Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6ee7d8c226c81fe…

MALICIOUS

PDF

89.4 KB Created: 2021-03-21 08:29:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 87ba8ac0fa373ff70c01af942518ef91 SHA-1: cd1c34b8dbfd788a2d88948b65b02dd0c2019192 SHA-256: f6ee7d8c226c81fec32e4d5d109b3be37e2dc9675e70d27b2d68e4cde094e509
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, with a primary suspicious URL pointing to zajinet.ru, likely intended to redirect the user to a malicious site. The PDF structure and embedded content suggest it is designed to exploit user trust by appearing as a legitimate link or search result.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://zajinet.ru/wix?keyword=elemental+manipulation+savage+worlds PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369146/normal_603ccf0268954.pdfIn PDF document text
    • http://mudixefibewab.mywebcommunity.org/kuzixafis.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402740/normal_600ef5ac830e7.pdfIn PDF document text
    • http://milanomoda.site/25895877798sxe88.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369179/normal_600882f26f228.pdfIn PDF document text
    • http://idealicait.website/joxiwotufifaxibaa7oqf.pdfIn PDF document text
    • http://waferaboteb.mypressonline.com/complete_hatha_yoga_asanas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474727/normal_603026c77165e.pdfIn PDF document text
    • http://dewisazovuvoxi.mywebcommunity.org/convert_large_cdr_file_to.pdfIn PDF document text
    • http://aduo5.online/fajajagupikarebawibipogif9ydx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456387/normal_5fe256d06d435.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/677d9fd4-3ec0-4bf8-8882-5f6799e08566/dusawiwusomukutabem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82aee91b-53fe-4a38-8cec-3924bea8d659/pl_sql_tutorial_for_beginners_with_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80ac9677-31ad-4c6e-b6f4-90db2e9cd500/hunger_games_catching_fire_book_vs_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/24736977483.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/376f96a3-5ea1-4376-a415-8951a99af1f6/vixatovunepibilavur.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/11409721567.pdfIn PDF document text
    • http://rukosivujuxu.atwebpages.com/cgp_ocr_physics_workbook_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40a0e98e-22e4-4710-a5c6-bd8107b6d56b/4_Ezra_Road_Danbury_CT_06811.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41c13f3d-6e4e-41d8-b86d-e84c39352cb6/88257772316.pdfIn PDF document text
    • http://wobadumiravolu.atwebpages.com/cut_and_edit_online_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1e8c45b-d800-4e4b-b28f-87790fcaa54d/casio_protrek_titanium_band.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1109eb48-a331-4644-ba5a-4c3b6f7f9b3a/80744274322.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12156 5388 bytes
SHA-256: c59626475c647dad910ba35cab650826f1f259fafd7930f870203d3da199c1e2
font_01_sfnt_off000133a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133A3 10600 bytes
SHA-256: 6447b8c29d1e5e72f7140ab510663a7efbc8dfa4faef430ff44912476fcdc1b7

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