Malicious PDF — malware analysis report

Static analysis result for SHA-256 67c25fb44b011e78…

MALICIOUS

PDF

77.7 KB Created: 2021-06-10 01:31:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 692edbcd364cca6199edb450cc7405a3 SHA-1: 3d47394645e374b6ba3ccd980671e868b74be48f SHA-256: 67c25fb44b011e78c238bbd1c43714052d57faa2425daf95fceac8b97ab7f7d8
164 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are SEO-optimized, suggesting a link farm designed to lure users to malicious content. The presence of the URL 'https://xajibur.ru/123?utm_term=cadillacs+and+dinosaurs+game+for+pc' further supports this, as it points to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

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 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.
  • 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://xajibur.ru/123?utm_term=cadillacs+and+dinosaurs+game+for+pc PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481695/normal_600e01a894d35.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403824/normal_5fee503771ab6.pdfIn PDF document text
    • https://wasexakenisopi.weebly.com/uploads/1/3/5/9/135982815/jopofimoxolu_laperaxemosisix_kaninujop_dosumaledejizop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501206/normal_6045120778475.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411218/normal_6064e91d4e054.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408172/normal_602e01e1c2865.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410694/normal_6063d7584f972.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370764/normal_6035250ebb104.pdfIn PDF document text
    • https://wepejusekubikur.weebly.com/uploads/1/3/4/4/134441987/gerovigo-midawunaxeguvo-soluwobenum.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/37e262a3-29a4-4b49-8e49-9ac150b7cd67/how_to_use_miroir_projector_with_iphone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0912d90b-373e-4d7a-959d-81a07a58d76e/tovov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df18f956-dda3-460b-82f4-5f0aff320e6f/balance_de_energa_con_reaccin_qumica_ejercicios_resueltos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70f08906-03f6-4a8c-acdb-db4ddf058727/what_are_the_rules_for_playing_darts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/016f4d00-6c41-412d-96a7-dc32c9d328e9/sufumegatedolatebefivefiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/380ddb11-1cec-4eba-aba2-9dff0c1505c5/sony_sacs9_10-inch_active_subwoofer_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46f2c4f6-a1e4-44f6-893d-a5cd96e21639/30493148912.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bbf372b-237b-420d-9097-d0c98daebd3a/28856810653.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43f8ee57-1dc4-4e19-abe6-920bd49ea92a/if_2_events_are_mutually_exclusive_they_cannot_be_independent.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_off0000f1b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B8 5380 bytes
SHA-256: 3f6676f3eee1ff1658ba867fd1c83870d7e39616bc54a72d5c69454c138adc78
font_01_sfnt_off000103eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103EB 10912 bytes
SHA-256: bc49cb151b25e293002d7c38dac705cc721572b92e872cde04f5a640407bac07

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