Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2035a0dcdb8708b…

MALICIOUS

PDF

75.4 KB Created: 2021-03-18 14:30:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 9f1a450f3c76cab500e757a0b327ec5b SHA-1: 479d70b2738223de4607bbf9db011f5cb992f2f8 SHA-256: f2035a0dcdb8708b965fe10620358f7dffd857e7b3448fa0eecc32fb6554d7c9
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains a large number of external links, with the primary suspicious URL being https://golowaki.ru/wix?keyword=unblocked+slenderman+games. The heuristic 'PDF_SEO_LINK_FARM' indicates the document's purpose is to host numerous links, likely for SEO manipulation or to distribute malicious content. No scripts were extracted, but the presence of numerous external links suggests a redirection or download mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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 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.
  • 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://golowaki.ru/wix?keyword=unblocked+slenderman+games PDF link annotation
    • https://cdn.sqhk.co/banuluwopote/ijiahjH/solebe.pdfIn PDF document text
    • https://cdn.sqhk.co/pumafuki/ajieQig/32170825757.pdfIn PDF document text
    • https://cdn.sqhk.co/bixevemaxi/8TJtsgg/dewalt_router_template_guide_set.pdfIn PDF document text
    • https://rimozaruminipa.weebly.com/uploads/1/3/5/3/135391391/09bccd02a60bac6.pdfIn PDF document text
    • https://cdn.sqhk.co/wodigajamu/cZgcbjd/masterminds_book_4.pdfIn PDF document text
    • https://titanukudolilip.weebly.com/uploads/1/3/6/0/136082060/3ab62df.pdfIn PDF document text
    • https://romidanunopupef.weebly.com/uploads/1/3/1/1/131163616/ac93cb5f2134.pdfIn PDF document text
    • https://cdn.sqhk.co/bupewazadufa/if9zd1K/revalilaxijorin.pdfIn PDF document text
    • https://cdn.sqhk.co/nufomewo/dPjcvxs/love_live_wallpaper_hd.pdfIn PDF document text
    • https://cdn.sqhk.co/zakoduba/bThchh5/bleacher_report_nba_celtics.pdfIn PDF document text
    • https://cdn.sqhk.co/sovajepuxe/Shh7jiA/chemische_formeln_bei_word_schreiben.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/f55f6b51-a46f-488d-a9eb-d403779b24bf/39698207528.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d04c8eff-a3a3-49a6-9c95-a213b0f37528/loreal_360_face_wash_india.pdfIn PDF document text
    • https://s3.amazonaws.com/silubebebefuju/students_life_application_study_bible_personal_size_nlt.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/departmental_exam_answer_key_december_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/27365195258.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/apostrophe_worksheet_grade_5.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/26062177645.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/badminton_game_pictures.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/37077796140.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0408c984-6d1b-4b90-b9c0-2bb757dd18a2/does_wordpress_do_hosting.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/21455060449.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98ccc71d-efc6-47a7-a6f1-a31e629d2523/duwukawuxenunelajus.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_off0000e833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE833 5456 bytes
SHA-256: d60483a3569f2ba6543147ea1ba7fe725e5ee32d730e77f4989dbf2879bdd7bb
font_01_sfnt_off0000faa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA7 10984 bytes
SHA-256: 56df46cddac442ea8e0a7c418dd2f440299fbea88e20207c9f16e275ae7eb8a8

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