Malicious PDF — malware analysis report

Static analysis result for SHA-256 67817aaa2cc9e671…

MALICIOUS

PDF

46.8 KB Created: 2020-08-07 00:49:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e378d1fdf68b626eb264020127dccc1 SHA-1: dc4a7629068bfc99db4c6d10e202ad715a4103fe SHA-256: 67817aaa2cc9e671895f477a71b6299281900c5c40d8f1e74dc494987cbc8830
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL, suggesting a phishing or scam attempt. The ML_NYX_PDF_MALICIOUS heuristic also strongly indicates malicious intent. The presence of numerous external links, as flagged by PDF_SEO_LINK_FARM, further supports a malicious campaign.

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.com/pify?keyword=quality+assurance+and+quality+management+in+pharmaceutical+industry+pdf
    • http://kanusuzi.holytrinityri.com/uploads/1/3/1/3/131383544/1933889.pdf
    • http://rajitute.artfeltcollaborative.com/uploads/1/3/2/7/132740405/kosaputo-jomop.pdf
    • http://files.thestationsf.com/uploads/1/3/1/8/131856723/624b4c8d369f6c.pdf
    • http://files.bookcellarlwonline.com/uploads/1/3/1/8/131860787/xejapami.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0435/2360/4631/files/revolution_idle_2.pdf
    • https://cdn.shopify.com/s/files/1/0431/4310/2613/files/united_methodist_lectionary.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofusibosaduxigagixuvoma.pdf
    • https://cdn.shopify.com/s/files/1/0428/8898/6787/files/kiwizuzupilinaxatiwim.pdf
    • https://cdn.shopify.com/s/files/1/0436/0152/6948/files/biodata_format_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9812/0096/files/8918834666.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/vukobugonodopir.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8811/files/sugesosukitewinime.pdf
    • https://cdn.shopify.com/s/files/1/0428/0818/0895/files/authorize._net_credit_card_numbers_for_testing.pdf
    • https://cdn.shopify.com/s/files/1/0431/6325/4944/files/zugewuranudokojoxe.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_off0000687b.bin
11e8c989bb5caf159d780252dea24f6c62ee47551a49d9af2d496602cd3fd2fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x687B 5628 bytes
font_01_sfnt_off00007b6c.bin
fa5f395b6b5a8a8be210eb3aa9183da7b2f612ce5ece66fd66e3df6d7e94da1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B6C 10524 bytes
font_02_sfnt_off00009f23.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F23 4324 bytes

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