Malicious PDF — malware analysis report

Static analysis result for SHA-256 740ceee9657153e3…

MALICIOUS

PDF

72.9 KB Created: 2020-11-22 22:15:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 2f6ad2c4b771b7838d9b43ecadc41e7f SHA-1: 44babe91607286039c80004eb0bbd2b305b19d53 SHA-256: 740ceee9657153e308d4a6741edea55eac8f1237421a8b583dbc87c2e0e48ba6
244 Risk Score

Malware Insights

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

This PDF file was identified as malicious by multiple heuristics and an ML classifier, indicating it likely serves as a phishing or redirection lure. It contains a large number of embedded URLs, many pointing to disposable hosting, and at least one URL is known to lead to malicious redirector infrastructure. The document body text is heavily obfuscated and appears to be junk data, suggesting the primary function is to host these links rather than convey information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://traffmen.ru/123?utm_term=destiny+2+se+busca+consul+partisan In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366987/normal_5f94d7df30ea2.pdfIn PDF document text
    • https://sekamaxe.weebly.com/uploads/1/3/4/5/134590712/8281988.pdfIn PDF document text
    • https://juluvolalo.weebly.com/uploads/1/3/4/4/134435755/zapitolugizito.pdfIn PDF document text
    • https://jugidemavewug.weebly.com/uploads/1/3/4/2/134265355/1068395.pdfIn PDF document text
    • https://lupigufenof.weebly.com/uploads/1/3/4/5/134509144/wobupimap.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/wawakonulunupel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365636/normal_5f8df2426b397.pdfIn PDF document text
    • https://patelevenimo.weebly.com/uploads/1/3/1/4/131437444/4302934.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/84995d28-39c6-47d4-9413-ccc810eb6a3f/music_lyrics_journey_don_t_stop_believing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1eaa8f3a-489b-44d2-add2-edade808b45a/polyprotic_acids_pogil_answers_ap_chemistry.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63717fa4-c806-4986-b1c5-e6981d85ff4f/57098728096.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/pre_cooked_chicken.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/grand_terrace_high_school_football.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6145ec5a-2579-4791-914d-d5966ed3bcb4/rulukomedaj.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/30842211760.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88824a13-6fa1-4ede-9ee4-71bef9a9076b/is_tickpick_legit_reddit.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA45 5300 bytes
SHA-256: ea40d1ecf254f014dd2c85f33c1df9c0bf8172a52702b45cfc91083ba07705f2
font_01_sfnt_off0000dc61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC61 10248 bytes
SHA-256: b2fdda2d07290282a063822271b572a0ec07d4f1d02aaf75102ad6ac260deeb2
font_02_sfnt_off0000ff2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF2F 16196 bytes
SHA-256: 7c3f8eebdd5b6a211293372c5e6f59034f53d317afc261856be1fe51824f6f8b