Malicious PDF — malware analysis report

Static analysis result for SHA-256 f92506fdeae2f5a6…

MALICIOUS

PDF

42.8 KB Created: 2020-08-08 13:03:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5151046d28b19e4b2685d36c6322288f SHA-1: e56b401dd42d676be762ba76cdc945eb463809e4 SHA-256: f92506fdeae2f5a68ef00e8fc228decec53b7fc52d9503150f85fa80b494a02b
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=mastering+lean+six+sigma+advanced+black+belt+concepts+pdf'. The presence of multiple links, many hosted on Shopify, suggests an attempt to obscure the final malicious destination and potentially leverage legitimate platforms for distribution. No scripts were extracted, and the document body contained mostly obfuscated data and 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=mastering+lean+six+sigma+advanced+black+belt+concepts+pdf
    • http://files.448blvd.com/uploads/1/3/1/8/131871740/janawagato_gofedin.pdf
    • http://lojete.eberharddesign.com/uploads/1/3/1/6/131606758/kixumuzebejotul.pdf
    • http://files.tmsdrama.com/uploads/1/3/1/3/131384335/xatakul.pdf
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/rumulimakurekitoviru.pdf
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/22805980916.pdf
    • https://cdn.shopify.com/s/files/1/0431/8268/6370/files/47259817944.pdf
    • https://cdn.shopify.com/s/files/1/0437/1687/0309/files/tebasenomubewu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/new_international_business_english_student_s_book_vk.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdf
    • https://cdn.shopify.com/s/files/1/0431/9641/6161/files/fadilunaludodupetok.pdf
    • https://cdn.shopify.com/s/files/1/0435/4398/6335/files/pomutamorofagibijalem.pdf
    • https://cdn.shopify.com/s/files/1/0434/9142/6469/files/1000_accords_pour_guitare_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/10869437376.pdf
    • https://cdn.shopify.com/s/files/1/0436/1447/0302/files/29990980650.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_off00006527.bin
2ff7d73f82dddf825ef556702ac6299cd355f761dc65d86c260ec5f4a9816c66
pdf-font-stream PDF embedded font (sfnt) at offset 0x6527 5812 bytes
font_01_sfnt_off000078f4.bin
ebd582fa16051cae0670c1bd5632d20c95af998f2d08e7ccfac757fc1014e8f2
pdf-font-stream PDF embedded font (sfnt) at offset 0x78F4 10776 bytes