Malicious PDF — malware analysis report

Static analysis result for SHA-256 e03c5785089ad96c…

MALICIOUS

PDF

45.5 KB Created: 2020-08-06 09:49:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3451c803b9453b4ed6a6c3d9e105d402 SHA-1: 20b2bb66606dc71c86edc83fd0d1bd2b3d845c2e SHA-256: e03c5785089ad96ca664720ab82d06c02f78d6cab60871e7c3956bc95bb45048
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF file contains a large number of embedded links, many of which point to external resources. The primary link identified, 'https://ttraff.cc/pify?keyword=le+grand+livre+du+bouddhisme+pdf', is a known malicious redirector. The document body, though heavily obfuscated, contains text related to a book title and the wkhtmltopdf generator, suggesting a lure to download content. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a deliberate attempt to distribute malicious content or phish users.

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/pify?keyword=le+grand+livre+du+bouddhisme+pdf
    • http://files.staytonfol.org/uploads/1/3/2/8/132813998/lesad.pdf
    • http://files.herbalaccents.net/uploads/1/3/1/3/131383467/b3370d06d.pdf
    • http://wikez.elcaminosband.com/uploads/1/3/0/8/130874038/kolipe-wotibosaja-bibufitax-gexej.pdf
    • http://ponizud.newukmusicals.co.uk/uploads/1/3/2/3/132302780/bozekigumi_pawor.pdf
    • http://files.wokingminiaturerailwaysociety.com/uploads/1/3/1/3/131382673/tigojofa.pdf
    • https://cdn.shopify.com/s/files/1/0429/9885/7891/files/84321721230.pdf
    • https://cdn.shopify.com/s/files/1/0438/5862/4672/files/46905785541.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/51267364831.pdf
    • https://cdn.shopify.com/s/files/1/0437/9541/5189/files/12831785512.pdf
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/wibokalowipasopufetaped.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/dumatejugarebi.pdf
    • https://cdn.shopify.com/s/files/1/0439/3933/2251/files/tawisivajaridumes.pdf
    • https://cdn.shopify.com/s/files/1/0431/8560/2721/files/xiwemozaxufoji.pdf
    • https://cdn.shopify.com/s/files/1/0434/1491/3191/files/gezoxotowoxalixugivu.pdf
    • https://cdn.shopify.com/s/files/1/0438/0160/8353/files/tekabefavisagexojenirapo.pdf
    • https://cdn.shopify.com/s/files/1/0435/5706/0769/files/puzibakazixo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2476/0488/files/wolasibogufulewuwiladavaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/5545/6149/files/gugafo.pdf
    • https://cdn.shopify.com/s/files/1/0435/6302/4542/files/93009126742.pdf
    • https://cdn.shopify.com/s/files/1/0432/3006/8898/files/kusafuresezavilof.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/
    • https://cdn.shopify.com/s/files/1/0432/3006/8898

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006df9.bin
fe628595fb7d3744c7d8d2675f4978ec7dbf50672204f9bacc7fd5c00d054103		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF9 5596 bytes
font_01_sfnt_off000080d7.bin
6f2e57e0bb9d91b8dba33a70c8391537c67fa4c429ca91d271093036969282c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80D7 12268 bytes

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