Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6a76ea80aa92ed6…

MALICIOUS

PDF

52.9 KB Created: 2020-08-21 13:44:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c10deb9775ee276701a282b5e4de4b2b SHA-1: 6b6eff3dee30ae307572fa23d175d9ee6cfe12b7 SHA-256: a6a76ea80aa92ed69b6c89c90cb775dd96276e33c03a2c7d54ed6a43f9238709
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a lure related to a 'commercial lease contract template philippines' and includes a mass of external PDF links, many hosted on Shopify. One critical heuristic indicates a PDF redirector link to 'https://ttraff.cc/pify?keyword=commercial+lease+contract+template+philippines', suggesting a phishing or redirection attempt. The document body, though heavily obfuscated, contains references to this URL and other PDF links, reinforcing the attack pattern. No scripts were extracted from this sample.

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=commercial+lease+contract+template+philippines In PDF document text
    • http://files.flindersislandrunning.org/uploads/1/3/2/7/132740285/8215592.pdfIn PDF document text
    • http://files.iodenewbrunswick.ca/uploads/1/3/0/7/130776517/xogijurujezumeli.pdfIn PDF document text
    • http://files.thepottingshedcyprus.com/uploads/1/3/0/7/130776022/8385788.pdfIn PDF document text
    • http://salesof.russellvanecek.com/uploads/1/3/0/7/130739430/pelotodozarekeda.pdfIn PDF document text
    • http://kenilebij.artlynchactingcoach.com/uploads/1/3/1/6/131607163/8462312.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8472/4889/files/refexizemotanebedonozafuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/vodev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/hp_officejet_8600_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9444/2133/files/21136813626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6815/3239/files/yo_el_supremo_augusto_roa_bastos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9954/6009/files/tumete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7537/1159/files/52788275059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9186/1412/files/46264266857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/neet_answer_key_2020_by_nta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2010/7428/files/28989322150.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9218 5076 bytes
SHA-256: 5b62bd5693972c9254e2b32f942536e06a885b2d3309027cb9122144a904dcea
font_01_sfnt_off0000a320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA320 10444 bytes
SHA-256: 0feede442ee0f97e56bf6f64a52d2606f54f044713e91e3b4b7456f1f9960bda