Malicious PDF — malware analysis report

Static analysis result for SHA-256 7faf4ff0ba0eb37e…

MALICIOUS

PDF

64.3 KB Created: 2020-09-29 21:56:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d43442e78270e636d41312187cb0c26 SHA-1: 2f730843b16221f47317290960d26a77b2e7d950 SHA-256: 7faf4ff0ba0eb37e8ddeacfbd0c2bf70348aa50fbf222b557f25a290c0944042
120 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as academic resources, but the primary link redirects to a known malicious infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this redirection. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation or to distribute the malicious payload across multiple domains.

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://gettraff.ru/strik?keyword=absorption+of+amino+acids+pdf
    • http://mesap.drtrevorsmith.com/uploads/1/3/1/1/131163930/a8d2ba.pdf
    • http://files.cakefuntasie.com/uploads/1/3/1/6/131606486/ruvabikatejaf-numonifof-simakid.pdf
    • http://files.ca-radio.com/uploads/1/3/1/0/131070820/lolozelese.pdf
    • http://files.pmawm.com/uploads/1/3/2/6/132682093/jeregepajofe.pdf
    • https://cdn.shopify.com/s/files/1/0428/7833/7187/files/36436645916.pdf
    • https://cdn.shopify.com/s/files/1/0432/8190/7870/files/resume_template_for_first_job_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/5768/4375/files/57617169942.pdf
    • https://cdn.shopify.com/s/files/1/0429/8794/6143/files/ak_47_song_mr_jatt.pdf
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/tooth_brushing_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0428/9721/1551/files/50036836979.pdf
    • https://cdn.shopify.com/s/files/1/0428/8515/2927/files/ropepugorofikixugokev.pdf
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/54599521813.pdf
    • https://cdn.shopify.com/s/files/1/0433/4934/4421/files/retinoblastoma_pathology.pdf
    • https://cdn.shopify.com/s/files/1/0484/4647/2342/files/8322219758.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a8d7.bin
e1a4036e3e15293c3c1dc309c95776f54db68804de9c927ddaaf888f839ac7b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8D7 5396 bytes
font_01_sfnt_off0000bb16.bin
665bb736477cf1a07cedb6571ad9e68469c39c78ecd0edf033c468cd221d86e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB16 10288 bytes
font_02_sfnt_off0000de76.bin
fa612d8c9dad5fc420386685e9432306c519ad4800a09fb601716f8095a448f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE76 16176 bytes

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