Malicious PDF — malware analysis report

Static analysis result for SHA-256 8100516fb5a770df…

MALICIOUS

PDF

89.8 KB Created: 2021-03-11 08:16:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 38f322754baf8595af13c25388be3067 SHA-1: c15c879a8a5ef1e2d00a04d2021d421fc3abb696 SHA-256: 8100516fb5a770df8ec815dcad3324b3a1f464b28027ee6fa95af87b93c1c750
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including ML and ClamAV, indicating malicious intent. It contains a large number of embedded URLs, many pointing to disposable domains, suggesting a link farm designed to redirect users to potentially harmful sites. The presence of external URIs and the ML classification strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://zajinet.ru/wix?keyword=garmin+fenix+5x+manual PDF link annotation
    • http://rigudozefogo.mypressonline.com/nufafema.pdfIn PDF document text
    • http://kunujunekedi.mygamesonline.org/duties_and_responsibilities_of_an_operations_manager_in_a_travel_agency.pdfIn PDF document text
    • http://parrrtner.xyz/informant_meaning_synonymc94uo.pdfIn PDF document text
    • https://cdn.sqhk.co/zadoweferoxe/hfgjahg/64507015116.pdfIn PDF document text
    • http://xoxinusenavi.66ghz.com/kojawilomagafukeveles.pdfIn PDF document text
    • http://lnstagaram-verifiedbadges-from.com/petivixft1.pdfIn PDF document text
    • http://nazawate.iblogger.org/16637365791.pdfIn PDF document text
    • https://cdn.sqhk.co/rigizisojix/KwwQjgq/flip_skater_mod_apk.pdfIn PDF document text
    • http://jiramowujunobo.22web.org/17568246170.pdfIn PDF document text
    • http://thrivewebs.com/difference_between_discipline_and_punishmentkprsx.pdfIn PDF document text
    • https://cdn.sqhk.co/bumogebiz/iheCgek/black_friday_2019_deals_apple_tv.pdfIn PDF document text
    • https://cdn.sqhk.co/somisafeg/adjivvQ/defender_1997_price.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vorasatijede.rf.gd/sukapeguvorirafowe.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/iodometric_titration_with_sodium_thiosulfate_lab_report.pdfIn PDF document text
    • http://zakefuki.myartsonline.com/vijakulakobabexu.pdfIn PDF document text
    • http://sixategajufob.epizy.com/disewetebusarogobaxelibes.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/the_secret_teachings_of_the_ages.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/petrovietnam_power_annual_report.pdfIn PDF document text
    • http://pudosuvosav.atwebpages.com/kinetico_water_softener_price_canada.pdfIn PDF document text
    • http://padegijogul.atwebpages.com/milton_areopagitica.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/52585609256.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/crystal_reports_redistributable_2005.pdfIn PDF document text
    • http://godubaxedija.rf.gd/fakarezufuw.pdfIn PDF document text
    • http://nupakavidowux.epizy.com/79931071352.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11621 4956 bytes
SHA-256: d563e420468420183dd421aab59b6b878d4fb02d0d95a764451ea5bb52761145
font_01_sfnt_off000126f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126F3 2208 bytes
SHA-256: 6a226449540ebe615c6e963bb91c9a0babfa9099349c4cad0690fdca1341b34d
font_02_sfnt_off0001307f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1307F 12356 bytes
SHA-256: a011418314e33486343eaec7c635ea1400d5ca56a4e11df9aabc18e1034b4bd0

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