Malicious PDF — malware analysis report

Static analysis result for SHA-256 65b737bfe395db81…

MALICIOUS

PDF

34.1 KB Created: 2020-08-28 02:25:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b66e8e31a6d0d496561cf4ed07da2308 SHA-1: 9d0c5f93c7f02662bedec664e12718aaaf5481d2 SHA-256: 65b737bfe395db81bc9bdb3e88ee0c8fafbdcd6c1abc65c53221f37f95ef94ab
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a redirector link, indicating a phishing or scam attempt disguised as a helpful resource. The primary malicious link, 'https://ttraff.com/pify?keyword=secuencia+de+imagenes+para+crear+cuentos+cortos', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to images and story creation, likely serving as a lure.

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=secuencia+de+imagenes+para+crear+cuentos+cortos In PDF document text
    • http://vipowoxoz.pioneervalleykennelclub.com/uploads/1/3/2/3/132302842/zonadonan-kotemafidu-komolibur.pdfIn PDF document text
    • http://files.deanmelbourne.com/uploads/1/3/1/8/131856108/599994081.pdfIn PDF document text
    • http://files.hickmanfootball.com/uploads/1/3/0/7/130776788/kamubumul-dobozokowobiz.pdfIn PDF document text
    • http://files.ninareistad.com/uploads/1/3/1/4/131438036/133ed0ff.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/1/0429/5376/9126/files/juniper_bonsai_tree_care_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5205/6227/files/vabibedewomudoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/kinulazenew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3518/1734/files/ffxiv_archaic_enchanted_ink.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1137/4230/files/bakajulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6408/2073/files/chrome_for_64_bit_os.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5895/3369/files/16018335768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/2695/8747/files/95955155271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8299/8170/files/lurebulixiripo.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_off0000465f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x465F 5464 bytes
SHA-256: adaa1e6326ccc4aa43605381af646434f1c34f1610f22afa446a062594abc88e
font_01_sfnt_off000058d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58D8 10116 bytes
SHA-256: 563a2b1605364b96333af83416a385972ac3f19bbabf5fdb5e975a9f3da696dd

Open this report in the interactive analyzer, or submit your own file for analysis.