https://cdn.shopify.com/s/files/1/0429/3882/6918/files/zukifevokuwubaxuzemi.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_off00005af4.bin
4137e011fb50e940388b7a91a31e36f70741d8ce55ef6fbc7fb0314564e06879		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF4 4156 bytes
font_01_sfnt_off00006924.bin
fc137ef410d781222fae685c6a5b922a05ae84869a342acb984853438f2be70a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6924 11052 bytes

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