Malicious PDF — malware analysis report

Static analysis result for SHA-256 df322a9cdd717968…

MALICIOUS

PDF

39.8 KB Created: 2020-08-15 00:26:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: acd4d86705f471189a8ec46ac2879fdf SHA-1: fa34f375b6d74981745fb59a68bab9f37013cfee SHA-256: df322a9cdd717968b33786c146878131987b4eb7571acc985c2cb38048c71b38
128 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One critical heuristic identified a malicious redirector link to 'ttraff.ru'. The document body, though partially corrupted, contains text related to 'Benevolence funds guidelines church' and a call-to-action phrase, suggesting a social engineering lure. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=benevolence+funds+guidelines+church
    • http://files.rusticchalkdecorshop.com/uploads/1/3/2/6/132681492/bebinotemuvuj_wuketebatavenik_benisewesakopul_gosotav.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9292/files/aiims_ug_syllabus_2020.pdf
    • https://cdn.shopify.com/s/files/1/0433/4796/8149/files/mozivurowi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2619/4330/files/mexebikeb.pdf
    • https://cdn.shopify.com/s/files/1/0436/0319/8116/files/morphology_and_anatomy_of_cockroach.pdf
    • https://cdn.shopify.com/s/files/1/0452/9078/2881/files/pembelahan_dan_blastulasi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/persuasive_essay_rubric.pdf
    • https://cdn.shopify.com/s/files/1/0432/0264/2075/files/49219883294.pdf
    • https://cdn.shopify.com/s/files/1/0427/7351/2359/files/zilele.pdf
    • https://cdn.shopify.com/s/files/1/0438/4676/2656/files/tratamiento_de_bacteriuria_asintomatica_en_embarazo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5794/6519/files/82637776088.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/90306548910.pdf
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/vizolifod.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_off00005db3.bin
9cee8d9c3c93ffc45784bf81af4c2bf3fb599c1260363b47f2fa564ea735dfd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB3 5180 bytes
font_01_sfnt_off00006f59.bin
3d43fb21300f3a7570fa6af506dfae28d74d11e51472fe5a00f1d90f8f416e78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F59 10332 bytes

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