Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c227d7be1146e00…

MALICIOUS

PDF

59.9 KB Created: 2020-08-14 16:53:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 299fba96d26dc2e1f1d877a30de8b8ff SHA-1: 049b84b1bbddb67206faf0c8ae53e617e8a236e1 SHA-256: 1c227d7be1146e00ddce0c953c48b7876c79100161f75db3b06f2c58fd80869b
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.cc'. The document body, though heavily obfuscated, contains the same URL, suggesting a lure for users to click on it. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering via a deceptive link.

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=watch+live+football+apk In PDF document text
    • http://files.marketstreetartspot.com/uploads/1/3/0/8/130873932/3242413.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/1/0433/5376/8095/files/acute_poststreptococcal_glomerulonephritis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0021/6232/files/bolokopukuzofule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8156/3286/files/39975089776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9868/6111/files/nobolananawenojasizegud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1661/8145/files/brche_krzen_erklrung.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7905/7056/files/nulujifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4988/5606/files/24703787770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/etiologi_asma_pada_anak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6849/7823/files/70939787037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3606/3397/files/tadosivipadopogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7395/2158/files/simple_english_grammar_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8664/1304/files/sagujezuse.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 3

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_off0000a06a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA06A 5104 bytes
SHA-256: 7201ef4af18f723082cc2121737166e5aacd8553b4faf670951b4d651dd8dd29
font_01_sfnt_off0000b1cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1CD 2616 bytes
SHA-256: a21bb6a53db44342877d2508a29cfccebc3441c957ff37076f174918630efa44
font_02_sfnt_off0000bd60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD60 11040 bytes
SHA-256: d5eea89b9c88ad23b440306dc2cf6dc683cf26b182549ca6659fa7bdfb2b586a

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