Malicious PDF — malware analysis report

Static analysis result for SHA-256 72540377da47134b…

MALICIOUS

PDF

43.4 KB Created: 2020-08-22 00:03:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b5b3b704de94872420823275228ccf0 SHA-1: f913d8213273b9640345e7e018eed191e4fc247e SHA-256: 72540377da47134b0f52e941e831f99e856721c2a1767fda59c7067809a40bfc
154 Risk Score

Malware Insights

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

The PDF document contains embedded links and text that strongly suggest a lure for downloading cracked software. The primary malicious URL, 'https://ttraff.cc/pify?keyword=autodesk+maya+2010+64+bit+crack', is identified as a malicious redirector, indicating an attempt to lead the user to harmful content. The presence of numerous other PDF links, many pointing to benign Shopify domains, suggests a link farm or SEO poisoning tactic to increase visibility.

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=autodesk+maya+2010+64+bit+crack
    • http://binalom.vinoetamicis.com/uploads/1/3/1/4/131406821/1425fc6c8d4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/neoliberal_education_in_the_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0437/1742/7352/files/27501510983.pdf
    • https://cdn.shopify.com/s/files/1/0431/9703/8756/files/gutozijow.pdf
    • https://cdn.shopify.com/s/files/1/0435/3789/1480/files/lift_master_opener_model_1260.pdf
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/53873090923.pdf
    • https://cdn.shopify.com/s/files/1/0432/9809/5272/files/mopevumulepowitizubixubu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1503/5291/files/54074771797.pdf
    • https://cdn.shopify.com/s/files/1/0429/3119/1975/files/how_are_you_doing_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/1658/5379/files/vefowofija.pdf
    • https://cdn.shopify.com/s/files/1/0433/9276/2006/files/empirical_labs_distressor_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/4837/0333/files/776383287.pdf
    • https://cdn.shopify.com/s/files/1/0430/0128/2719/files/tv_series_app_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/0610/7552/files/tibomiwodixub.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_off00005e8f.bin
86c792375f0c274faecaec4bb9a6da904f88137df5072de915e90cabbc0fb35d
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8F 5916 bytes
font_01_sfnt_off000072a2.bin
af5d7ec2632ad26ed6662be2c440c93375e40383a17e9ceded8911e18ddf53b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x72A2 14968 bytes