Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffbb9202e6d60fa1…

MALICIOUS

PDF

43.9 KB Created: 2020-08-15 06:39:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bf6c971996566785ec98359af5e23f1 SHA-1: 723e3d91131a62c69d6c4173096a22f1bae6be7a SHA-256: ffbb9202e6d60fa198ac9afb46817d5f5bc50c10a0298441313cdc31509fff30
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, directing users to a URL disguised as a 'Canadian citizenship study guide'. This URL, 'https://ttraff.cc/pify?keyword=canadian+citizenship+study+guide', is designed to lead users to malicious content. The document also contains a large number of embedded links, many pointing to benign Shopify domains, but the primary malicious link is clear. No scripts were extracted from this sample.

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.cc/pify?keyword=canadian+citizenship+study+guide
    • http://fonob.blackfordsoftball.com/uploads/1/3/1/4/131453870/4674730.pdf
    • http://files.fxlda.com/uploads/1/3/0/7/130775134/sifuvejanu_tokuv_sibufuzunoroki_misiwo.pdf
    • http://files.illinoisroute66.info/uploads/1/3/0/7/130776225/7192744.pdf
    • http://files.lonsdale-estate.co.uk/uploads/1/3/1/4/131437977/1d13eaecb2cf.pdf
    • http://files.ortholascolinas.com/uploads/1/3/1/4/131454581/8b3e08f9eeb.pdf
    • https://cdn.shopify.com/s/files/1/0430/0419/9075/files/59679493956.pdf
    • https://cdn.shopify.com/s/files/1/0433/7732/8286/files/30916726273.pdf
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/rokupuzutuvuz.pdf
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/logimaju.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/35179506439.pdf
    • https://cdn.shopify.com/s/files/1/0436/1230/7618/files/15319145385.pdf
    • https://cdn.shopify.com/s/files/1/0429/9273/0275/files/caperucita_roja_cuento_corto.pdf
    • https://cdn.shopify.com/s/files/1/0429/9620/3679/files/66367415761.pdf
    • https://cdn.shopify.com/s/files/1/0434/7042/2180/files/vocal_training_app_android_free.pdf
    • https://cdn.shopify.com/s/files/1/0447/2215/9772/files/romudiri.pdf
    • https://cdn.shopify.com/s/files/1/0435/8828/8675/files/importance_of_computer_application_technology.pdf
    • https://cdn.shopify.com/s/files/1/0430/0580/4698/files/86834919162.pdf
    • https://cdn.shopify.com/s/files/1/0437/9066/3832/files/4795401235.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_off00006084.bin
41889300c1791ca05dc481d91fe1ef06d58cd3f0f4da31ffeef7fdf5fe900595
pdf-font-stream PDF embedded font (sfnt) at offset 0x6084 5152 bytes
font_01_sfnt_off0000721b.bin
eb0f8d8cf8661a3fc6786ec27fad11b2f743ee92c774f0ac8a40eadd87766386
pdf-font-stream PDF embedded font (sfnt) at offset 0x721B 10072 bytes
font_02_sfnt_off0000948e.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x948E 4324 bytes