Malicious PDF — malware analysis report

Static analysis result for SHA-256 93579290e315f81e…

MALICIOUS

PDF

82.3 KB Created: 2021-05-16 16:12:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2d0a36f62575b6068901aae589a07227 SHA-1: 96330aae3d642b3e22ea10ec62c65b4c7209d4d1 SHA-256: 93579290e315f81e48c7ac91b09fbcdb4868a727f4d129236298fde6665b9ee0
126 Risk Score

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/strik?utm_term=how+to+clean+a+rinnai+water+heater PDF link annotation
    • http://cookwellbakewell.com/sosezona3965r.pdfIn PDF document text
    • http://zugemuvireri.22web.org/moss_adams_pediatric_cardiology.pdfIn PDF document text
    • https://xanulosuz.weebly.com/uploads/1/3/4/6/134659124/gokataxura.pdfIn PDF document text
    • https://babapijolirex.weebly.com/uploads/1/3/1/4/131409508/e5e1f9b4462b20.pdfIn PDF document text
    • http://info-pages.ru/pugalodibapibizojelabuecvzk.pdfIn PDF document text
    • http://bbbbbbbbeeee.space/a_bad_case_of_stripes_comprehension_activities1qr7y.pdfIn PDF document text
    • http://thedopemarketing.com/28068774524g6vqo.pdfIn PDF document text
    • http://doorstepcomputers.com/wuwafuvupusidirodafinge8d.pdfIn PDF document text
    • http://arenda-comp.space/mission_mangal_full_movie_magnet_linkwh0iu.pdfIn PDF document text
    • http://uablog.website/monstrous_synonyms_enormous13lyk.pdfIn PDF document text
    • https://kapexuzavum.weebly.com/uploads/1/3/4/6/134691047/dapeludatusewirilaz.pdfIn PDF document text
    • http://migerov.xyz/deploy_full_stack_react_app_to_herokup93se.pdfIn PDF document text
    • https://vezinamitin.weebly.com/uploads/1/3/5/9/135984824/kesulogoma.pdfIn PDF document text
    • http://zokugorevat.mywebcommunity.org/fiwakuzobolo.pdfIn PDF document text
    • http://runojiwum.getenjoyment.net/zumirubujobuvikipi.pdfIn PDF document text
    • http://autolombardpro.ru/43298408748pd3oi.pdfIn PDF document text
    • http://zojesawusiniw.22web.org/senoravitalasezapuluwi.pdfIn PDF document text
    • https://wabaxudazisivi.weebly.com/uploads/1/3/3/9/133986682/5746813.pdfIn PDF document text
    • https://towizitubozabo.weebly.com/uploads/1/3/5/4/135400713/fekegimolizij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://divifafapinuk.rf.gd/columbus_ohio_traffic_crash_reports.pdfIn PDF document text
    • http://lisiguzaxupego.epizy.com/basic_house_wiring_rules.pdfIn PDF document text
    • http://gegenig.epizy.com/31641793692.pdfIn PDF document text
    • http://nunavaxukozu.onlinewebshop.net/90819686956.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001081b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1081B 4764 bytes
SHA-256: 831b02e4fa08a9dca6a2a53af602b55e93dc1cf100d5082369e4d92a7f7c03fe
font_01_sfnt_off00011855.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11855 10412 bytes
SHA-256: 9ea8e5641c392fde685ea3e3aca25049be905b027cd1e18c6e437ff528123a78

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