Malicious PDF — malware analysis report

Static analysis result for SHA-256 1206edd693e132f4…

MALICIOUS

PDF

81.9 KB Created: 2021-03-17 21:03:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 2fc7ddaa30aca71bf87468d1b979ecf0 SHA-1: e2bc0ec6bad667ce2ae8b70f6bea5a690a92e871 SHA-256: 1206edd693e132f48eea9e17edd91555c2e9727183254799c6aea2848a94db4b
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=c-span%2527s+2012+electoral+college+map+activity+answers PDF link annotation
    • http://talajifit.mywebcommunity.org/xupojiduxemezoda.pdfIn PDF document text
    • http://wubujonil.getenjoyment.net/how_to_re_sync_honeywell_wireless_thermostat.pdfIn PDF document text
    • http://lebedugipul.mywebcommunity.org/hotpoint_self_cleaning_oven_symbol.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455381/normal_5fe5e79d29fdd.pdfIn PDF document text
    • http://fewafef.iblogger.org/lagu_charlie_puth_river.pdfIn PDF document text
    • http://puzexijabin.mypressonline.com/death_note_lyrics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444370/normal_5fffd93526ee5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wofevumovef.epizy.com/the_shining_character_analysis_jack.pdfIn PDF document text
    • http://mitigim.rf.gd/vazofugifebi.pdfIn PDF document text
    • http://xugivazule.rf.gd/49366787499.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/c._g._i_full_form.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/dakesorafumomibu.pdfIn PDF document text
    • http://topenogu.epizy.com/9190175129.pdfIn PDF document text
    • http://vejebuta.rf.gd/bolejunabapa.pdfIn PDF document text
    • http://gafigap.epizy.com/delonghi_toaster_oven_instruction_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/83843158438.pdfIn PDF document text
    • http://pusukobu.epizy.com/61565243265.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7744372a-f4dc-4cbf-a694-ee66c591c094/bisuvidolow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8183e99b-c739-48b6-9d7f-1727da8a8164/34904507798.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/kitchenaid_blender_ultra_power_manual.pdfIn PDF document text
    • http://pulaxemafuzizum.epizy.com/vertigo_full_movie_free.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_off00010096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10096 5804 bytes
SHA-256: 18846c597fdfb00efad92b71d1aa39bb3d27a462856aea3ae9f1fb800d5ec10d
font_01_sfnt_off00011470.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11470 11048 bytes
SHA-256: 427733f8642a04f5bf10024caa645d9e3ff5edfaf5105529c4b1af004f66204a

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