Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e54f2d29ad916dc…

MALICIOUS

PDF

39.7 KB Created: 2020-08-19 09:01:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c91942cae1eb6977ec888012f5c57b5 SHA-1: c2e7ee536feb6818c53982cff511551d2abb5146 SHA-256: 4e54f2d29ad916dcd5696a669e91d638c6662cd93b4a9d96e4e509919c3c27aa
194 Risk Score

Malware Insights

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

The PDF document contains a link that redirects to a malicious URL, masquerading as a software download. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms this behavior. The embedded document body text, though heavily obfuscated, contains keywords related to the link's purported content, suggesting a lure to trick users into clicking the malicious link. No scripts were extracted from this sample.

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=crystal+reports+redistributable+crredist+msi In PDF document text
    • http://files.thehenrysplantfarmonline.com/uploads/1/3/2/8/132814930/fowuvitedafopan-jorapepawe-bazax.pdfIn PDF document text
    • http://gurig.anrcdesign.com/uploads/1/3/2/6/132682883/kedavezisu.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/1/0430/3981/7890/files/77098510049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8306/files/wejeke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8506/9477/files/wazelivudalozetuxigokor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6776/7970/files/wifi_menu_arch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5725/8395/files/zajonokonomevewonubo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6592/3992/files/88249562521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0346/0259/files/63840321387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2981/5705/files/role_of_auxin_in_plants.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/4235672026.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 6

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_off00005c9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9E 5364 bytes
SHA-256: e8698a4f62d32c7a7a6190ccde4f53707b9122d3d501e517724c8b560e53de20
font_01_sfnt_off00006ebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EBD 10332 bytes
SHA-256: 1fec778de211bd71d370e9e2c67ac3144f0ad5e72b93a05af25046adcfa61527

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