Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c9a9211da01182e…

MALICIOUS

PDF

43.2 KB Created: 2020-08-17 10:54:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a00b09abc6edfcd0731c45d5bdb4ed2b SHA-1: 850b917955bde45316fe23941278a68af7c2a8b7 SHA-256: 0c9a9211da01182ec8487a062c2ee2cc74c8ad47c1967c7170d651df4b290b9d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains text suggesting a lure related to 'natural landscape images hd' and includes the malicious redirector URL. The presence of a large number of external links, including a link farm, indicates a phishing or SEO manipulation tactic.

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=natural+landscape+images+hd In PDF document text
    • http://files.datumautomation.com/uploads/1/3/1/4/131437119/zesuzijafipeku_tinurop_pulefeg_zijusuxadalen.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/1/0429/7352/8213/files/addressing_modes_with_examples_in_computer_architecture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5665/9621/files/fovawizexoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/cosmic_eye_watcher_badge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5719/3895/files/boganasumubus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7073/2950/files/certificado_medico_escolar_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/memexekevitaziki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/88937488932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7731/1391/files/xopaxipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3846/files/pikurolugoburuwudigoxew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3633/1419/files/didopevulugug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9345/0134/files/6101383671.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off0000491e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x491E 5228 bytes
SHA-256: 89e15769a53516d94121f8db4cf7f05c270dffd8a77b4616fb82a7e2576f8f84
font_01_sfnt_off00005ab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AB0 9888 bytes
SHA-256: 7f0be1323455ef8ce7fb1d1d4cb91082bdfd239a0ca6ab56294d5ffd76fcbae1
font_02_sfnt_off00007cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBE 16164 bytes
SHA-256: f469c5aa689aa4c1965481b78cfaebbf1c3ebdad2306c7067134b7b4aaa0addd
font_03_sfnt_off000091b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91B7 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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