Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c4b7700fbad762a…

MALICIOUS

PDF

76.6 KB Created: 2021-03-29 20:35:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2a28dd2878e6bbff9edaedaf8fcf574f SHA-1: 65ad3a25ad5d6015cd8f21c9163c8dc3d775ff18 SHA-256: 2c4b7700fbad762a0fd946808bc8db56fe4b56c760214a6ea2cb31c1e2709d3f
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a PDF link farm. One of the primary URLs, https://fokemale.ru/strik?utm_term=falcon+bms+4.35, is suspicious and likely part of a phishing or malware distribution scheme. ClamAV also detected this file as Pdf.Phishing.Trojan, further supporting its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://fokemale.ru/strik?utm_term=falcon+bms+4.35 PDF link annotation
    • https://totofogekof.weebly.com/uploads/1/3/5/3/135327731/zulinulib.pdfIn PDF document text
    • http://bumadodari.iblogger.org/kitodakotolujusiwube.pdfIn PDF document text
    • http://datifuxevewa.22web.org/zaduta.pdfIn PDF document text
    • https://cdn.sqhk.co/baxijaxazixi/fvbgdge/mindshare_ad_agency_nyc.pdfIn PDF document text
    • https://sutiwipuxepol.weebly.com/uploads/1/3/4/5/134517417/fiwevusig.pdfIn PDF document text
    • https://womomoko.weebly.com/uploads/1/3/4/8/134848640/livadelab.pdfIn PDF document text
    • https://cdn.sqhk.co/kobewudojuvo/ibgiyMk/luck_movie_songs_mp3_download_muskurahat._com.pdfIn PDF document text
    • https://cdn.sqhk.co/bivosemubo/gdnjdgd/27375712026.pdfIn PDF document text
    • https://ganalazukomej.weebly.com/uploads/1/3/4/7/134714395/faxexana_pidobazadefi_velogem_kizuwakawebe.pdfIn PDF document text
    • https://cdn.sqhk.co/jategumeb/1VMgdG8/change_my_voicemail_to_english.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/daxemo/29934313078.pdfIn PDF document text
    • http://nuvujudidasutem.rf.gd/ailerons_font_family_free.pdfIn PDF document text
    • http://besipopi.epizy.com/mepug.pdfIn PDF document text
    • https://s3.amazonaws.com/memobofilenabon/ponakopureziguxiluvud.pdfIn PDF document text
    • http://pigibotokaper.epizy.com/baby_birth_announcement_photoshop_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/susabidapepowu.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/sunawunuse.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/clash_of_clans_free_apkpure.pdfIn PDF document text
    • http://xaxotuk.epizy.com/business_report_template_free.pdfIn PDF document text
    • http://jagazuzigi.epizy.com/vernier_caliper_inch_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kosamupim/caxton_legal_centre_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/video_wayang_golek_cepot_bobodoran_full.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_off0000eb93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB93 5352 bytes
SHA-256: bbca366b9b72690249242ea7a8c9468a0c23bdab1288598485983be50e55de3f
font_01_sfnt_off0000fdc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDC4 11168 bytes
SHA-256: 6c8b85fb2e876411a311abbc60a67810e4e2dc355e348add08dafbe40e4bd358

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