Malicious PDF — malware analysis report

Static analysis result for SHA-256 956b60c750f5a026…

MALICIOUS

PDF

46.5 KB Created: 2020-08-19 02:45:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0614de4a5af7f4c33d4371777f534c04 SHA-1: b7fb6b28621174e55de9f1f18de0ef65fbce973e SHA-256: 956b60c750f5a026efa268a8547514ebcc0a0623c6b135e7999204633d1606fa
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with the primary link pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, suggesting an attempt to manipulate search engine results or distribute spam. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the document body and link structure indicate a lure designed to redirect users to potentially harmful 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.cc/pify?keyword=chambery+tourist+information+office In PDF document text
    • http://files.nalipops.com/uploads/1/3/1/4/131408899/tumumitukem.pdfIn PDF document text
    • http://files.knuckleswhiterock.com/uploads/1/3/1/8/131856247/koteruzujidimu.pdfIn PDF document text
    • http://files.mariannewardart.com/uploads/1/3/1/4/131453530/jovarerobigad-bowexil-sosevivodov-jalobo.pdfIn PDF document text
    • http://jufunulep.aicphr.org/uploads/1/3/1/6/131606834/buwuxixugumumalo.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/1/0438/2500/4706/files/kannada_old_feeling_audio_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8951/1071/files/89932399337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7087/4009/files/human_eating_lady_persona_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/rebowav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4297/1553/files/48011967971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2324/5216/files/kerogoduwazamasabuxiduwiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/fuvivexojasatovoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/mezujozako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4071/0566/files/nijurapobamosinelawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9382/6463/files/zeviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2522/6152/files/barsaat_1995_song_ming.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 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_off00006aa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA7 5236 bytes
SHA-256: d3ef4093d128e2a82749c60584496a54cc2631070fcdcf5c8e0787ac1cd325a5
font_01_sfnt_off00007c5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C5D 10032 bytes
SHA-256: e4a45a8f82a88f069714751d64925c626bc0777a21ffd5d5d7fc189f1521d8ef
font_02_sfnt_off00009ec3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EC3 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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