Malicious PDF — malware analysis report

Static analysis result for SHA-256 83b0a7a14a1c94c6…

MALICIOUS

PDF

34.7 KB Created: 2020-08-14 19:15:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5800ca15141b9d5c9ff65096261005f6 SHA-1: 306ca6335ad1faf8fe8045ec7cfea02595fcbf7e SHA-256: 83b0a7a14a1c94c6d1ca14cbffc7f29e36432ddff67b12541b658753a6731a1d
120 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm or SEO manipulation tactic, embedding a large number of external links. One of these links, 'https://ttraff.com/pify?keyword=badri+cinema+naa+songs', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this malicious URL and other PDF links hosted on Shopify. The primary attack pattern involves luring users to malicious content through a deceptive link farm.

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=badri+cinema+naa+songs
    • http://rolati.thebrickva.com/uploads/1/3/1/4/131453858/2001476.pdf
    • http://files.milescustomracing.com/uploads/1/3/0/8/130874250/33aa313fb452.pdf
    • http://files.vangoldenprinting.com/uploads/1/3/2/7/132740804/punex_rubinodujuwog_zuluxidul_limagumagozexaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/5074/5512/files/58224722419.pdf
    • https://cdn.shopify.com/s/files/1/0434/0236/3045/files/15492521343.pdf
    • https://cdn.shopify.com/s/files/1/0430/7514/1783/files/4624600009.pdf
    • https://cdn.shopify.com/s/files/1/0433/9476/0862/files/noloxiru.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87743453122.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/cabin_crew_safety_training_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/4062/8118/files/60582858084.pdf
    • https://cdn.shopify.com/s/files/1/0432/3459/0878/files/43814387833.pdf
    • https://cdn.shopify.com/s/files/1/0435/8458/5883/files/superantispyware_vs_malwarebytes.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/guxod.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8903/files/50502803874.pdf
    • https://cdn.shopify.com/s/files/1/0430/5541/5445/files/sawegalapidenuwagazeg.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_off0000492d.bin
6370cae3af92b5b399ebfe4456a727999bec73eb744c3d052f66c2fe9f450190		 pdf-font-stream PDF embedded font (sfnt) at offset 0x492D 5276 bytes
font_01_sfnt_off00005afd.bin
78f5ee96b7549a3c591653af27edd6d772f2a79dc74cf881b7a322765ee3cc37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AFD 10276 bytes

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