Malicious PDF — malware analysis report

Static analysis result for SHA-256 f408c0dabb985105…

MALICIOUS

PDF

66.2 KB Created: 2020-08-01 00:54:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b64f3478726a787b88a96ce2293ca6b0 SHA-1: 7430dd965fedb8fea4170d9fbd22945cad1d472a SHA-256: f408c0dabb985105f78e9067e5e32549fcf5a2991845b3801eb125010bdc5db0
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on domains like 'cdn.shopify.com'. The embedded document body text, though heavily obfuscated, contains the same malicious URL, reinforcing the intent to redirect the user to potentially harmful content.

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=japan+porn+mag In PDF document text
    • http://files.katshelter.com/uploads/1/3/1/6/131637482/zegud_xuzakimowifima_gugudawenupiz.pdfIn PDF document text
    • http://files.supstlouis.com/uploads/1/3/1/3/131398498/tidefe_wolobiluduxubo.pdfIn PDF document text
    • http://files.katemarch.com/uploads/1/3/1/3/131380493/lapolezogurasedaf.pdfIn PDF document text
    • http://files.rocnap.com/uploads/1/3/1/4/131411688/jofevijer.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/1/0433/0687/7080/files/niroduwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3702/3641/files/69377113995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1661/8145/files/worugerapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7956/3419/files/lagoki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/93166060501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4336/files/58756352069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9443/2161/files/bejonilutalinoligad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0741/0329/files/6821400930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/21702781071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4229/2390/files/14935730758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2466/1154/files/17480614393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1238/2117/files/xabajedowenuxifol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1368/5927/files/jefawel.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_off000095b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95B4 15420 bytes
SHA-256: 072fe0ded5aa785a54870dd84e60a688db01f06c0cd83ce99371fc3f4f7bb3d3
font_01_sfnt_off0000c78a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC78A 4916 bytes
SHA-256: 8e3b9d9f840e589e736c39f09ca5a4101b0f3ae5c0c76965bd9f43ceb2b7d9be
font_02_sfnt_off0000d834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD834 10236 bytes
SHA-256: 57bab10c6bf8d1dbe58c458951d6d63f66726635fb64687a1f5845f2e7d5c000

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