Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f8e8a6580c36fea…

MALICIOUS

PDF

44.4 KB Created: 2020-08-22 02:31:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b982acb53fe135a81ddb4dc69e967326 SHA-1: deb7e2c9be3a8d72543b06ca200b8b1d51a85cd8 SHA-256: 2f8e8a6580c36fea38a7aefc7de1eaaaeea4cfe15be5fd61f0db97ff941bd36c
162 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 'https://ttraff.cc/pify?keyword=python++64+bit+latest+version'. This indicates the document's primary purpose is to redirect users to malicious content, likely disguised as a software download. The presence of a large number of external PDF links, many hosted on Shopify, further supports a link farm or redirection strategy. The ML classifier also strongly flagged this PDF as malicious.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=python++64+bit+latest+version In PDF document text
    • http://files.thelittletreatmentroom.ca/uploads/1/3/1/8/131871462/5958849.pdfIn PDF document text
    • http://files.missionalcommunitycentral.com/uploads/1/3/2/7/132741144/a3db8f.pdfIn PDF document text
    • http://wusabiki.vinesband.info/uploads/1/3/0/7/130776031/lufomediwegen_buwesedamoberi_pizepunedop.pdfIn PDF document text
    • http://zipajali.quantumae.net/uploads/1/3/2/7/132740649/libivor-sotasivipiwa.pdfIn PDF document text
    • http://joxonid.byptrampolines.com/uploads/1/3/1/3/131379730/6427354.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/1/0431/4628/1122/files/biology_download_for_neet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1378/2173/files/verbal_reasoning_test_practice_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jonamov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7829/5450/files/41851984417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3103/6053/files/34167888846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7301/1865/files/64648031474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2239/3244/files/1556901539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bibekejufalakudogaloseja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/vumesererejelatitepapim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1158/files/calendario_serie_d_girone_h_2020_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/34655778455.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E83 5320 bytes
SHA-256: eb846388aa87d03d040493f054dbb162bfbee2316e9104b1dae797b7ea748650
font_01_sfnt_off00008095.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8095 10596 bytes
SHA-256: 745534426d9ba36760456259923070f5c3809dc90bb47cb7c2844bfd050d580e

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