Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee2f435ea392dd1c…

MALICIOUS

PDF

44.8 KB Created: 2020-08-08 03:27:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 519fba909fa349a04460bb35232cb0cd SHA-1: 19190d4a5b7c158a6d66e55e9d4649b0649d8dc9 SHA-256: ee2f435ea392dd1c897ba02747d10549d0fa7c5330e750a699eaa90c684e5807
120 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 Shopify domains, but one critical link directs to a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to funnel users to malicious content. The document body contains garbled text but includes the primary malicious URL.

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.ru/pify?keyword=approximation+pdf+for+po
    • http://files.mshamsi.com/uploads/1/3/0/7/130740193/f82cfb923e0e1.pdf
    • http://files.studentsonsustainability.ca/uploads/1/3/0/7/130740173/1788965.pdf
    • http://files.startingoverabuse.com/uploads/1/3/1/4/131453401/8813427.pdf
    • http://files.artistkevinbowers.com/uploads/1/3/0/7/130775528/zusifatojivokan-fabobodegeb-zofipaxejubam.pdf
    • https://cdn.shopify.com/s/files/1/0438/2726/5693/files/58319650406.pdf
    • https://cdn.shopify.com/s/files/1/0435/2229/3920/files/na_step_working_guide_step_1.pdf
    • https://cdn.shopify.com/s/files/1/0433/9315/5235/files/mafexenokoz.pdf
    • https://cdn.shopify.com/s/files/1/0434/2690/6264/files/sudojumawaxoguriwaxavewap.pdf
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/lowabetoxoxoz.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7796/files/sajado.pdf
    • https://cdn.shopify.com/s/files/1/0432/6447/5299/files/doxasejajesizolagig.pdf
    • https://cdn.shopify.com/s/files/1/0433/0356/7515/files/77345082610.pdf
    • https://cdn.shopify.com/s/files/1/0433/9177/8965/files/79089456810.pdf
    • https://cdn.shopify.com/s/files/1/0434/5489/0149/files/zamomevoxitotigovukogegeg.pdf
    • https://cdn.shopify.com/s/files/1/0437/7831/0295/files/jenonu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/osaka_kyoto_train_map.pdf
    • https://cdn.shopify.com/s/files/1/0432/8321/8588/files/meio_ambiente_e_sustentabilidade_livro.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_off00006723.bin
96f256de80348c11a42742703a92300581b8e534fbeee4622885bede580c0deb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6723 5032 bytes
font_01_sfnt_off0000782a.bin
7f38c7bd3076d5ec567b373f8788658f617417f44aeaffad1c2d563936ecbb0a
pdf-font-stream PDF embedded font (sfnt) at offset 0x782A 2268 bytes
font_02_sfnt_off0000823a.bin
c5ee590c6ea963b6f6993fab51c14afe243c4087308a1813bb5e13005f4b9b2c
pdf-font-stream PDF embedded font (sfnt) at offset 0x823A 10372 bytes