Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d4c26b1673533a7…

MALICIOUS

PDF

40.4 KB Created: 2020-08-30 18:07:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98afc2a3cc72801e353a033e78f1eb13 SHA-1: 30a00b5126b483c36445f48b872410a7772415e7 SHA-256: 9d4c26b1673533a7c0cc12d1aa373d5af9ba14500c31cb4b310e4721cf5a8089
150 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to a URL related to 'full movie download mp4 bollywood'. This URL is embedded within the document body and is designed to lure users to malicious infrastructure. The file also exhibits characteristics of a PDF link farm, further supporting its malicious intent.

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/wix?keyword=full+movie+download+mp4+bollywood
    • https://static.usrfiles.com/ugd/b8c837_6aae4917859e4932aac2d8b100caaea6.pdf
    • https://static.usrfiles.com/ugd/2e79a6_cf86ca49f53541588b1e378cf4017b95.pdf
    • https://static.usrfiles.com/ugd/7c3584_93ccc287cec7439895511be4855c5d08.pdf
    • https://cdn.shopify.com/s/files/1/0433/4416/7064/files/strengthsfinder_domains_of_leadership.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9284441163.pdf?v=1594212706
    • https://cdn.shopify.com/s/files/1/0433/7011/9318/files/android_oreo_minimum_requirements.pdf
    • https://cdn.shopify.com/s/files/1/0457/6487/0300/files/basic_scone_recipe.pdf
    • https://cdn.shopify.com/s/files/1/0440/7109/2376/files/19559037439.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a12b8c2a6b14c78b162a8183953af0f.pdf
    • https://static.usrfiles.com/ugd/b8c837_046d2c9d16a34fbcb56d00bdd4bf9f2f.pdf
    • https://cdn.shopify.com/s/files/1/0434/3123/1637/files/vaxuzakafumir.pdf
    • https://cdn.shopify.com/s/files/1/0433/2408/0282/files/aberdeen_small_cap_fund_fact_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/2412/9946/files/gifimirilowuvafixajijad.pdf
    • https://cdn.shopify.com/s/files/1/0429/3784/3871/files/rogejesasa.pdf
    • https://cdn.shopify.com/s/files/1/0428/2207/4534/files/dixomulalazaripa.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_off00005f74.bin
c1a6aefa58c659eef31a514464c4519397749634bd0b689a84746f38beaa5a56
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F74 5268 bytes
font_01_sfnt_off0000716e.bin
b8150355f2f12e9cff9207446c42d3ac2461124230d4de2500203904dd32da9e
pdf-font-stream PDF embedded font (sfnt) at offset 0x716E 10540 bytes