Malicious PDF — malware analysis report

Static analysis result for SHA-256 16072c0e56243674…

MALICIOUS

PDF

50.8 KB Created: 2020-08-08 14:17:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0db766e7d0d8f53a100ce18d2dc9ef9e SHA-1: d67947c6be5dc25e5b5132b0291cd90ad9315636 SHA-256: 16072c0e56243674f42397a2c0088515a5eb4c52bf1af3ed12005b78546d413b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, including one pointing to a known malicious redirector. The document body, though obfuscated, contains a URL that is also present in the heuristics as a malicious redirector. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution.

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=er%25C3%25B6rterung+schreiben+beispiel+pdf In PDF document text
    • http://ruwalupop.juliehui.co/uploads/1/3/1/3/131383544/pupabopu_jamozuburukuzav_gavipizuminajut_metagewet.pdfIn PDF document text
    • http://redilak.nestnewhomes.com/uploads/1/3/1/3/131380429/12be26a7d54.pdfIn PDF document text
    • http://files.fountaincityfc.com/uploads/1/3/1/1/131164174/ginivedepexodojebu.pdfIn PDF document text
    • http://files.beautiquestyles.com/uploads/1/3/1/4/131407102/miparinegedo.pdfIn PDF document text
    • http://files.omahabeadaffair.com/uploads/1/3/0/7/130776661/pegobug_vawareniwu_xevab_votev.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/1/0433/8683/0998/files/36198274356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1656/6422/files/76361999175.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/sadojugima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4939/files/lodafotufufomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/tufikowodorufojigeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1955/8299/files/electronegativity_and_bond_polarity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9763/7535/files/antigen_retrieval_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8688/8601/files/11097635266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6166/files/jofedofoxavaw.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007139.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7139 5440 bytes
SHA-256: 7ab0751887f07f27df97fd74e5c2942e722ff5ae742a8ff5b15eca326a5def60
font_01_sfnt_off0000837a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x837A 10628 bytes
SHA-256: 8a8603259c78cb08849daa309f37ba95376ffa3776980a2a56841c166ad6d80f
font_02_sfnt_off0000a667.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA667 16148 bytes
SHA-256: 51babe3b44e703ca5a92278b053c112c5c116674d3b708c8e2cb3e4aa6bd9a04

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