Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c67474e353f357e…

MALICIOUS

PDF

38.4 KB Created: 2020-08-16 23:48:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ac40aa91bf53fb24b65778254c4946b9 SHA-1: f2f1245e4e31e4078f4413c773cbafb1343e8636 SHA-256: 1c67474e353f357e9e4cb0a497b4ce34dfabe008fcda889f63c47034312dc03d
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to domains commonly used for SEO link farms. One critical heuristic identified a link to a known malicious redirector at https://ttraff.ru/pify?keyword=bye+bye+video. The document body, though partially corrupted, also contains this URL and references to other PDF files hosted on Shopify domains, suggesting a deceptive lure to drive traffic to malicious infrastructure.

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=bye+bye+video
    • http://files.lccyearbook.com/uploads/1/3/0/7/130740166/7986434.pdf
    • http://mogaku.djccustomcrafts.com/uploads/1/3/1/6/131636664/9676488.pdf
    • http://lomoz.showuplifestyle.com/uploads/1/3/0/8/130814328/zumekukuzaki.pdf
    • http://files.lanternaconsulting.com/uploads/1/3/1/3/131398177/vokot_webafedani.pdf
    • https://cdn.shopify.com/s/files/1/0436/7689/3334/files/gist_family_catering.pdf
    • https://cdn.shopify.com/s/files/1/0440/6122/9208/files/padi_enriched_air_diver_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/36044348240.pdf
    • https://cdn.shopify.com/s/files/1/0437/3712/0933/files/3903117263.pdf
    • https://cdn.shopify.com/s/files/1/0435/0948/1624/files/duxubivoso.pdf
    • https://cdn.shopify.com/s/files/1/0434/4564/9574/files/87996203034.pdf
    • https://cdn.shopify.com/s/files/1/0435/5093/3155/files/97857673647.pdf
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/personal_finance_11th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0440/4209/2694/files/60704974307.pdf
    • https://cdn.shopify.com/s/files/1/0430/1019/5605/files/dokitaleseluvi.pdf
    • https://cdn.shopify.com/s/files/1/0429/0258/5500/files/st_556.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_off00005bba.bin
84ca9eb6ac91079db14c3da3ecf0b3ed79598b9d98e8218480b8ec61c39c5bad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBA 4656 bytes
font_01_sfnt_off00006baf.bin
e9819073d641b605199f580bb99eba755d2d0cf42c0002833cfb7701711fc3ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAF 9852 bytes

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