Malicious PDF — malware analysis report

Static analysis result for SHA-256 2065e578defb620f…

MALICIOUS

PDF

49.4 KB Created: 2020-08-23 01:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80c80af2627ac20456ae7d8616934925 SHA-1: d82b8c0d2e4bcd5a16fe9b620c47152a022781ba SHA-256: 2065e578defb620f106121de4384536677fd65d87907136e52fa86dd565299e7
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the URL https://ttraff.ru/pify?keyword=concerning+the+spiritual+in+art+kandinsky+pdf is part of a known malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests the document is designed to host a large number of external links, likely to distribute malicious content or engage in SEO abuse. The document body, though heavily obfuscated, contains references to these URLs.

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=concerning+the+spiritual+in+art+kandinsky+pdf
    • http://files.reach4thestarsstore.com/uploads/1/3/1/6/131606866/kotigopinimixe-kogodinesawato-baxakani.pdf
    • http://files.dimcpphotography.com/uploads/1/3/2/6/132681194/6f6f10a.pdf
    • http://files.4seasonsathletics.com/uploads/1/3/0/7/130739742/074852330ea10a3.pdf
    • https://cdn.shopify.com/s/files/1/0431/5519/4011/files/81936698325.pdf
    • https://cdn.shopify.com/s/files/1/0433/6225/5006/files/68888105962.pdf
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/vafofufidi.pdf
    • https://cdn.shopify.com/s/files/1/0428/4363/5879/files/88411030285.pdf
    • https://cdn.shopify.com/s/files/1/0435/4228/2399/files/ordenar_frases_en_ingles_ejercicios.pdf
    • https://cdn.shopify.com/s/files/1/0433/3908/8027/files/puxajulefinevudu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/69174302155.pdf
    • https://cdn.shopify.com/s/files/1/0431/0227/3703/files/manixivofudemazukibogelap.pdf
    • https://cdn.shopify.com/s/files/1/0429/8860/1503/files/data_mining_jntu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5714/3199/files/22734858642.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/lusalabo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/roblox_gun_scripts.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_off00008336.bin
568355e4213043e7b82d1006ca21d14ae45386d155eac7c1f131072c0aad004b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8336 5488 bytes
font_01_sfnt_off000095e4.bin
ea48375f02c6ea9d8ded3a190d7d25c50292e650839dab87b87bd3ed3e122711		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95E4 10076 bytes

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