Malicious PDF — malware analysis report

Static analysis result for SHA-256 39ad1d466fc62471…

MALICIOUS

PDF

66.1 KB Created: 2021-03-10 11:40:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d462f3bff8613dd16d6d245318d0cece SHA-1: b85463e8239e569212fed75883a4a1bb740f6eff SHA-256: 39ad1d466fc6247156fb846751cac486c0d96d1f22320f41d74c15481e08a15c
126 Risk Score

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
  • 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://dugedepap.ru/wix?keyword=note+taking+worksheet+waves+section+1+answers PDF link annotation
    • https://cdn.sqhk.co/dakuwuwuzije/jhIAEKQ/parkour_stickman_race_game_apk.pdfIn PDF document text
    • https://binigikuvoloxog.weebly.com/uploads/1/3/5/3/135332024/0aac499cca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381294/normal_5fdeab684104d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384046/normal_601441ad2171d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484169/normal_602fa3d0c1001.pdfIn PDF document text
    • https://bumobuzeki.weebly.com/uploads/1/3/4/4/134477779/nixuwajenoji.pdfIn PDF document text
    • https://cdn.sqhk.co/zuronenom/jejbjbl/jadifure.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490370/normal_5fe19bed1db7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467975/normal_6041a66770cd2.pdfIn PDF document text
    • https://jafipununevov.weebly.com/uploads/1/3/0/8/130814040/7087284.pdfIn PDF document text
    • http://pabukelib.66ghz.com/jimopuzuso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393018/normal_6031f782191e0.pdfIn PDF document text
    • https://cdn.sqhk.co/nujudemugipi/ibeOkid/download_game_nfs_heat_studio_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/gurudulep/hjukiaR/vodafone_yanimda_neden_bedava_internet_vermiyor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412396/normal_601aa80e45717.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402948/normal_5fc82c8158cd7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fakoxogotavure.epizy.com/best_weight_training_program_for_runners.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/nurubizokelitefobutuxuj.pdfIn PDF document text
    • http://mutupoda.rf.gd/37693459310.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/resume_templates_for_copywriters.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/encyclopedia_of_science_projects_free.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_off0000c7ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7EE 5268 bytes
SHA-256: 4799ffc8e1ace319bc0c1a843a0b27c3e6ad2c854590c8d648b2019975e8f084
font_01_sfnt_off0000d9fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9FC 9512 bytes
SHA-256: 0ee516e06c69721547d986000bac80bed6134e2c037bf795c3cec249eccb4f89

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