Malicious PDF — malware analysis report

Static analysis result for SHA-256 493d8554344b78b3…

MALICIOUS

PDF

40.6 KB Created: 2020-08-23 00:02:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46a0ddbbec9c9ef772336bf6a619a71d SHA-1: 1223572b286aa53701ab6d4d4f97f6c693a77ee7 SHA-256: 493d8554344b78b3c1bd50bce1f8189561ae9cd4ffacd8a4580d5df304d94631
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of these links, https://ttraff.ru/pify?keyword=cabbage+roll+nutrition+information, is identified as a malicious redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or malware distribution. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=cabbage+roll+nutrition+information
    • http://files.crysis-cake-scene.com/uploads/1/3/0/7/130740175/mezuburof.pdf
    • http://files.christopherfoxallphotography.com/uploads/1/3/0/8/130813834/8254547.pdf
    • http://reman.stanford-il.org/uploads/1/3/2/6/132681670/dafogevorasofular.pdf
    • http://vuwomozu.artculturevs.org/uploads/1/3/1/3/131379394/debazemololumobug.pdf
    • http://files.neasedance.com/uploads/1/3/1/4/131406337/aa7e9ed2.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73768917897.pdf
    • https://cdn.shopify.com/s/files/1/0432/8488/9758/files/96525875454.pdf
    • https://cdn.shopify.com/s/files/1/0434/5495/5672/files/67388433419.pdf
    • https://cdn.shopify.com/s/files/1/0433/0972/7912/files/frank_sinatra_discography.pdf
    • https://cdn.shopify.com/s/files/1/0440/2734/7109/files/boris_cyrulnik_un_merveilleux_malheur.pdf
    • https://cdn.shopify.com/s/files/1/0437/1021/8391/files/welomikivikiziki.pdf
    • https://cdn.shopify.com/s/files/1/0429/8270/3257/files/guvisibalokiforazotome.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/introduction_to_entrepreneurship_and_innovation.pdf
    • https://cdn.shopify.com/s/files/1/0452/2590/2240/files/types_of_assessment_instruments.pdf
    • https://cdn.shopify.com/s/files/1/0431/8973/1479/files/jafupizojogi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6635/0998/files/noxigurabifolalo.pdf
    • https://cdn.shopify.com/s/files/1/0431/7777/1162/files/nivuwilutidinaso.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_off000060d4.bin
cc5109172048ffd3537983bff82b4dd7caa2b1bc76d7df6c65103eff6c59d809
pdf-font-stream PDF embedded font (sfnt) at offset 0x60D4 4956 bytes
font_01_sfnt_off0000719b.bin
f532f3837be29e0b496df04a7d52b138c69dbf9899daa71fb1efdbef09326a20
pdf-font-stream PDF embedded font (sfnt) at offset 0x719B 10392 bytes