Malicious PDF — malware analysis report

Static analysis result for SHA-256 bce1f52bf5b9552c…

MALICIOUS

PDF

47.0 KB Created: 2020-08-10 18:39:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 768fb017bbde42a85f2e7746564f832d SHA-1: 0043c248809a876945749cd1e51a34ba4079f9ca SHA-256: bce1f52bf5b9552c5a38645b018fbb11da7acfeb6920d06f40566dc34c0c7b56
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=toxocara+canis+pdf, which is likely used to funnel users to a phishing or malware site. The document body, though heavily obfuscated, contains references to this URL and other Shopify links, suggesting a link farm or content-luring tactic. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=toxocara+canis+pdf
    • http://files.deancooperphotography.com/uploads/1/3/0/7/130775958/3415579.pdf
    • http://files.gtc-elite.org/uploads/1/3/2/6/132682570/netefikuvuboz_fifajog_jubakafa.pdf
    • http://suralixu.ackwoven.com/uploads/1/3/0/7/130776257/puluton.pdf
    • http://files.sjvnydesign.com/uploads/1/3/1/4/131455636/2711126.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92313200312.pdf
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/wususuvevifelapulodizosam.pdf
    • https://cdn.shopify.com/s/files/1/0440/1538/6789/files/cv2_show_image.pdf
    • https://cdn.shopify.com/s/files/1/0430/6957/1233/files/58313841847.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/viborovikumowenaben.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/xciii_roman_numerals.pdf
    • https://cdn.shopify.com/s/files/1/0434/9978/2309/files/41866749913.pdf
    • https://cdn.shopify.com/s/files/1/0429/6517/2387/files/fejalolodepebowawi.pdf
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/66154139044.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_off00007b67.bin
972698f2d541b35d709816dbd5669263dfaf8b5bd72ea7b23f7b42885f5e8fd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B67 5136 bytes
font_01_sfnt_off00008ce8.bin
27c8968da47e630a76464854a4e5bbc79190d2ca1ed30225925b22836630a83d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE8 10204 bytes

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