Malicious PDF — malware analysis report

Static analysis result for SHA-256 a02bbbe66feb74a4…

MALICIOUS

PDF

40.6 KB Created: 2020-08-20 18:13:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c3f34f44a05aee45e77914a8d5fa75f0 SHA-1: e3ce63d87a02524db001646fadb261c23bfa7772 SHA-256: a02bbbe66feb74a4c94208225ddbf11c277f2d8f2ec31309eb4115bd2b255db2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, many of which point to potentially malicious redirectors or unknown domains. The document body text, though heavily obfuscated, contains a URL that appears to be a lure for a game download, which aligns with the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The presence of numerous links suggests a link farm or redirection strategy to obscure the final malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=god+of+war+3+android+phone+game
    • http://zagode.santacatrini.com/uploads/1/3/0/7/130774982/jewododazoxexiw-dasidetu.pdf
    • http://files.casafolklorica.com/uploads/1/3/1/1/131164520/disodaj_vupemafofu.pdf
    • http://kuxajam.fuquafitnessadventures.com/uploads/1/3/0/7/130775519/bukomamar_mixigetedepedax_wusovoxo.pdf
    • http://zedel.gamkariversafarico.com/uploads/1/3/1/4/131438641/f29e7ab30d2cb2.pdf
    • http://files.musicinmclean.org/uploads/1/3/0/8/130873995/doxesarizofegifozif.pdf
    • https://cdn.shopify.com/s/files/1/0429/8542/2997/files/guided_meditation_script_for_creativity.pdf
    • https://cdn.shopify.com/s/files/1/0431/7052/9436/files/saints_row_4_cheat_codes.pdf
    • https://cdn.shopify.com/s/files/1/0432/7620/6238/files/answer_meaning_in_japanese.pdf
    • https://cdn.shopify.com/s/files/1/0446/3771/6643/files/bekikezajigiluno.pdf
    • https://cdn.shopify.com/s/files/1/0433/8089/9989/files/lefofamik.pdf
    • https://cdn.shopify.com/s/files/1/0438/0501/6226/files/90298088628.pdf
    • https://cdn.shopify.com/s/files/1/0434/8428/3033/files/vovoludavelamunupisimexu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/map_work_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0436/4101/2382/files/slide_timeline_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/7520/6294/files/75178579407.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2934473971.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_off0000542a.bin
95db54902098f7c4cd42825b0e16641beaaaaeffc88ed54f75b7a95145f2f1d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x542A 5240 bytes
font_01_sfnt_off000065de.bin
af6556cf824be2c849951fb841bcf5ed2ab4906249ac12de2636782d0acc94a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x65DE 9740 bytes
font_02_sfnt_off0000873d.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x873D 4324 bytes