Malicious PDF — malware analysis report

Static analysis result for SHA-256 c359e53667bcb986…

MALICIOUS

PDF

38.8 KB Created: 2020-08-14 12:41:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a82a09d0a49f228a31541ecbecbf6661 SHA-1: 2c74a174415cb122913d59aa0f0450eaff4777f8 SHA-256: c359e53667bcb9863c53c296e358b201ec45e59c4c0ad5b22379cc77c0f2278a
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains references to 'Avery labels 5160 excel template' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a large number of external PDF links further indicates a link farm or SEO poisoning attempt to drive traffic to malicious infrastructure.

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.com/pify?keyword=avery+labels+5160+excel+template In PDF document text
    • http://files.newburyporthort.org/uploads/1/3/1/4/131453028/mulejunavoparepugi.pdfIn PDF document text
    • http://files.visualresearchnetwork.co.uk/uploads/1/3/0/9/130969572/8a41c.pdfIn PDF document text
    • http://files.rgcgymnastics.org/uploads/1/3/1/0/131070166/546036824.pdfIn PDF document text
    • http://mavimudol.lodgevintage.com/uploads/1/3/1/3/131384429/wufaxuxobag.pdfIn PDF document text
    • http://files.watsonhill.com/uploads/1/3/0/7/130738975/9362585.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/1/0437/2417/7576/files/38773547187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4041/4615/files/58503696856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7665/7051/files/zapabubedolulorozesudapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5935/5556/files/rite_of_anointing_of_the_sick.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5772/6118/files/dapix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/kivosupavotozefefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6336/2204/files/wikuwatesadojupoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0517/3147/files/save_powerpoint_as.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5930/4858/files/tablet_screen_size.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/10432181674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8316/0999/files/jirijuxewugajugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6512/1695/files/toyota_camry_2002-_2006_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5812/7270/files/facebook_data_analysis_using_r.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_off000056a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56A8 5908 bytes
SHA-256: a4b195a64a11ede8a53450f6fa384a92011c0748dc2dd1772e65c2e13c66d7c6
font_01_sfnt_off00006ac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC3 10304 bytes
SHA-256: ff884d67c51a327ca14ed6205a39f3996c406daa86053c59ace80592cda35d35