Malicious PDF — malware analysis report

Static analysis result for SHA-256 694ed09a144dcd92…

MALICIOUS

PDF

69.2 KB Created: 2021-03-03 22:08:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 47a4449d17dee8d8bfe523a10ac8f38a SHA-1: 267137808731e40d94a1ddc385d5161b258e396d SHA-256: 694ed09a144dcd92693c40bb94315e90885944407a2553f4256507339268d350
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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.
  • 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/award?keyword=coleman+roadtrip+225+grill+cover PDF link annotation
    • http://technodom11.com/fodazumus3czp.pdfIn PDF document text
    • https://lebugaboforov.weebly.com/uploads/1/3/5/9/135976333/jelaniwebe_fevogore_kumavanejubeti.pdfIn PDF document text
    • http://topstop.site/pathfinder_dungeon_master_guide7kwzn.pdfIn PDF document text
    • https://zeteleginogegop.weebly.com/uploads/1/3/4/5/134526156/niviminikiwisakake.pdfIn PDF document text
    • http://3gusevshop.website/30009129743sava5.pdfIn PDF document text
    • https://molawakipo.weebly.com/uploads/1/3/1/3/131379716/fowoku-lujivoris-detogawuzodone-gekozi.pdfIn PDF document text
    • https://wisamifogafize.weebly.com/uploads/1/3/4/5/134598642/beroraxewedar.pdfIn PDF document text
    • http://1xbet-regi.site/wakidewizoguziviwazjbfau.pdfIn PDF document text
    • https://kibodoru.weebly.com/uploads/1/3/2/6/132695707/ce2ca583274f07.pdfIn PDF document text
    • http://voirop.xyz/party_next_door_downloadbxopn.pdfIn PDF document text
    • https://tuxufinuzeleki.weebly.com/uploads/1/3/4/7/134737217/sokene_xanor_jazutubobamemu.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/xokebore/94540098172.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/95601105550.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/exponents_practice_challenging_problems_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/70158209139.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_off0000cf0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF0D 5436 bytes
SHA-256: bc9990ea707b5e4e832278282880ba0afa25b7be17990e6dee0eb875d56f0b9f
font_01_sfnt_off0000e17b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE17B 10872 bytes
SHA-256: adb5572b8b251ac16da962ceac8b6b4a9ea8c88f4779aa55f5fc9c49340d4df8