Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cabee44536f1ba0…

MALICIOUS

PDF

71.8 KB Created: 2021-02-24 07:16:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3959ed57f152716dbcfce7ca47dfd53c SHA-1: 389fe0cf76b26a869bcc5b0f9e3b03a0bb428cd4 SHA-256: 3cabee44536f1ba037a7feeda51e4662c8668e5ff8d1dfce392d45c6d356efb1
186 Risk Score

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://bologen.ru/wix?keyword=a+guide+to+the+good+life+audiobook+download PDF link annotation
    • https://likunemotiro.weebly.com/uploads/1/3/5/2/135299998/bubasofebero.pdfIn PDF document text
    • https://cdn.sqhk.co/zarepowake/hcK0ke9/zusemuzu.pdfIn PDF document text
    • https://cdn.sqhk.co/jizuxadif/3Bb7qg0/enable_windows_defender_application_guard_gpo.pdfIn PDF document text
    • https://cdn.sqhk.co/wunokebewoz/hgK5Nic/83352388196.pdfIn PDF document text
    • https://cdn.sqhk.co/fifapupifig/is2jjjh/xumijikulikaba.pdfIn PDF document text
    • https://cdn.sqhk.co/buzosefif/bVhciqs/good_murder_mystery_books_for_young_adults.pdfIn PDF document text
    • https://bugajujifupub.weebly.com/uploads/1/3/4/8/134894919/fulizuxujeb.pdfIn PDF document text
    • https://cdn.sqhk.co/zokuwagopole/pVjdzJE/candy_jump_record.pdfIn PDF document text
    • http://aicberg.net/star_wars_ahsokaiup74.pdfIn PDF document text
    • https://cdn.sqhk.co/ribovonubod/Vibhjgh/redream_emulator_premium_free.pdfIn PDF document text
    • http://diziretojiz.iblogger.org/confidential_informant_list_mn.pdfIn PDF document text
    • https://cdn.sqhk.co/xonudutixova/aFZ0haL/subway_simulator_prague_metro_apk_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://terezeso.epizy.com/63164397390.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/skil_circular_saw_5280-01.pdfIn PDF document text
    • http://woxozizelisudu.epizy.com/bts_world_ost_album_zip.pdfIn PDF document text
    • http://mivajale.rf.gd/the_anatomy_of_evil_book_review.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/12_grain_bagel_tim_hortons_nutrition_information.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/nanekona.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_off0000dd0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD0C 5180 bytes
SHA-256: e7dee9978132244094e1ecf524edb10b5b981f8eda10f1b1f65cbd18b2a48b46
font_01_sfnt_off0000eebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEBF 10300 bytes
SHA-256: e54bd766e44ed0e109d997750ad49669cbcc2284cedf4cf1c6b568ac7f662018