Malicious PDF — malware analysis report

Static analysis result for SHA-256 e985010e7b048a15…

MALICIOUS

PDF

78.8 KB Created: 2021-04-09 12:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 517a58dd08ee62ce05d83004426b2d34 SHA-1: 934ddbc2e5dd85f7008ddd4621d4208ea058a80b SHA-256: e985010e7b048a15a8242a4368358f140f0c85d282d182d87cb160497fd486ab
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 0.9993

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 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://fokemale.ru/strik?utm_term=is+burning+500+calories+a+day+good PDF link annotation
    • https://cdn.sqhk.co/bebumila/mEMidhj/92564770696.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416149/normal_60432b7fcb60d.pdfIn PDF document text
    • https://cdn.sqhk.co/ripalufix/ihhdGvv/risk_reporter_wolters_kluwer.pdfIn PDF document text
    • https://cdn.sqhk.co/fafovewidom/djakiix/lusenenoxeb.pdfIn PDF document text
    • https://cdn.sqhk.co/ramazunor/jgLjii1/game_dev_tycoon_2_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/gifidupuzuv/ijfChbn/miramuzobeliduxusubenobu.pdfIn PDF document text
    • https://cdn.sqhk.co/vulovosovem/AjcuheI/16403546599.pdfIn PDF document text
    • https://cdn.sqhk.co/moserusoba/Jifhjsp/32194104701.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448743/normal_5fdf86c57c541.pdfIn PDF document text
    • http://idealslim-ordina.site/excelsior_meaning_nyykjwn.pdfIn PDF document text
    • https://cdn.sqhk.co/verexumifo/ghg4hbI/14330658372.pdfIn PDF document text
    • http://lnstagramverifiedbadgeshelpcenters.net/best_introductory_law_booksq0v5d.pdfIn PDF document text
    • http://com-free-fire.com/green_bubbles_car_wash_brookfield4e61h.pdfIn PDF document text
    • http://ladyso.ru/commandos_1_2_3ebiwt.pdfIn PDF document text
    • http://mbfsopg.com/what_to_eat_when_planning_to_get_pregnantr4qvc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vizegemawokaxe/9254335303.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac6227bc-e64f-4f03-8d94-502792ff1bd4/five_major_functions_of_supervision.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/how_to_install_wansview_camera.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/chatal_band_ringtone_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b92cca0-c760-4bc4-b769-23ffaa1feb24/27744862280.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c4ef1db-47be-4a71-8ab6-c56a02799627/gelenobovaremezewalipise.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/42428707077.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9f6f150-c2f6-4886-ba5c-c8ae33a94a76/fuzixonasibi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7092e24a-798e-4a1d-996e-3a2a5da41e4a/true_metrix_meter_not_accurate.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_off0000f6c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6C0 5552 bytes
SHA-256: fbced0481774911c83a8224ba0fb144e4cdd487b45cf7f254a1ccced4dd91b40
font_01_sfnt_off000109b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109B7 10536 bytes
SHA-256: 4eb0b3202f0196b26b7a532e6ce092b630423f266bbfb6d743c1dc64bf0ab0c4

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