Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f169b7e931c3ec9…

MALICIOUS

PDF

74.2 KB Created: 2021-02-12 22:32:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 00875b7b0261b4ebd54e1f7857ca166e SHA-1: 7008e68396a309a5b9c04e060b6b2285d573ba80 SHA-256: 5f169b7e931c3ec9cd820652a788b3c678c296fde41a20b6599ca6e1d7343376
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://bologen.ru/wb?keyword=layout%20template%20autocad PDF link annotation
    • http://buxosuloxe.iblogger.org/rirufopajumujugax.pdfIn PDF document text
    • http://arenda-comp.space/lapazifofazuxijabogisa5u87y.pdfIn PDF document text
    • http://sigipotewal.22web.org/how_to_write_a_digital_forensic_report.pdfIn PDF document text
    • https://girawosanisab.weebly.com/uploads/1/3/0/7/130740609/kisodegexa_dinekolober_nisam_tusugunimurif.pdfIn PDF document text
    • https://xulakuvoloja.weebly.com/uploads/1/3/0/8/130813987/90dae.pdfIn PDF document text
    • https://forugizatufuru.weebly.com/uploads/1/3/1/4/131410167/ba53ada10b4c072.pdfIn PDF document text
    • http://borezopesane.22web.org/2270861570.pdfIn PDF document text
    • https://nuniladolu.weebly.com/uploads/1/3/0/7/130775245/retirojamuxufanikid.pdfIn PDF document text
    • https://sajulivos.weebly.com/uploads/1/3/1/1/131164476/nusufoke.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gawekavadave.epizy.com/84682483936.pdfIn PDF document text
    • http://kikodanaso.epizy.com/jemez_canyon_reservoir_fishing_report.pdfIn PDF document text
    • http://kevusej.epizy.com/84363870178.pdfIn PDF document text
    • http://lexuwusifo.epizy.com/elliptical_machine_reviews_consumer_reports.pdfIn PDF document text
    • http://kagufunoziwezu.epizy.com/66200918211.pdfIn PDF document text
    • http://linakagiwabofa.epizy.com/brother_in_arms_3_apk_mod_offline.pdfIn PDF document text
    • http://temoweboriti.rf.gd/godiva_chocolate_box_guide.pdfIn PDF document text
    • http://robefopatobut.epizy.com/73825712477.pdfIn PDF document text
    • http://totaraxidob.rf.gd/edexcel_gcse_history_9-_1_revision_guide.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_off0000e7c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C6 4988 bytes
SHA-256: 71d243783477976e5bae3c9bdc22f553c30d9415521a76408b97c026219c52b8
font_01_sfnt_off0000f8ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BA 10312 bytes
SHA-256: 689670dc0e742a9bb9d45473305c59f151b36543fb07983d43ee941e196ff4c1