Malicious PDF — malware analysis report

Static analysis result for SHA-256 b76417f74a355c83…

MALICIOUS

PDF

50.8 KB Created: 2020-08-14 20:38:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 133873262602bbda7d9f76dcffd1ad09 SHA-1: d4f0f39f9365ce7e1e46235f4d9cce3691285552 SHA-256: b76417f74a355c83e5272b8161f603c89eaa0909456b66e6cff86c6debec91e7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a redirector, which is part of a link farm designed to attract search engine traffic. The primary malicious link is 'https://ttraff.com/wb?keyword=telechargement%20application%20pdf%20pour%20android', which likely leads to a malicious download. The ML classifier strongly indicated maliciousness, and the presence of numerous external links supports a content-driven 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/wb?keyword=telechargement%20application%20pdf%20pour%20android In PDF document text
    • http://files.tiffanynewman.net/uploads/1/3/1/4/131453506/kelamejifizotarige.pdfIn PDF document text
    • http://zunume.smsagmarketing.com/uploads/1/3/0/7/130775732/8844290.pdfIn PDF document text
    • http://files.spiritofsaron.org/uploads/1/3/1/8/131871864/fifugitewozilat_luvodij.pdfIn PDF document text
    • http://files.lansingplacemakers.org/uploads/1/3/1/3/131384374/deragebifevinos.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/1/0431/1593/7948/files/fullmetal_alchemist_ps2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/basic_rules_for_a_discord_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9641/6157/files/zowijejutinatejuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/matteo_bandello.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2767/6829/files/36659991887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9524/2392/files/35520105068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2535/0306/files/mubaxorugifefugidigaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dutevitijenunolekegek.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000693a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x693A 3980 bytes
SHA-256: e160c8906e93e5a0d6afad07f159318ea04d6faea735b114312e4b9461b646a9
font_01_sfnt_off0000774e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x774E 5220 bytes
SHA-256: 9b14b7ea14c8d58b2d3aa31d628e482f3211eadc11bc0d30ce3a77f48c7598d9
font_02_sfnt_off000088dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88DC 11744 bytes
SHA-256: 18ecc6f2b04389c196095001b192cb4027e2f0e34dc54d691e51bffb587f9148
font_03_sfnt_off0000adcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADCF 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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