Malicious PDF — malware analysis report

Static analysis result for SHA-256 702d6f2f3a922d8e…

MALICIOUS

PDF

242.3 KB Created: 2020-08-11 09:36:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b90bccbc0c8d3f08f94d67f251d3c98e SHA-1: 8a96ed5c42765171abf6037943416ea4f9440f49 SHA-256: 702d6f2f3a922d8eaede8ed87fe19065084c62f088fd61ef3e9e931c6df6d75f
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, identified as 'ttraff.ru'. This indicates an attempt to lure the user to a harmful site, likely for phishing or to download further malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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.ru/pify?keyword=jspdf+auto+line+break
    • http://nunuwew.samahanfilamheritage.org/uploads/1/3/1/4/131407089/newexibot-tazoroza.pdf
    • http://files.catholicnewmancenterlssu.org/uploads/1/3/0/8/130874458/miwipujowuw.pdf
    • http://zuduvo.wrhs65.net/uploads/1/3/1/6/131606490/pagimiva-fafad-xobulumovige.pdf
    • http://files.steamengineokc.org/uploads/1/3/1/3/131381681/9fd2598cbbb31e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/0733/6867/files/40844214560.pdf
    • https://cdn.shopify.com/s/files/1/0434/0822/8508/files/31604847007.pdf
    • https://cdn.shopify.com/s/files/1/0434/4227/4454/files/36262286920.pdf
    • https://cdn.shopify.com/s/files/1/0430/3562/3578/files/fijexugadalibi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/51189386949.pdf
    • https://cdn.shopify.com/s/files/1/0432/9334/3902/files/docker_registry_letsencrypt.pdf
    • https://cdn.shopify.com/s/files/1/0428/0903/2863/files/40697675862.pdf
    • https://cdn.shopify.com/s/files/1/0435/5335/7985/files/94416705961.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefiwi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5639/7464/files/64065894101.pdf
    • https://cdn.shopify.com/s/files/1/0431/8376/7713/files/10696034445.pdf
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/pitbull_niebezpieczne_kobiety_cda.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17721531589.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_off00037019.bin
c8e8ac0a5f5c21da4dfb6e19735c7b3b477c3ccef0ef52e3483f5850dc68506c
pdf-font-stream PDF embedded font (sfnt) at offset 0x37019 5228 bytes
font_01_sfnt_off000381e4.bin
eb064242a320559aca21d3a8801c5fbdea0c428dc67b30893419312b00ab7e33
pdf-font-stream PDF embedded font (sfnt) at offset 0x381E4 18860 bytes