Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ffc0aedf816fd19…

MALICIOUS

PDF

83.7 KB Created: 2020-08-16 01:01:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 37681dcdd36c639b49d9aa172a9afef8 SHA-1: dd6e9ddf95a356926fc8db4f19a322e01b3f589c SHA-256: 3ffc0aedf816fd19228f094ee0350d06ccabcbe83239fbd5451748d66f2d09a2
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, suggesting an attempt to distribute or obscure malicious links. The ML classifier also strongly flagged this PDF as malicious. The embedded URL 'https://ttraff.com/pify?keyword=shoemaker+levy+9+reading+answers' is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site.

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=shoemaker+levy+9+reading+answers In PDF document text
    • http://files.uniquecelebrationspartiesandgifts.com/uploads/1/3/1/4/131406744/302557.pdfIn PDF document text
    • http://pufoxi.longosfinancialmarket.com/uploads/1/3/2/6/132681947/0f464fb.pdfIn PDF document text
    • http://files.kirstenangerbauer.com/uploads/1/3/1/3/131380279/suvizo-bomafumeba-lokinidopididux-lalawevoguga.pdfIn PDF document text
    • http://tovowosuf.staylorhedgesart.com/uploads/1/3/1/6/131607407/4bc8287cce.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/35557186945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7678/0181/files/towetigujolom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7133/9686/files/hdfc_life_insurance_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/tomb_of_annihilation_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8812/1760/files/dice_probability_problems_and_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/576029474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7419/0498/files/saxakurasasevexizun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1169/7814/files/mezapifes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1385/7692/files/7218470606.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE1E 5524 bytes
SHA-256: 6b590c0e9b1c6ee2c86a69285be2d9f58e3dc5e7846acecac0a1b3c2c93ccaa4
font_01_sfnt_off000110c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110C4 10288 bytes
SHA-256: 84c74667bba2188f6c02bd0d213c0dd73d2a42b610669282dde05a49dc2d9bf5
font_02_sfnt_off000133c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133C3 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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