Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cc8e587eded47a8…

MALICIOUS

PDF

90.3 KB Created: 2021-05-17 09:20:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: bca7ad915798336598685089cf3ffbaa SHA-1: f72fe633e16ccadbc3f1068f85ce50bbe7688417 SHA-256: 6cc8e587eded47a8d005acf17a01b28ee32be1e7e30a33c15247d083507871a4
126 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs, with one prominent URL pointing to a suspicious domain ('maypoin.ru') that is likely used for phishing or malware distribution. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further suggests a malicious purpose, as it indicates the PDF is part of a link farm on disposable hosting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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://maypoin.ru/strik?utm_term=tipos+de+comunicacion+breves PDF link annotation
    • http://bexukavinawexov.mygamesonline.org/sybex_ccna_200_125_free_download.pdfIn PDF document text
    • https://wumupokurura.weebly.com/uploads/1/3/0/7/130776197/3553eefd06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384463/normal_6029967def4a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446380/normal_6045f85f935f7.pdfIn PDF document text
    • http://zijixiteluwek.scienceontheweb.net/tefabosakenebagokof.pdfIn PDF document text
    • https://lifuregetarip.weebly.com/uploads/1/3/4/3/134384561/75525d6878663.pdfIn PDF document text
    • http://posurazatux.mypressonline.com/minority_rights_in_international_law.pdfIn PDF document text
    • https://xovuxajewilim.weebly.com/uploads/1/3/0/7/130775567/bfa3b1.pdfIn PDF document text
    • https://ruwusugotalub.weebly.com/uploads/1/3/4/6/134690364/midelime.pdfIn PDF document text
    • http://buzajusefuzasi.22web.org/tuvikugoxatenedumuveto.pdfIn PDF document text
    • https://bozomobumaxal.weebly.com/uploads/1/3/4/8/134873382/savesadipav_daxorun_folivupekuw_kokofe.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
    • http://dezobod.onlinewebshop.net/coastal_geomorphology_book.pdfIn PDF document text
    • http://tofezaniv.rf.gd/activator_office_2016_bagas31.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/algebraic_functions_worksheets.pdfIn PDF document text
    • http://bopiguxa.atwebpages.com/90159814047.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/vomewu.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/14672343782.pdfIn PDF document text
    • http://kixomeremit.epizy.com/metformina_para_que_sirve_este_medicamento.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7c70779-3628-4c99-bf1f-23622ec11949/36072757867.pdfIn PDF document text
    • http://poruroj.epizy.com/what_are_sensory_words_for_taste.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9120240e-a96f-4f5b-9cf5-648d38e10769/femalederatalekedukitol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7d047c9-95f3-42c6-bcd7-625ca412bc15/hp_5520_printer_troubleshooting.pdfIn PDF document text
    • http://vosikixu.rf.gd/bellarine_rail_trail_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40b8189f-93c9-4767-bfba-b14fd0cbb803/tv_ears_digital_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cb415e8-a7df-4e29-8eb5-0620cc5a16df/lefovopokajojav.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB09 5136 bytes
SHA-256: 897f1f07e41455d102be7d071f6d04b2df85fd46762223b6d3575dd3399c564a
font_01_sfnt_off00010c4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C4D 13032 bytes
SHA-256: 37eb84aefebb4b1a7956570cbe002c359ae2b0d8df49b8ecf025e19f06472119
font_02_sfnt_off00013666.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13666 16236 bytes
SHA-256: e43e27d6cfbd6df2a553fb9ec451ea05dc73015383ef87546b9c64952fe0e949
font_03_sfnt_off00014bbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14BBD 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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