Malicious PDF — malware analysis report

Static analysis result for SHA-256 4410b4d3ac462028…

MALICIOUS

PDF

43.1 KB Created: 2020-08-18 17:14:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf64f4d5aeb01f5e43a46ae537af0db3 SHA-1: 1b7c4a2594016337c6f6cc2a878529261496ee6b SHA-256: 4410b4d3ac462028e64b136d9bf3dd4df2ea36dd3818d44a91e70418a81c96e8
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with the primary malicious link pointing to a redirector. The document body, though obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=guitar+chords+diagram', which is flagged as a malicious redirector. This indicates the document's purpose is 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.cc/pify?keyword=guitar+chords+diagram In PDF document text
    • http://files.choisnuts.com/uploads/1/3/1/3/131381640/bitopok.pdfIn PDF document text
    • http://files.loriblaylock.com/uploads/1/3/2/6/132681617/vuxajapo-lopalekititinek-xurimidujeri-mopexal.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/1/0434/0042/9731/files/29872994386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8099/0366/files/baloch_history_in_urdu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9508/4456/files/rizexawube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0581/2633/files/kixetomuvef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0957/8904/files/54545688920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/73623187315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1266/9089/files/maliwewidara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0939/2285/files/58332044383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1060/2661/files/snap_circuits_jr_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3525/5203/files/44419959326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0991/6576/files/autarquias_em_angola.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
🗂 Part of campaign: loriblaylock.com 6 samples

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_off000061c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C3 5352 bytes
SHA-256: 0a20e879c841b5d94ad23436c94932bda180b54b52ef1422314e185b54694cfe
font_01_sfnt_off000073c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C3 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off00007c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C51 10252 bytes
SHA-256: f2e3b86049395c59691c69963f6264faad6a9e444ab17556873dbce1b93e2d81

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