Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fded48081b42709…

MALICIOUS

PDF

62.4 KB Created: 2021-02-18 20:47:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4e600ea41288aff789847a835f7951a8 SHA-1: 3277ef41f79cff9b2b718281d77e42308177836e SHA-256: 0fded48081b427099935108545a850e4a1ce15ee0ad8d842e611f55471ce9103
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://maypoin.ru/wix?keyword=tik+kik+apk+download PDF link annotation
    • https://cdn.sqhk.co/xenekifa/ji2sBXJ/art_history_through_the_ages_free_download.pdfIn PDF document text
    • https://duparumiwope.weebly.com/uploads/1/3/4/7/134707207/pelijofetejiso.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455645/normal_5fc74b90da3f9.pdfIn PDF document text
    • https://cdn.sqhk.co/remezebona/y3Jgggh/outlier_calculation_boxplot.pdfIn PDF document text
    • http://reduslim-shopufficiale.site/96562100043wzt6s.pdfIn PDF document text
    • https://dazuzoboda.weebly.com/uploads/1/3/4/0/134017564/7169237.pdfIn PDF document text
    • https://cdn.sqhk.co/kawonidoza/f9Cidhd/kim_kardashian_hollywood_cheat_codes_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/58pjbZe/hku_terra_nova.pdfIn PDF document text
    • http://jobs-ingenieur.best/70297095229muyn6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sefogozi.epizy.com/capital_expenditure_control.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/beaver_tails_nutrition_information.pdfIn PDF document text
    • http://danofawo.rf.gd/bimipisiw.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/acids_bases_and_ph_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/95594907934.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_off0000b8bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8BD 4784 bytes
SHA-256: 6ac581354188d817e81ffed16fdfb427d73c9b3b0d1b8b188b9495ad8882318e
font_01_sfnt_off0000c92d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC92D 10488 bytes
SHA-256: 6c82a1a710c16a4d35545a72df2672be6c2b988747dc01b9124094f35beda905