Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc71344721fa9711…

MALICIOUS

PDF

96.7 KB Created: 2021-03-12 10:59:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: bd26ce3b98a750a67f5d8d69978c530f SHA-1: 25f9b4452fa0f87125850464aa5218a31672b246 SHA-256: bc71344721fa9711aea163bc0f1eac59f1fbf226ae083dff2fe3c1f3bae2c9f5
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. The document contains an embedded URI that redirects to a link farm, which is a common tactic for phishing and malware distribution. The presence of multiple external URIs and the ML detection strongly suggest malicious intent, likely to exploit vulnerabilities or trick the user into downloading a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://dugedepap.ru/wix?keyword=the+technomancer+mission+guide PDF link annotation
    • http://nonowun.mywebcommunity.org/bank_of_america_statement.pdfIn PDF document text
    • http://mesanezedid.mypressonline.com/angiospermas_y_gimnospermas.pdfIn PDF document text
    • http://fakabegapufiri.22web.org/bives.pdfIn PDF document text
    • http://winatesef.sportsontheweb.net/samsung_un55mu6290fxza_power_supply.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sanaxumidi.epizy.com/853949684.pdfIn PDF document text
    • http://vewajelawukos.rf.gd/59015258679.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/684eae4f-e357-41dc-ba9d-85c562d4a3ce/edenpure_scalerid_reviews.pdfIn PDF document text
    • https://c46c713f-5e69-4c64-aad4-d86f29440f76.filesusr.com/ugd/957c7b_e242dc12e7654c53abce237b3989ee36.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8df3e43b-3553-40d2-ac2d-d9b428126b82/osha_10_hour_construction_industry_outreach.pdfIn PDF document text
    • https://ebc1add8-0b9d-418e-9e4a-1e287827e933.filesusr.com/ugd/ab63e3_531d7242680e41f48ed3792f84d89ade.pdf?index=trueIn PDF document text
    • http://liraperuwuw.atwebpages.com/pokemon_soul_silver_nuzlocke_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/kedawin.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/facebook_videos_on_iphone.pdfIn PDF document text
    • http://puribobelumisi.rf.gd/xozujovimejolozizivufareg.pdfIn PDF document text
    • https://e966359d-176b-477a-9ad9-c314bea94227.filesusr.com/ugd/fa6f14_8b160c9997f34ec485ea58cb99d35933.pdf?index=trueIn PDF document text
    • https://e6e31949-ba74-43ae-8e0c-2243355e89fd.filesusr.com/ugd/69e259_c52f7d7aafac42e7b974bead68b8f82a.pdf?index=trueIn PDF document text
    • https://f6ce3cfb-f922-470c-9e0e-eaf724001b0e.filesusr.com/ugd/defcb2_949eb25fa83f4eec9f0ff373ff6cec75.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/0064ec65-a1ca-4124-b5c5-26818cb38f87/ketije.pdfIn PDF document text
    • http://vubelifijam.atwebpages.com/274457123.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf960568-ffa3-4785-b564-bcef219a8de0/42371950696.pdfIn PDF document text
    • http://xijejuvi.myartsonline.com/what_is_the_theme_of_antigone_act_i_ode_ii.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_off00013f91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F91 5272 bytes
SHA-256: 2fc33505399f671f60e95cf5c3d74c5614c6912339b8edb286277b15e58eb9bd
font_01_sfnt_off0001514b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1514B 10716 bytes
SHA-256: ddb43a76024fd1b35dbbbb7a5c3e4cc9dfb1ddb136e85c360bf34b5807bcdd6e

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