Malicious PDF — malware analysis report

Static analysis result for SHA-256 55002afd48d2f898…

MALICIOUS

PDF

40.8 KB Created: 2020-08-22 04:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74ba61c020f3ddec01ac9ebd27d4e1bf SHA-1: b59181473925b77d3fe2173b8a1528d73bbbd659 SHA-256: 55002afd48d2f8981575059d352676792fd9cc253e23bf5691d00624786796ef
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of these links, https://ttraff.ru/pify?keyword=cain+and+abel+for+windows+xp, is identified as a malicious redirector. The document body also contains this URL, suggesting it is the primary lure. The presence of a link farm and a malicious redirector indicates a phishing or social engineering attempt to direct users to harmful content.

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=cain+and+abel+for+windows+xp
    • http://wofipele.theexpatspeechie.com/uploads/1/3/1/3/131381241/rofisejeben-gogumefovot-zusuzuwolujenu-foromudovu.pdf
    • http://files.bethanyhomestead.co.uk/uploads/1/3/0/7/130775652/440677.pdf
    • http://files.vertheim.com/uploads/1/3/1/3/131379382/f9c6b6a7ad3.pdf
    • http://pupes.blackandbrownarebeautiful.com/uploads/1/3/1/4/131483068/savewixovap_kakabol_riredojew_wowuwiri.pdf
    • http://baluxi.uplinkfitness.com/uploads/1/3/0/8/130813533/gufuxavugow-nabubafuzim-jedunijoke.pdf
    • https://cdn.shopify.com/s/files/1/0440/7328/7830/files/good_will_hunting_movie_hd.pdf
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/plano_metro_y_cercanias_madrid.pdf
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/bosigozu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1697/7559/files/wexexekononunuwibe.pdf
    • https://cdn.shopify.com/s/files/1/0439/5296/3742/files/76765585875.pdf
    • https://cdn.shopify.com/s/files/1/0448/3910/8770/files/93636361590.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/prove_it_excel_test_answers.pdf
    • https://cdn.shopify.com/s/files/1/0453/6093/9163/files/ec_certificate_of_conformity_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0437/6241/7825/files/39867170112.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_off00006132.bin
8ef8bdcc09084983abc7f8f67925adc1ea100c63e9681497c6e604491e96b30e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6132 5240 bytes
font_01_sfnt_off00007328.bin
3522843ac5f75ed97af80b266931aee765fe624c82d598fd077a6ff0c932f580		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7328 10360 bytes

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