Malicious PDF — malware analysis report

Static analysis result for SHA-256 e118ab474162f973…

MALICIOUS

PDF

75.4 KB Created: 2021-03-29 11:22:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 8143115845bbd4af2e828241abb38752 SHA-1: 84c28f4240566c32f0f6d2cc0f4f67357fed0d66 SHA-256: e118ab474162f97397ce0bee76198fb0e3b4ce33ed8d793ec57d96ccadba565d
134 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. It contains numerous external URIs pointing to disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the ML detection strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://lozipotod.ru/wix?keyword=lee+county+powerschool PDF link annotation
    • http://sodamasagu.66ghz.com/meririlonurusedob.pdfIn PDF document text
    • http://everydayy.fun/what_is_sepsis_2_criteria0etrx.pdfIn PDF document text
    • http://mailedflkf.site/best_android_app_for_graphic_designingjdl6s.pdfIn PDF document text
    • http://rezisugamufi.22web.org/73611498345.pdfIn PDF document text
    • http://graatorama.fun/rafubaseg9716.pdfIn PDF document text
    • http://pe50off.info/31151887295xgozt.pdfIn PDF document text
    • http://prosucre.pro/865457621601yhhd.pdfIn PDF document text
    • http://dawexefif.getenjoyment.net/40206935619.pdfIn PDF document text
    • http://ru-1.casa/993993006044mb1v.pdfIn PDF document text
    • http://choosenews.space/como_instalar_appvalley_en_androidcalqy.pdfIn PDF document text
    • http://dronextactical.xyz/how_to_build-up_vocabulary_for_gre4m8mp.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/6e04975f-47d3-4770-b0c2-53298242b133/tikulenuzigibagepiso.pdfIn PDF document text
    • http://rixupod.rf.gd/baldur_s_gate_descent_to_avernus.pdfIn PDF document text
    • http://geforagegi.atwebpages.com/zofabemununijadivujev.pdfIn PDF document text
    • http://vajitefafuxuz.epizy.com/pdf_sociologia_para_principiantes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8fc8fb4-7408-4ad2-b735-3921b60233b3/7761722808.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80e49eb8-e061-4d6f-9766-c6d9d2c0eace/32697932368.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bafc9e5f-2b1a-4c1a-bac3-6f987c38e567/lemulezexila.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_off0000e89b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE89B 4948 bytes
SHA-256: 514d04a13cd4078ba5c1fbbe8de169085d340ba4f6e108e853405f4fb6cd06c7
font_01_sfnt_off0000f98d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF98D 11912 bytes
SHA-256: de6dc563f95b45a7f0dae0545b335883b8c571dec90fafa3079b8eb3d2f0afb2

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