Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f21d4800812da27…

MALICIOUS

PDF

46.5 KB Created: 2020-09-11 09:28:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b80021e6f2a61bff34e26fc317040453 SHA-1: 93bcafb9994d35b70cff1c89b148122bbdd5c779 SHA-256: 2f21d4800812da27f414b3bfa51a2165f0a8ba4d9ffeee77c993077b7db1037a
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.club/wix?keyword=malayalam+yaseen+book+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which are benign but likely serve to mask the malicious one. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious URL and the link farm technique indicates a phishing or redirection attempt.

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.club/wix?keyword=malayalam+yaseen+book+pdf In PDF document text
    • http://mopozizuj.americanhomerealtyinc.us/uploads/1/3/0/9/130969191/67f569e.pdfIn PDF document text
    • http://files.heatherseagraves.com/uploads/1/3/2/3/132302774/nufigidoruz-reverime-mojavo.pdfIn PDF document text
    • http://mafejewo.hashomerhatzair.ca/uploads/1/3/0/7/130739873/4366639.pdfIn PDF document text
    • http://files.earthriverproductions.com/uploads/1/3/2/6/132696263/vasawogulagodafuze.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://static.usrfiles.com/ugd/d2b720_7b276ce96ab5404dacc2f22002319947.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c0fca2_5a379e31a97649baad9e76af5410272b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/15ebe2_1078e62b8c2c44dd92daecabe6d7e45b.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9572/5982/files/tuning_superconductivity_in_twisted_bilayer_graphene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6010/9210/files/84030213553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/apache_hadoop_cookbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6547/5229/files/53385838439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1309/5067/files/56875538634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8843/7655/files/44677028183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5481/6667/files/glucopon_225_dk_safety_data_sheet.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_off00006ab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB7 5064 bytes
SHA-256: 4d1035791ee1f084a4c866a4e13b3b06a2effbb15c3d62aea447e00d771fd370
font_01_sfnt_off00007bda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BDA 10420 bytes
SHA-256: f5f177bf1f1596dbf4a1bfa6150f223cbbbd01d60a9cd60d6082b7499a9f53aa
font_02_sfnt_off00009f61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F61 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.