Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3298cffe4d031f8…

MALICIOUS

PDF

66.6 KB Created: 2020-12-04 23:44:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 8e31eab5983f6add6d45c1a80d1b0967 SHA-1: 080d72cec618d7c0db444081c4ac8834266fd83c SHA-256: d3298cffe4d031f899f5dbadcce91a8984cd861fab84d1d6a48939a602b677cb
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ggtraff.ru/aws?utm_term=geographic%252F+utm+coordinate+converter In PDF document text
    • https://gosikemimikivum.weebly.com/uploads/1/3/4/6/134674661/b596ca29f2.pdfIn PDF document text
    • https://vijejomikozo.weebly.com/uploads/1/3/4/6/134668467/sinikibalevoko.pdfIn PDF document text
    • https://mojeleku.weebly.com/uploads/1/3/4/8/134862936/kiwiv.pdfIn PDF document text
    • https://xonuveviriniw.weebly.com/uploads/1/3/0/7/130738603/farururobukuxe.pdfIn PDF document text
    • https://narogigadi.weebly.com/uploads/1/3/0/8/130874066/1208697.pdfIn PDF document text
    • https://defifipak.weebly.com/uploads/1/3/4/4/134442047/xizes-batozatijazij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/likamutozadavosuni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b64577b-581e-4fbd-8539-55dde1683ed1/nuluraxinexukuz.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/75782741779.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/acceptance_letter_format.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/charlotte_perkins_gilman_why_i_wrote_the_yellow_wallpaper.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e068fc22-dcbe-4070-93b3-1ee1afce0412/nunidikajo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ff24a11-efc5-4c08-b93e-450024e6099e/fegobegevekatavamewesogub.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/36432271995.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/monochromatic_worksheet_tints_and_shades.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3e6ae5e-da5d-4d5b-b5e2-93426d7c253f/1978_ford_truck_shop_manual.pdfIn 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_off0000cab3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAB3 5404 bytes
SHA-256: 598739499a2fa4ef41a621e18a29d0776e41eba75dfb4ce4c14f453bc60a101f
font_01_sfnt_off0000dcfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCFE 11308 bytes
SHA-256: e757abfc0aa18366a5f04eabd436c03eb3709f92831b6e71522bd19d570b76db

Open this report in the interactive analyzer, or submit your own file for analysis.