Malicious PDF — malware analysis report

Static analysis result for SHA-256 41785d68b70dde16…

MALICIOUS

PDF

76.6 KB Created: 2021-01-02 12:11:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2787d38382b16b9cc2b7f80d1c7ec077 SHA-1: 4560e0e93f20e1f56597d8b53ccb917ac755b25e SHA-256: 41785d68b70dde16236931a409c4ac89dd4117c94be74b265521b89ffb52e9e6
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • 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/aws?utm_term=abandoned+farmhouse+poem+worksheet In PDF document text
    • https://cdn.sqhk.co/pemejurove/ijazjjm/sd_tank_war.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419424/normal_5fc36a1a83412.pdfIn PDF document text
    • https://cdn.sqhk.co/sesijisova/gj2Thja/pulenuvenam.pdfIn PDF document text
    • https://cdn.sqhk.co/potasuregoz/AhdXhha/business_continuity_plan_template_for_transport_company.pdfIn PDF document text
    • https://cdn.sqhk.co/zifiguwosu/iZPxifr/download_game_thunder_stock_cars_mod_apk.pdfIn PDF document text
    • https://nizesuvijeva.weebly.com/uploads/1/3/1/6/131607023/funim.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476446/normal_5fceef3298e2a.pdfIn PDF document text
    • https://laratenin.weebly.com/uploads/1/3/2/8/132816160/fuwonizipepiroguw.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/SDaTiel/38067616973.pdfIn PDF document text
    • https://gipafefigemer.weebly.com/uploads/1/3/4/0/134097902/genawixuga.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/518857c6-4b39-4c25-a862-47000ab745c2/dixiwitafapinezenemubunir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4a7184e-9361-4a24-ba66-4c3ed02308a7/gubinobato.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/190470e5-0ef3-4f5a-8074-bab38b4a1b0a/personajes_de_asterix_y_obelix.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC1 5532 bytes
SHA-256: 515a400e51e58623411193d051d6fdea682ec34659ab8348fe4298afcabab846
font_01_sfnt_off00010079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10079 11300 bytes
SHA-256: d20769ce29f9945a998f08b324bcb899377704eaadfb17ae36ae67c40da47de9

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