Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee5fa01d4b2cdc5e…

MALICIOUS

PDF

41.2 KB Created: 2020-08-17 11:53:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 989b0feba4da790bb9a07dc19b362643 SHA-1: b2ad158f35fd6a9ca459b6fdb5086ca23a671495 SHA-256: ee5fa01d4b2cdc5ec4fbce1a641784a5525859c572df1565f82ebae59af6733a
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The primary malicious URL identified is https://ttraff.com/pify?keyword=nepali+movie++site, which is likely used to lure users or for SEO manipulation. The document body contains garbled text but also includes the same malicious URL and several benign-looking Shopify URLs, suggesting a deceptive content strategy. No scripts were extracted, but the extensive link farm indicates a probable attempt to distribute further malicious content or engage in click fraud.

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.com/pify?keyword=nepali+movie++site
    • http://files.sandysfashionsformen.com/uploads/1/3/0/8/130814056/jazizafoboroz.pdf
    • http://files.thestatt.com/uploads/1/3/0/8/130814754/bevibosidu_wevebomokon_mitaleri.pdf
    • http://files.nodivotsgolfclub.com/uploads/1/3/1/8/131871952/rixipiberiduvu_guzudur_xupatulaboxu_dawulijuwi.pdf
    • http://files.jwandersonjr.com/uploads/1/3/0/7/130776573/29923aebb2.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/stihl_wood_boss_028_av.pdf
    • https://cdn.shopify.com/s/files/1/0434/9224/5666/files/to_love-_ru_darkness_season_2_uncensored.pdf
    • https://cdn.shopify.com/s/files/1/0439/2471/7723/files/jpg_to_black_and_white_converter.pdf
    • https://cdn.shopify.com/s/files/1/0434/2949/4933/files/moveripep.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mesibilefonupas.pdf
    • https://cdn.shopify.com/s/files/1/0437/0730/2037/files/kusesuwemajeponabes.pdf
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/50744572112.pdf
    • https://cdn.shopify.com/s/files/1/0436/1604/3168/files/16046016461.pdf
    • https://cdn.shopify.com/s/files/1/0437/8358/5953/files/levomawi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4607/5542/files/makatokatadexibuwukime.pdf
    • https://cdn.shopify.com/s/files/1/0436/7102/7865/files/takiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wowivitotorinu.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_off000065e4.bin
6887c9163fd8192175f365f88e88094de8a79b6fd1def3ec819fb4eff71da7d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x65E4 4900 bytes
font_01_sfnt_off00007683.bin
5bfebb996f32929f704a147a486edc06edf86ed4bade7236279531476301d0c7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7683 9800 bytes