Malicious PDF — malware analysis report

Static analysis result for SHA-256 46542c50546e6f0e…

MALICIOUS

PDF

39.0 KB Created: 2020-09-03 10:18:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7246fb84b8d9f245b5497c8aac9b7ace SHA-1: 03c3aeb66f6a903d14cb5a46a79143a41358f5a6 SHA-256: 46542c50546e6f0e2778655bb62f26c6adb00a8469eeff22a369cc6be23b2256
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.me/wix?keyword=bittorrent+free++for+macbook+pro'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, one of which is 'https://cdn.shopify.com/s/files/1/0431/3061/8011/files/rusolerun.pdf'. The document body also contains a call-to-action phrase, suggesting a lure to encourage user interaction with the malicious link.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=bittorrent+free++for+macbook+pro
    • https://cdn.shopify.com/s/files/1/0431/3061/8011/files/rusolerun.pdf
    • https://cdn.shopify.com/s/files/1/0435/3599/0936/files/ejercicios_frutas_y_verduras_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/29412022581.pdf
    • https://cdn.shopify.com/s/files/1/0437/1090/6518/files/catalogue_avon_novembre_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/7612/4821/files/luvipavor.pdf
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/information_architecture_for_the_world_wide_web.pdf
    • https://cdn.shopify.com/s/files/1/0429/5032/8486/files/boss_movie_songs_musicbadshah.pdf
    • https://cdn.shopify.com/s/files/1/0430/2772/6489/files/robot_karel_mochila.pdf
    • https://cdn.shopify.com/s/files/1/0431/6594/1917/files/dazovebolenirejejeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/7023/4519/files/zitisodekenoj.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_off00005ac6.bin
f19ad0c9b554889c1f0bd34a745335e231ceec1c3fac49beb653673c65e80ca8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC6 5204 bytes
font_01_sfnt_off00006c65.bin
6dbdaad3c7f994b6d30eccebb38497291c181ca6fca33ae81c25efda1f975376		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C65 10356 bytes

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