Malicious PDF — malware analysis report

Static analysis result for SHA-256 74a0efc795d85bfe…

MALICIOUS

PDF

62.6 KB Created: 2021-02-06 18:31:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 9aefb3901362d4b99016a70055f17575 SHA-1: e836cc979627ec742a565aefda02dfec1b93578d SHA-256: 74a0efc795d85bfe33d8e3eafd1432c83a9a8c154ca47fcf1e0bb323fcb0d63f
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://baarspo.ru/aws?utm_term=cut+and+paste+butterfly+life+cycle+worksheet PDF link annotation
    • http://fopesekebamit.22web.org/memento_mori_full_movie.pdfIn PDF document text
    • https://nomalepizu.weebly.com/uploads/1/3/1/3/131398516/niwituj.pdfIn PDF document text
    • https://muzifadisuluso.weebly.com/uploads/1/3/5/3/135347683/7139594.pdfIn PDF document text
    • https://vekerarefatada.weebly.com/uploads/1/3/4/8/134868636/dejur_poberavezixiv_kemobode_zagesorirufube.pdfIn PDF document text
    • https://lolorude.weebly.com/uploads/1/3/0/7/130775760/1362700.pdfIn PDF document text
    • http://goguduve.iblogger.org/28288330490.pdfIn PDF document text
    • http://difavusimope.iblogger.org/garden_grove_weather_report.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://roxadib.epizy.com/53584235643.pdfIn PDF document text
    • http://sidegiri.epizy.com/28309007632.pdfIn PDF document text
    • http://wuxodevidupibe.epizy.com/23501220714.pdfIn PDF document text
    • http://romotugujelit.rf.gd/kirepaparo.pdfIn PDF document text
    • http://risitikavaj.rf.gd/jambox_mini_owners_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/48879295612.pdfIn PDF document text
    • http://puwekaxaxowiza.epizy.com/wedding_anniversary_wishes_images_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/583035293.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_off0000b970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB970 5548 bytes
SHA-256: f456c545d66fdb37c2ac3dce0b3cb6783628ff40b366396b416da15ac81c3d6b
font_01_sfnt_off0000cc54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC54 9740 bytes
SHA-256: 0c1c6ddd83a492330bbaf4732120eec37a93cade2b2e4216007ec53697a36f42