Malicious PDF — malware analysis report

Static analysis result for SHA-256 0344d551d311d9f4…

MALICIOUS

PDF

45.2 KB Created: 2020-08-25 04:39:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a9d55184bdfad06bc9d080f5f13dad5 SHA-1: 73365288a2d35ca605511f79e8faaa7a4e2c5501 SHA-256: 0344d551d311d9f4be8fa399317a6e2443b27f7c82af51d39aaa3956a59304aa
234 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, including one pointing to a known malicious redirector. The document body and heuristics suggest a credential harvesting lure, specifically targeting MFA or one-time codes, by presenting a fake exam form. The primary malicious URL identified is https://ttraff.com/pify?keyword=b+ed+exam+form+2019+ccs+university, which likely leads to a phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=b+ed+exam+form+2019+ccs+university In PDF document text
    • http://files.neilmckenzieyouthfishingcontest.org/uploads/1/3/1/6/131606127/1963708.pdfIn PDF document text
    • http://pupefinax.robynpforrryan.com/uploads/1/3/2/6/132696063/pegekepogon.pdfIn PDF document text
    • http://rofipaj.muevetefacil.com/uploads/1/3/1/1/131164250/porazevebutod-lutuvafu-xopajazeruduto.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/1/0457/5130/4348/files/bba_syllabus_ipu_2018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4992/7327/files/pusifukal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/20_amino_acids_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8131/0114/files/puzitafegemozosizugijupod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3399/2085/files/musica_andina_peruana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1891/9837/files/math_pre_calculus_12_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3533/6616/files/chinese_language_translation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4931/1646/files/lomefupix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/3133071676.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
stream_006_off0000978c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x978C 4244 bytes
SHA-256: 0e056a25aed98d95bf5895b4eb90d6cf6a25ddc0c622031003d554133aa1f606
font_00_sfnt_off00006036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6036 5896 bytes
SHA-256: 3b6bdd85be72f228fc5cd4e72ef03352ea253c59e7935ea207c0770109ad3126
font_01_sfnt_off0000744f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x744F 10244 bytes
SHA-256: 7fcab09e82f9b8585ed82aeb13c2b1ba31a159ba26e6c2ca00f1a91917e2de4c

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