Malicious PDF — malware analysis report

Static analysis result for SHA-256 c28bde555c83a38c…

MALICIOUS

PDF

44.2 KB Created: 2020-08-18 19:43:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abe32c2b293b18858234e965c8e18b7e SHA-1: 047f1cdf1ccd1abdbf5c257f11c192de6877fac7 SHA-256: c28bde555c83a38c85789e18d84ea9abf57b22b2ba73084ee6fb4426bd1d0989
150 Risk Score

Malware Insights

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

The PDF was flagged for containing a malicious redirector link and a large number of external links, indicating a link farm. The primary malicious URL, https://ttraff.ru/pify?keyword=manual+lawn+aerator+roller, is likely used to funnel victims to further malicious sites. The document body contains garbled text but also includes the same malicious URL and several benign Shopify URLs, suggesting a lure document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=manual+lawn+aerator+roller
    • http://wezijivow.kateturnerbestlifeever.com/uploads/1/3/1/1/131164211/4783803.pdf
    • http://files.staceyagdern.com/uploads/1/3/1/3/131398374/5773210.pdf
    • http://zogowamun.maximstevenson.com/uploads/1/3/1/6/131636879/nepiko.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fapodepemiretewuroraga.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jidaxuno.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/epdg_test_app.pdf
    • https://cdn.shopify.com/s/files/1/0434/0216/6435/files/memitilofopovomijijilas.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/77763025840.pdf
    • https://cdn.shopify.com/s/files/1/0446/4757/9811/files/caballo_de_troya_10_mega.pdf
    • https://cdn.shopify.com/s/files/1/0432/6617/9230/files/jobazokamexonemuxagej.pdf
    • https://cdn.shopify.com/s/files/1/0437/3757/9674/files/53805868081.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6727/files/wizujurifunomi.pdf
    • https://cdn.shopify.com/s/files/1/0433/2398/1979/files/arduino_mega_2560_ch340_schematic.pdf
    • https://cdn.shopify.com/s/files/1/0431/9949/6351/files/too_many_items_mod_1._7._10.pdf
    • https://cdn.shopify.com/s/files/1/0432/5670/9288/files/29563768672.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_off000070cf.bin
3c47e84fdd1997334defbf784c78894e34856869d4544a2abe5b5c2044a289f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70CF 4600 bytes
font_01_sfnt_off00008093.bin
70e44bf86ae4e4634c23d092c2ce9f673996fd84e7b57248828d2ab16409f399		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8093 10480 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.