Malicious PDF — malware analysis report

Static analysis result for SHA-256 f41c02274f2b4166…

MALICIOUS

PDF

80.9 KB Created: 2021-03-10 08:23:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 0e9a6c39012bbc9bc2c7325ddbc23537 SHA-1: 2d4ec8da81d7243699fe381542b24c048e1b6357 SHA-256: f41c02274f2b4166478b42658959ec7af69e710802ca54a630cc69a3c9cbfd21
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://soxebez.ru/123?utm_term=capgemini+interview+questions+and+answers PDF link annotation
    • http://lexibanoma.iblogger.org/82695333461.pdfIn PDF document text
    • http://zitirisiz.mywebcommunity.org/tactics_for_toeic_part_1.pdfIn PDF document text
    • http://zonatoxosap.iblogger.org/zobabijinime.pdfIn PDF document text
    • http://geloxexomub.iblogger.org/18916647639.pdfIn PDF document text
    • https://pesiwuveso.weebly.com/uploads/1/3/5/3/135392822/4a51af3b062fde.pdfIn PDF document text
    • https://susawodaf.weebly.com/uploads/1/3/2/8/132814942/084eb.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/juegos_de_cinema_panic_2_y8.pdfIn PDF document text
    • https://kunoloxudiruk.weebly.com/uploads/1/3/4/7/134767428/3d967925d4509.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://s3.amazonaws.com/leteraxewe/93518021877.pdfIn PDF document text
    • http://wolobugoxew.myartsonline.com/computer_network_architect_employment_trends.pdfIn PDF document text
    • http://tifavamifikas.myartsonline.com/milpersman_1306_instructor_duty.pdfIn PDF document text
    • http://kemogozamamov.epizy.com/navy_evaluation_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e7b4fef-13fc-48f6-9aee-0ae1e716dd48/keturatulolenija.pdfIn PDF document text
    • http://xinifaduzinuvu.onlinewebshop.net/what_are_some_examples_of_ethical_issues_presented_by_new_technologies.pdfIn PDF document text
    • http://kosidigipetuvu.epizy.com/sovil.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/curb_your_enthusiasm_theme_song_sheet_music.pdfIn PDF document text
    • http://pemeromerap.rf.gd/wolajatipumaziruturesuvi.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/dictionnaire_juridique_franais_espagnol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8694666-5b6c-431d-bd5f-f29b2cd38c5e/73405620428.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/39039055905.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_off0000f258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF258 5428 bytes
SHA-256: 0bc6b4f173fbbbc3a0dfdad23ee7bb138b13570d1a9dc08b3814d86da3f98695
font_01_sfnt_off000104c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104C7 10464 bytes
SHA-256: f7ca20ab3d3645beae55f55c4ae71a17056d3dd91f798f9d5011f4c92bf49d9a
font_02_sfnt_off0001281f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1281F 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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