Malicious PDF — malware analysis report

Static analysis result for SHA-256 d262bd01dde8285a…

MALICIOUS

PDF

47.2 KB Created: 2020-06-05 07:12:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1b3a8e4cf1384ce3d62771cc345cee8 SHA-1: dd5aa1929cf71a6ac7d528dc114591c535d2d625 SHA-256: d262bd01dde8285a0f88ed4c1e44243ff0c48c9a64b24d3f13dde4091d80f6be
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body text and embedded links suggest a lure to download a book, which is a common social engineering tactic. The primary malicious URL identified is https://ttraff.com/wp3?keyword=how+to+look+expensive+book+pdf#how+to+look+expensive+book+pdf, which redirects to other domains hosting PDF files.

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/wp3?keyword=how+to+look+expensive+book+pdf#how+to+look+expensive+book+pdf
    • http://gracezmham.com/uploads/1/3/0/5/130551944/3490706.pdf
    • http://boston2ireland.com/uploads/1/3/1/3/131379253/8439671.pdf
    • http://barringtonroofingservices.com/uploads/1/3/0/7/130738876/239e9faab46d1.pdf
    • http://bringbacklostloverspells.com/uploads/1/3/0/7/130739450/198317.pdf
    • http://padmasitaa.online/uploads/1/3/1/0/131070291/sigeveza_kerusosekal_vasam_vojitavokuvefow.pdf
    • http://boyceelite.org/uploads/1/3/1/6/131607095/duxalowas-zonobaso-logiwire-dafifisotexaxo.pdf
    • http://mrs-taylor.com/uploads/1/3/0/9/130969458/7346e4fd7b10.pdf
    • https://ditilepikap.files.wordpress.com/2020/06/27524098299.pdf
    • https://ximuzasonuzi.files.wordpress.com/2020/06/nepevudegomazaleguwoxexop.pdf
    • https://dodiguwowem.files.wordpress.com/2020/06/vuwepukikoredegopa.pdf
    • https://wojimuretake.files.wordpress.com/2020/06/danarivulu.pdf
    • https://fimaxuxuza417183851.files.wordpress.com/2020/06/79563441770.pdf
    • https://mizarexil.files.wordpress.com/2020/06/rivomibeloxudivefowabi.pdf
    • https://zomitovobi.files.wordpress.com/2020/06/nubolipuxotupowunovojizob.pdf
    • https://bonumazelen.files.wordpress.com/2020/06/nawokezivuzupodew.pdf
    • https://wordpress.com/tos/
    • https://wordpress.com/dmca.html
    • https://wordpress.com/policy.html
    • 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008113.bin
a966735092c005f94d6415e38fe0a8c90bd5671d5a333bc31f33ddb3f425bf42		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8113 14424 bytes

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