Malicious PDF — malware analysis report

Static analysis result for SHA-256 a42969b5bfd7656e…

MALICIOUS

PDF

67.7 KB Created: 2021-01-24 20:50:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-31
MD5: 01d3d5a3c85560c951c9c54848d60524 SHA-1: 2f20188933a30a095f66d3bcd44190504554e93b SHA-256: a42969b5bfd7656e57a59bd7b260e01e48e11752f411bfac6fb5cb5d209701dc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffnew.ru/123?utm_term=usc+career+center+events PDF link annotation
    • http://itawomen.fun/fajigapokusaviwutedizz1z0.pdfIn PDF document text
    • http://onsideball.info/gedisanumagetuxoxomelewopthcm.pdfIn PDF document text
    • https://cdn.sqhk.co/libegavezu/N5iigfG/jikinenedusapulu.pdfIn PDF document text
    • http://selectgetc.top/iphone_enable_assistive_touch_without_home_buttonjkm64.pdfIn PDF document text
    • http://mafuditovu.iblogger.org/wuvepemujokomipopewusolo.pdfIn PDF document text
    • https://cdn.sqhk.co/jedugifaxido/gxajdjc/70968706127.pdfIn PDF document text
    • http://bionatur.space/octopus_watch_alternativeav82v.pdfIn PDF document text
    • https://cdn.sqhk.co/mozedizupi/OhgOgds/nekolexuki.pdfIn PDF document text
    • https://cdn.sqhk.co/tofegejij/jheghhd/custom_stickers_made_in_usa.pdfIn PDF document text
    • https://cdn.sqhk.co/kikolibub/KQndRjg/84353327159.pdfIn PDF document text
    • http://zebrait.fun/outlier_algebra_definition1s8vo.pdfIn PDF document text
    • https://cdn.sqhk.co/pofaxiniraz/ic0Hwek/bugsy_and_meyers_seafood_tower.pdfIn PDF document text
    • http://pemowovamig.iblogger.org/amiduos_2_lollipop_pro.pdfIn PDF document text
    • http://smcjd.com/fininuzex6pac.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wuwomuwudawim.epizy.com/medical_hematology_book.pdfIn PDF document text
    • http://pizoxuwa.epizy.com/digestive_system_crossword_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/fivudojiluko.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/zivomuzefiluxiduwulo.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_off0000cc9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC9D 4812 bytes
SHA-256: a837ad1ba9a032efb7ad4463e9e4d6b65eba838bfa91b857c76b6ddd14f404bb
font_01_sfnt_off0000dd11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD11 10744 bytes
SHA-256: ca6dc2bfd8e68f90fd1ac01d27d2cb5b3e93da84befbff9bd3f2dfa35d8813cc