Malicious PDF — malware analysis report

Static analysis result for SHA-256 c56546966db3f931…

MALICIOUS

PDF

38.8 KB Created: 2020-08-21 11:56:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f86dd4bf77861d0baad19a5534311e70 SHA-1: b7f153e18e3da5b2b6548bed9314ad9db3e1beef SHA-256: c56546966db3f93101f199e9268be5583649ec8823d4de527f37cc158aa95b60
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to other PDF files, a technique often used for SEO poisoning or to host malicious content. One of the embedded URLs, 'https://ttraff.com/pify?keyword=aankh+maare+video+song++3gp+tinyjuke', is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the link farm and redirector suggest a delivery mechanism for further malicious content.

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=aankh+maare+video+song++3gp+tinyjuke In PDF document text
    • http://kafibala.goldenpandarestaurant.com/uploads/1/3/0/8/130813650/duzuninat-zapiwokuzew-jorigijomuvowij-jekeragob.pdfIn PDF document text
    • http://zamigegez.gratiotdems.net/uploads/1/3/0/7/130776485/vagebipo-relojun-nexotilopa.pdfIn PDF document text
    • http://zapop.winningmentalitygroup.com/uploads/1/3/0/7/130740206/zuseged_rogiguvuxod_pupekolodugulum_regaka.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/1/0434/4751/7341/files/vudekogigasegasogusujot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/21728556612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/medical_microbiology_greenwood_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1540/3682/files/wufujokepafejus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5663/6828/files/33295273378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/2407/2086/files/ldaptemplate_search_example_spring.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1925/5454/files/60142273315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5720/9766/files/ralazomoxefotowuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6238/6079/files/62054273658.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9823/4270/files/jorovedifetepakerix.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 4

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_off00005785.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5785 5796 bytes
SHA-256: 3a2a9f9985bdf573af6a027f5b805dc298a51d69aef147605c1c750c083a446c
font_01_sfnt_off00006b25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B25 10320 bytes
SHA-256: 4aef22571b0d6c9e8afe7d2f8e2b895dddc73c05450050370672e2c1301ba3e0

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