Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae127d91091cb774…

MALICIOUS

PDF

32.7 KB Created: 2020-08-13 23:32:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8e952c5954749d955df5986ebff8c87 SHA-1: c1404a4b1216efdb06ad6a4c2a89b5578d74c859 SHA-256: ae127d91091cb7746516b5d6984e979cb8cab8a12f19de806179e20baf3b1de0
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 a redirector service (ttraff.com) that is known to host malicious content. The document body, though partially corrupted, suggests a lure related to a 'Bowers Wilkins Zeppelin Air user manual'. The primary heuristic firing indicates the PDF links to known malicious redirector infrastructure, strongly suggesting a phishing or redirection attack. No scripts were extracted from this sample.

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=bowers+wilkins+zeppelin+air+user+manual
    • http://pezuw.buckeyebulldogclub.com/uploads/1/3/0/9/130969352/43fb7d8.pdf
    • http://files.suemediaproductions.com/uploads/1/3/2/6/132695543/wosinefivududojizaz.pdf
    • http://files.lezcycles.com/uploads/1/3/1/3/131379554/sibeti-jomopoxowaj-fojogiku.pdf
    • https://cdn.shopify.com/s/files/1/0439/0033/8331/files/telaxozuno.pdf
    • https://cdn.shopify.com/s/files/1/0427/9821/9420/files/gokolabevudaweloriviwev.pdf
    • https://cdn.shopify.com/s/files/1/0435/4477/2759/files/96669073070.pdf
    • https://cdn.shopify.com/s/files/1/0433/5045/8520/files/farafejanebipijawazet.pdf
    • https://cdn.shopify.com/s/files/1/0431/5312/9640/files/minecraft_seeds_pe_city.pdf
    • https://cdn.shopify.com/s/files/1/0437/5927/2090/files/82617550743.pdf
    • https://cdn.shopify.com/s/files/1/0434/0583/6444/files/assam_tet_question_paper_assamese_medium.pdf
    • https://cdn.shopify.com/s/files/1/0435/2278/5444/files/80813501129.pdf
    • https://cdn.shopify.com/s/files/1/0434/8208/7588/files/pawiput.pdf
    • https://cdn.shopify.com/s/files/1/0430/4103/0293/files/bidasojuwaxe.pdf
    • https://cdn.shopify.com/s/files/1/0437/6769/3474/files/download_pangu_9._2._1.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_off0000450d.bin
a0af809cdb2ace9ccd9d4cbd302e06f8b6329df275c4740c19c5cf91ea2e8968		 pdf-font-stream PDF embedded font (sfnt) at offset 0x450D 5220 bytes
font_01_sfnt_off000056d1.bin
e7bb71975945370abf845b2816feebdce726fa5cbcfe41919163c04161677b03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56D1 9120 bytes

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