Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8719cae229d1767…

MALICIOUS

PDF

44.2 KB Created: 2020-08-08 00:43:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4539d93dbfdec694522da6fd46a19528 SHA-1: 392e9baaab034d79103c4679892fafc7407b2eaf SHA-256: e8719cae229d17674f70f4624577644626bd7fbcfcfd903be77c7aaff039c89c
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though partially corrupted, contains text related to 'Apprendre langue française pdf' and includes the primary malicious URL. This suggests a phishing or social engineering attack aiming to redirect users to 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.ru/pify?keyword=apprendre+langue+fran%25C3%25A7aise+pdf In PDF document text
    • http://files.jwhite.ca/uploads/1/3/1/4/131453950/koxijok.pdfIn PDF document text
    • http://files.classicaldigitalphotography.co.uk/uploads/1/3/1/3/131378771/milizax_bowidotewofujos_mufebevopuba_judifakupifir.pdfIn PDF document text
    • http://files.cindysearles.com/uploads/1/3/0/7/130739076/b0e36db.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/1/0431/0699/2289/files/17030080781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/jujudurijagepogokivamoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/bafutidemarexej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4988/5606/files/concatenate_string_in_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/tuvad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/sawavosorupofadesolovagum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/8924475500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8438/9275/files/skyrim_grey_face_bug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5763/5735/files/16726191151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/xezoxesodejisagabez.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 2

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_off00005cad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAD 5072 bytes
SHA-256: 64ae8b726d3bbb8de1ac736b8ace96d5bdcc5ca007f8b124bc68ee6fb744a49b
font_01_sfnt_off00006dee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEE 11864 bytes
SHA-256: 5a463bd428a682483df27aad7047accc997978f21c420fd2f52384cbe8032f52
font_02_sfnt_off000093cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93CF 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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