Malicious PDF — malware analysis report

Static analysis result for SHA-256 06d7a49046707739…

MALICIOUS

PDF

43.2 KB Created: 2020-07-09 02:52:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d4acfd11721e5efef358cea94bc911cc SHA-1: a001e918894b8b0584c1f7116c39545af30d1502 SHA-256: 06d7a490467077392982f865b6f8a88a28b1c0200ec1d0aa4434afb7697515b0
154 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains a URL that appears to be a lure for downloading a movie, suggesting a phishing or scam attempt. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting the malicious intent of redirecting users to potentially harmful sites.

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.cc/wb?keyword=dude
    • http://files.aagymnastics.net.au/uploads/1/3/1/8/131871821/5ff8af.pdf
    • http://files.waialaekahalachapel.com/uploads/1/3/1/3/131383549/7853626.pdf
    • http://files.ptediting.com/uploads/1/3/1/8/131871821/cd5e288.pdf
    • http://files.hannahsroorart.com/uploads/1/3/1/8/131871956/kikusogun.pdf
    • http://files.artoftragedy.com/uploads/1/3/1/3/131384145/8608770.pdf
    • http://files.dartendistrict.com/uploads/1/3/1/8/131856381/jarukid.pdf
    • http://files.lisadonaldson.com.au/uploads/1/3/1/6/131606533/nujagivugu_gewowidojor.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://lezinuwal.files.wordpress.com/2020/07/samitaxawetosof.pdf
    • https://kiwuzep760592565.files.wordpress.com/2020/06/18942257740.pdf
    • https://vijebuxiz.files.wordpress.com/2020/06/66677354322.pdf
    • https://momudun.files.wordpress.com/2020/06/91215221132.pdf
    • https://xukudegexe.files.wordpress.com/2020/06/35609387513.pdf
    • https://kejovexa.files.wordpress.com/2020/06/woruxiz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/figarawevig.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mofofuledezenededur.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37394074323.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/denikiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baludugosutagaxoreforodul.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8861538602.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d1d.bin
369a3e87e698f386735970e5549c47d06d1760fcd698a96b507406d8f4b29a3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D1D 4852 bytes
font_01_sfnt_off00007d8d.bin
efb83fd37ab732a35fd88e4a4d352cccb7e20da08f5efa236344baddb426ddf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D8D 10076 bytes

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