Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d10b5de975f7fa2…

MALICIOUS

PDF

44.6 KB Created: 2020-08-31 07:42:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aaa1e8bade5d4fd32c20b0883f063736 SHA-1: 3a181eb674f1b57ef242e38638a0fe900bfa4572 SHA-256: 0d10b5de975f7fa2fd8ff48a50c7013ad40ad43e72a5d9a5a0bd2eea6e592194
154 Risk Score

Malware Insights

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

The PDF contains a link to a malicious redirector, ttraff.com, which is designed to lure users into downloading macOS software. The document body and embedded links suggest a phishing attempt disguised as a software download. The presence of numerous links to Shopify, though marked as benign, indicates a link farm strategy to improve search engine ranking for malicious content.

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/wix?keyword=download+macos+high+sierra+dmg+from+windows
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/8035/8811/files/morotorafi.pdf
    • https://cdn.shopify.com/s/files/1/0434/8562/6520/files/58406204473.pdf
    • https://cdn.shopify.com/s/files/1/0462/7070/9922/files/42550072262.pdf
    • https://cdn.shopify.com/s/files/1/0472/3192/6437/files/17087326363.pdf
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/laboxixadewanemes.pdf
    • https://static.usrfiles.com/ugd/1cc7e8_4527970eba9f41dd8c76c301351c90d3.pdf
    • https://static.usrfiles.com/ugd/b8c837_b47d83bc26854d53be8abf5ebdd4ab79.pdf
    • https://static.usrfiles.com/ugd/3e9e83_88218f4594bc447cac60aa949fea77a3.pdf
    • https://static.usrfiles.com/ugd/455f95_bbe5f91ef86d4567af9c5c367bee6c05.pdf
    • https://static.usrfiles.com/ugd/625844_9d4bc6666bb34670b3dbebc6bdb930fb.pdf
    • https://static.usrfiles.com/ugd/b8c837_3a4ea0cd60014030b103700e0c3e7d7e.pdf
    • https://cdn.shopify.com/s/files/1/0438/0445/9170/files/86742688819.pdf
    • https://cdn.shopify.com/s/files/1/0435/5152/2977/files/astral_cpvc_pipe_fittings_catalogue.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_off00006f85.bin
dbc62046417725ac4573a298a31b6b47ca25ef0eabf48bf7c16f122cedaacc2a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F85 5524 bytes
font_01_sfnt_off00008233.bin
417f6f1564e91f821f1860c290fe729242f0f424fac36a42080cb614364aec5b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8233 10524 bytes