Malicious PDF — malware analysis report

Static analysis result for SHA-256 93645683a806d182…

MALICIOUS

PDF

40.9 KB Created: 2020-09-16 11:29:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0191d51b824fc944a072212bf05aad98 SHA-1: 8a1f93d1e7cb970a1f6bc9b923d0e1198eeeaf6a SHA-256: 93645683a806d1823f06fe94d1598c62bff79a30a39a2d89fc8ac7acdeab7b35
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, indicative of a link farm or SEO manipulation scheme. One of the embedded URLs, 'https://ttraff.cc/wb?keyword=praying%20hyde%20pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links to external PDFs, reinforcing the attack pattern.

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/wb?keyword=praying%20hyde%20pdf In PDF document text
    • http://nuzed.agentpgs-qatar.com/uploads/1/3/1/6/131606490/zojigesaxil_xatubidagafivus_sararebeg_lafuruke.pdfIn PDF document text
    • http://files.lostangles.com.au/uploads/1/3/2/6/132695629/21ca6d03f.pdfIn PDF document text
    • http://lixogobi.denaliandcompany.com/uploads/1/3/1/4/131409546/4a983373a.pdfIn PDF document text
    • http://guzelifep.djdurt.org/uploads/1/3/1/4/131406686/watigokokesupam-zefubuxed-faleti-mifapizezejar.pdfIn PDF document text
    • http://files.gcchurch.net/uploads/1/3/1/4/131453651/wikemusuzolulomidov.pdfIn PDF document text
    • http://dopemudu.supercomcc.org/uploads/1/3/0/8/130813786/9c975fd1fa9d.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/1/0434/0174/0439/files/a_better_way_to_pray_by_andrew_wommack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2762/0263/files/canada_visa_application_form_bangladeshi_citizen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9286/0327/files/core_java_tutorial_tutorialspoint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1463/6198/files/85717251850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/6246/1344/files/lofudirozigomunedebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5963/3559/files/the_like_switch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9079/5941/files/wagekekofiravedazuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/8814/1476/files/final_fantasy_tactics_gameshark_codes_epsxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0600/9255/files/97916508211.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 3

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_off000062fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FE 5196 bytes
SHA-256: b3bbaca00b2c5f185401a74ed03f16b01f2c5b84de0b945561880e03c8adad72
font_01_sfnt_off000074ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74AE 9976 bytes
SHA-256: 18f1c6157e849edaadd3fbbeed5edb8b9be376c38bea2c0f40e07e51f839f372

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