Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd80df0454fe1e33…

MALICIOUS

PDF

79.6 KB Created: 2021-05-11 13:24:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 4f24fca474088cd095ed5f8acddbec09 SHA-1: e9c98f28eb26577422fcf81f09e0fd77958173ab SHA-256: dd80df0454fe1e339d4b8fb8fe4816c2a59710001d6561c0702176f12f8d0b23
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a lure related to 'California adventure map 2001' and includes a high-risk heuristic for an SEO redirector link. The primary malicious URL identified is https://lozipotod.ru/strik?utm_term=california+adventure+map+2001, which is likely used to redirect the user to a phishing page or download further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/strik?utm_term=california+adventure+map+2001 PDF link annotation
    • http://kipededevidabun.iblogger.org/biochemical_analysis_of_medicinal_plants.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375095/normal_5fdb1517ca65f.pdfIn PDF document text
    • https://cdn.sqhk.co/zovitamojim/hef5jiQ/34251495558.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465015/normal_6044d6b8a3cd2.pdfIn PDF document text
    • http://sesapoleva.22web.org/acceptance_letter_format_for_teacher.pdfIn PDF document text
    • https://cdn.sqhk.co/bofogarabu/ggiggib/assessment_tools_for_special_education_students.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/gozilum/vagukirobefo.pdfIn PDF document text
    • http://pexoxusipatesu.epizy.com/tixupi.pdfIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/new_antimalarial_drugs.pdfIn PDF document text
    • https://s3.amazonaws.com/nitirew/can_the_dash_diet_lower_blood_pressure.pdfIn PDF document text
    • http://sidubavomiwur.rf.gd/residential_building_plan_drawing.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/critical_review_of_a_qualitative_research_paper.pdfIn PDF document text
    • http://dipimov.epizy.com/tovosodobolezuwomulodojej.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/63687508333.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/24907561828.pdfIn PDF document text
    • https://s3.amazonaws.com/nasitevu/sitomewiki.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/34460380401.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/mettre_une_boite_mail_icloud_sur_android.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/61643551678.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/fluke_1520_megohmmeter.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/mimosa_cairo_gazebo_instruction_manual.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECCB 5300 bytes
SHA-256: 8b92d40d805c3f65a3a208cb35a2eabb18816df071b62e19326b8a4d7dfe64c9
font_01_sfnt_off0000fec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEC5 10584 bytes
SHA-256: 7009eb372e489de07766317ba5106b2c80e5495bdc2091642e18734fb81e786e
font_02_sfnt_off0001232a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1232A 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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