Malicious PDF — malware analysis report

Static analysis result for SHA-256 43be03fde5480e9c…

MALICIOUS

PDF

48.9 KB Created: 2020-08-06 18:48:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 743ce5de214d09fc221d6ad966d8993b SHA-1: c90eddf1faaf78600727d77470eec979cd03e8a3 SHA-256: 43be03fde5480e9cd96bb413bd6d7159aa17127a4c454b0a94f6534cb72c2854
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL, suggesting it is the intended lure. The redirector URL is 'https://ttraff.cc/pify?keyword=acordes+de+cantos+catolicos+de+animacion+pdf', which likely leads to a malicious payload or phishing page.

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=acordes+de+cantos+catolicos+de+animacion+pdf
    • http://files.sfachapterfootball.com/uploads/1/3/2/6/132696063/9311885.pdf
    • http://files.silbertnation.com/uploads/1/3/0/8/130874326/sijafawatikugos-jididetamazi.pdf
    • http://files.pgoody.com/uploads/1/3/1/1/131164542/6126852.pdf
    • https://cdn.shopify.com/s/files/1/0433/0432/1184/files/31048842009.pdf
    • https://cdn.shopify.com/s/files/1/0432/8023/6702/files/54540243828.pdf
    • https://cdn.shopify.com/s/files/1/0431/1482/3844/files/lopodewizowelokoru.pdf
    • https://cdn.shopify.com/s/files/1/0429/7926/2623/files/10505128835.pdf
    • https://cdn.shopify.com/s/files/1/0430/7389/6602/files/experience_psychology_3rd_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/8944/4510/files/wozijo.pdf
    • https://cdn.shopify.com/s/files/1/0438/2123/6386/files/automate_the_boring_stuff_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/pdf_hematology_in_clinical_practice.pdf
    • https://cdn.shopify.com/s/files/1/0438/0616/3104/files/tigenuvi.pdf
    • https://cdn.shopify.com/s/files/1/0433/1978/7675/files/vujenodomopove.pdf
    • https://cdn.shopify.com/s/files/1/0435/6535/1073/files/gabigebajinitikijix.pdf
    • https://cdn.shopify.com/s/files/1/0440/7879/2869/files/lawebesatarezop.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_off00007e43.bin
4a709c8ce394de72c42b2cc426c6003ce80607a11cbbcbf0c4cfad8f12afb982		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E43 5288 bytes
font_01_sfnt_off0000902b.bin
60c1a9995ffe89fd4161ac6599c1d2bb4204d1eafc9b71a9be5ec4e28869053c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x902B 11320 bytes

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