Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8754b930b96e46…

MALICIOUS

PDF

92.2 KB Created: 2021-04-04 20:07:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: b04bd6028238f5a68a7bb3625740fb02 SHA-1: dbf44184bb0fcfedc8f71b0b64c98063d9ecc42b SHA-256: 0e8754b930b96e46ca9855383cd7b73d426a7fc9e568edc2423176bf5e51ac17
186 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious sites. The presence of a specific keyword 'pokemon pearl legendary cheat codes' in an embedded URI indicates a lure to attract clicks. ClamAV and ML classifiers also flagged this PDF as malicious, likely due to its suspicious linking behavior.

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.
  • 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://lozipotod.ru/wix?keyword=pokemon+pearl+legendary+cheat+codes PDF link annotation
    • http://reestr.site/47845722425ozjua.pdfIn PDF document text
    • http://profyhouse.ru/4249988276f26qz.pdfIn PDF document text
    • http://peteferix.mypressonline.com/atharvashirsha_kannada.pdfIn PDF document text
    • http://lnstagram-verifedbadge.com/9167133374021ehj.pdfIn PDF document text
    • http://biolinkus.me/personal_trainer_study_guide5hzne.pdfIn PDF document text
    • http://tertov.xyz/rigowiwovujudtl.pdfIn PDF document text
    • http://laserisesiseno.getenjoyment.net/smaller_illustrator.pdfIn PDF document text
    • https://vezikiga.weebly.com/uploads/1/3/0/7/130739663/6942623.pdfIn PDF document text
    • https://somalinoduka.weebly.com/uploads/1/3/5/3/135392385/3939262.pdfIn PDF document text
    • http://sexafilavu.iblogger.org/groupme_desktop_notifications.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/e775e0b0-a13a-471d-84b2-0b766e37e70b/sato_cl4nx_plus_driver.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79be2142-563f-46c4-a94f-7641dbe88990/belkin_f7d1102_n150_micro_wireless_usb_adapter_driver.pdfIn PDF document text
    • http://jomopizemiz.onlinewebshop.net/nusuxokat.pdfIn PDF document text
    • http://pedirutufojo.rf.gd/korg_volca_sample_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82816d00-ce2a-42b5-b1f7-8eedd6148167/arris_tm822a_modem_speed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb828360-ee21-4f32-9699-99af0fad9893/votabufiti.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_off00012b7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B7F 5656 bytes
SHA-256: fa5a5ed151679ea3215e3b78bfa0db1fef16db766ae572befc28f7fd263cb9e5
font_01_sfnt_off00013e9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E9A 10900 bytes
SHA-256: 76887e0e05e7b4d3fb8e92961a8652fe6ce1f76b6c234712662065b021f42171

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