Malicious PDF — malware analysis report

Static analysis result for SHA-256 0232956ea6a930a0…

MALICIOUS

PDF

48.7 KB Created: 2020-09-08 08:16:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24d12d4a2ea1e1c1aba088da1d29f646 SHA-1: 49c3356eb151fb675254a4fc74ad6ac82aa45ca1 SHA-256: 0232956ea6a930a0e62a35ef05cdce510489288b1359010d6a02b395102feb25
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link disguised as an 'Elementary season 7 episodes guide' that redirects to a malicious URL. The document also contains a large number of links to other PDFs hosted on Shopify, likely part of a link farm to improve SEO for malicious content. The ML classifier strongly indicated maliciousness, and the presence of a redirector link confirms a malicious intent to lead the user to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.link/wix?keyword=elementary+season+7+episodes+guide
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/9526/1348/files/daxugevanatomo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/algebra_2_problems_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/6264/7191/files/bureaucratic_leadership.pdf
    • https://cdn.shopify.com/s/files/1/0457/8983/9516/files/able2extract_professional_9_with_crack_free.pdf
    • https://cdn.shopify.com/s/files/1/0463/0786/8834/files/donkey_kong_64_manual.pdf
    • https://static.usrfiles.com/ugd/d90490_6bc21ba02dd440259c654ed4c6d0a735.pdf
    • https://static.usrfiles.com/ugd/4c3d6a_962650adad24417c971933cf2b104fea.pdf
    • https://static.usrfiles.com/ugd/ab059d_d47168de09124a949ffba8722cc22f81.pdf
    • https://static.usrfiles.com/ugd/1e32c2_538876aa7c074f16946cc701796dd14d.pdf
    • https://static.usrfiles.com/ugd/12dc78_7788159617654eacb6098bb5550d8da8.pdf
    • https://cdn.shopify.com/s/files/1/0430/8851/1130/files/12695278301.pdf
    • https://cdn.shopify.com/s/files/1/0433/8611/0110/files/sejotukij.pdf
    • https://cdn.shopify.com/s/files/1/0436/0539/3571/files/como_hacer_un_rotafolio_casero.pdf
    • https://cdn.shopify.com/s/files/1/0431/4847/6570/files/breville_smart_oven_air_manual.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065ca.bin
c8a1e7a60d2aa3679ee94a9ceaf23551fdaf05323247d7ee8480f269f36452fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65CA 5300 bytes
font_01_sfnt_off000077c6.bin
3b68ce8c349d4ff1b92e97224f11c8275e678cc0c457baccf171a63b4f050204		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77C6 14604 bytes
font_02_sfnt_off0000a5a7.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA5A7 4324 bytes

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