Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2fdd7b87838b17d…

MALICIOUS

PDF

77.3 KB Created: 2021-04-22 09:13:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4c4ecfe5d3aa46453cf0e420795f1663 SHA-1: e3c7a5622b6a5c3db0073d5589788f20ce30a2f1 SHA-256: c2fdd7b87838b17dea19cc54a5a5bf4d84ec3351b3559227ab2c177557a98c14
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 0.9997

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://crophysi.ru/strik?utm_term=toyota+camry+se+2018+tire+price PDF link annotation
    • https://cdn.sqhk.co/komajekolino/hft1ih2/welatejezusevubiwusivakiz.pdfIn PDF document text
    • http://ihsteam.ru/pretty_little_liars_theme_song_pianooese6.pdfIn PDF document text
    • https://cdn.sqhk.co/parabeset/dihhihe/fr_legends_2020_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/zoburawava/i842ygb/rtc_transit_reno.pdfIn PDF document text
    • http://zatoxuvisovapuf.sportsontheweb.net/41160647196.pdfIn PDF document text
    • http://shtampshop.ru/allahmme_ente_rabbi_la_ilahe_illa_enteu2k3s.pdfIn PDF document text
    • https://cdn.sqhk.co/jalosemuv/0PmjbDx/post_it_flex_write_surface_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/hgtgdib/spinner_blade_ion_review.pdfIn PDF document text
    • http://qrastenmap.online/werewolf_profile_picskgfsr.pdfIn PDF document text
    • http://rozujed.sportsontheweb.net/skin_burning_sensation_on_lower_legs.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvuvidova/fgcfJ1R/capsaicin_benefits_for_skin.pdfIn PDF document text
    • http://ig-soft-team.com/how_to_draw_cartoon_face_in_photoshopbh1i1.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/c744ec6b-f44c-4dcf-9179-ff0f7f933953/lineamientos_de_los_consejos_escolares_de_participacion_social_2019.pdfIn PDF document text
    • http://sefokirof.onlinewebshop.net/dedigus.pdfIn PDF document text
    • http://xemunebo.atwebpages.com/68785526770.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86e86410-ad77-49d5-8226-21746a8ea0f6/yamaha_yas_101_manual_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/41618911231.pdfIn PDF document text
    • https://s3.amazonaws.com/netinuwa/guvawisunakufodap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13cff752-4305-4020-b96e-98a89fd4f3f2/your_first_year_in_network_marketing_audiobook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f534d59-051a-44f5-bcdb-2f9ec8fa0a59/viximopiv.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_off0000eee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE1 5616 bytes
SHA-256: 009e8eeffe88dbdcd4d9923b580ae9614b4321ca8cc6ba15c0d0ab9e87f47d08
font_01_sfnt_off000101ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101EE 11260 bytes
SHA-256: 46f229733d8cdc0500bf3f2f1980208126920df2322187e9a432ec97f7a2a30c

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