Malicious PDF — malware analysis report

Static analysis result for SHA-256 17034fae0065f360…

MALICIOUS

PDF

53.6 KB Created: 2020-07-30 20:55:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f26d55a46138cb0d0045576cb6ceb89 SHA-1: 4de18ee09b674ceb7d805eedb63c858df45a490f SHA-256: 17034fae0065f3602558c4f0c1f531af7d883db56a3510ff3aaf7e527dc65428
162 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to ttraff.com, which is flagged as malicious. It also hosts a large number of external PDF links, many of which are benign Shopify URLs, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly indicates maliciousness, and the presence of urgency language further supports a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/pify?keyword=certificate+in+quantitative+finance+pdf
    • http://files.hireoptimize.com/uploads/1/3/1/4/131437333/132108279d.pdf
    • http://files.suntreehealingarts.com/uploads/1/3/2/7/132740270/zipawe.pdf
    • http://files.alphagolfopen.org/uploads/1/3/1/1/131163960/ed3bef772221.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/2535/0301/files/nalewexalumigazemevuw.pdf
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/botoputorexoseb.pdf
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/pofakopoxoxem.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/56179197846.pdf
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/80814431392.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5708/files/83231281410.pdf
    • https://cdn.shopify.com/s/files/1/0430/3768/7962/files/mijewafavorak.pdf
    • https://cdn.shopify.com/s/files/1/0430/6314/8695/files/tuviwubuxijoxaru.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xorufolikuvuzinekotawoxo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9569/5266/files/66854353543.pdf
    • https://cdn.shopify.com/s/files/1/0438/5911/6182/files/96799105464.pdf
    • https://cdn.shopify.com/s/files/1/0430/2084/5210/files/64968554879.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_off00009452.bin
579584b2f141cad5c40369e896b2677f461735433e97bede95ffbf0bb8d3aef5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9452 4920 bytes
font_01_sfnt_off0000a51c.bin
7d73630a2e8cea1eec71d62d0a388e7e55408d054911241b2962800f1eb0d247		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA51C 10716 bytes

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