Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb54e7496f82ed7f…

MALICIOUS

PDF

41.4 KB Created: 2020-08-07 20:16:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8de7ad7147427d319246407495d997a SHA-1: acd1924072f74f1a1f5617e8d6ac3f30bce243f1 SHA-256: eb54e7496f82ed7f4b8a8885c99dcd0f46140b84fdcabede7ff8cda8cd17385c
194 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that appears to be a lure for a free PDF download, further supported by the presence of many external PDF links. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=la+boite+de+pandore+werber+pdf+gratuit In PDF document text
    • http://files.lillyotasevic.ca/uploads/1/3/2/6/132682966/b5d2935.pdfIn PDF document text
    • http://zizikup.sterlingcanine.com/uploads/1/3/1/6/131636725/vopavonanim.pdfIn PDF document text
    • http://files.hanorsgoldendoodlefamily.com/uploads/1/3/1/3/131380177/ligosili.pdfIn PDF document text
    • http://files.mpbcroanoke.com/uploads/1/3/0/7/130775758/6304917.pdfIn PDF document text
    • http://sedigo.travelblogbylily.com/uploads/1/3/0/7/130738870/sonigilolape.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/1/0433/2965/0856/files/fomerurokozuzikusedux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6710/5687/files/2207215130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0163/4213/files/ejercicios_tipos_de_sustantivos_1_eso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/wajuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8596/3169/files/10573722417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5543/8241/files/search_document_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8532/3683/files/pikebemovubajek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7974/5192/files/50599105634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2536/7194/files/5312116725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0203/5351/files/38050023670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.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_off00005f4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4C 5172 bytes
SHA-256: bac227ef91feb70ec9d4bf040d4cf431aade656a51a2d688d1fa33d7699cd070
font_01_sfnt_off0000710c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x710C 12300 bytes
SHA-256: 1e7fe926c4793ee016fa1f2500516c47757c569d606206f47c1214db47673c43

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