Malicious PDF — malware analysis report

Static analysis result for SHA-256 c06e5066acdae9d5…

MALICIOUS

PDF

40.8 KB Created: 2020-08-21 10:43:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6573eb8ca3aed170b939dda9e7571198 SHA-1: 1b36ad5824107d8d90e07cc8350c2a3f271d1b33 SHA-256: c06e5066acdae9d5d18676c6fc3cfbf96cc05f0b08b88a6889d7d55438c1ffcc
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'https://ttraff.ru/pify?keyword=best+manual+meat+mincer+uk'. Another critical heuristic, PDF_SEO_LINK_FARM, indicates a mass of external links, with the first being 'https://cdn.shopify.com/s/files/1/0430/8336/6551/files/taxege.pdf'. The document body, though heavily obfuscated, contains text related to product search terms and the URL 'https://ttraff.ru/pify?keyword=best+manual+meat+mincer+uk', suggesting a lure to a malicious site.

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=best+manual+meat+mincer+uk
    • http://files.pizarroscenicdesign.com/uploads/1/3/2/6/132682790/1a3878aed.pdf
    • http://files.armstrongresponds.com/uploads/1/3/0/7/130740062/powolato.pdf
    • https://cdn.shopify.com/s/files/1/0430/8336/6551/files/taxege.pdf
    • https://cdn.shopify.com/s/files/1/0429/2483/4982/files/bhagavad_gita_in_marathi_audio_free.pdf
    • https://cdn.shopify.com/s/files/1/0448/2108/6368/files/adverse_reaction_to_metformin_icd_10.pdf
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/69359026744.pdf
    • https://cdn.shopify.com/s/files/1/0435/9569/4239/files/wisoxezerapidoginew.pdf
    • https://cdn.shopify.com/s/files/1/0436/2957/6352/files/cardiac_catheterization_handbook_free.pdf
    • https://cdn.shopify.com/s/files/1/0435/1898/4352/files/casa_luis_barragan_planos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51191810805.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/catfish_farming_in_the_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0431/6695/7722/files/4742219640.pdf
    • https://cdn.shopify.com/s/files/1/0429/3417/3859/files/39000012771.pdf
    • https://cdn.shopify.com/s/files/1/0429/2149/2643/files/68223045597.pdf
    • https://cdn.shopify.com/s/files/1/0429/9702/2871/files/47913446235.pdf
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/tigeviloterawafapiguteke.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_off000063c0.bin
e0b4414e3f6ca807f9ca6c2b41dda6e1de9123960000f0730f5562911ba51dd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x63C0 5056 bytes
font_01_sfnt_off000074cf.bin
a81be884b42fb942f01e96cbcda70977b57cfc02b5d8105caa654341183ab58a
pdf-font-stream PDF embedded font (sfnt) at offset 0x74CF 9868 bytes