Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a1ad464a1f883ee…

MALICIOUS

PDF

67.6 KB Created: 2021-02-25 02:10:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d4057203b47adb20ee821fff437babdc SHA-1: 43c4ac1bb18f4404caf6dc34827a51047699b7d2 SHA-256: 1a1ad464a1f883ee57b74c7c86577f59d8340de8e5ebb6a3e1ac0926a90d9a12
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=watch+courageous+full+movie+free+online PDF link annotation
    • https://cdn.sqhk.co/wemorapi/Nt60thg/97469554405.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403140/normal_60149345e2c58.pdfIn PDF document text
    • http://card2card.live/lolelogipehq7mw.pdfIn PDF document text
    • https://cdn.sqhk.co/faruzikako/dqyhhhd/world_war_2_mod_apk_latest_version.pdfIn PDF document text
    • https://cdn.sqhk.co/gegenosuzun/haXiaEs/26900142471.pdfIn PDF document text
    • https://cdn.sqhk.co/podoxato/ifWjbgc/world_at_arms_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwadezab/jTijgdC/fitevisudowotavafipudagu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503767/normal_5ff625a9dca13.pdfIn PDF document text
    • https://zopodiwozexuma.weebly.com/uploads/1/3/4/7/134737972/konopagix-sugugi-jutopus-pigabitoj.pdfIn PDF document text
    • https://cdn.sqhk.co/doginifa/iejg1Pi/69888500985.pdfIn PDF document text
    • https://cdn.sqhk.co/kikolibub/ieyhbIf/45648849127.pdfIn PDF document text
    • https://cdn.sqhk.co/sobutexe/6hfGnii/betigavipedinavo.pdfIn PDF document text
    • https://cdn.sqhk.co/minofavazu/jdIZji0/77479177950.pdfIn PDF document text
    • https://cdn.sqhk.co/buxifuludo/dEPWBih/indo_ranker_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/kukisigafumi/hChfiio/gopomuxoxutesajuxodado.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425768/normal_5ff928ab44244.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413226/normal_60338d25476f9.pdfIn PDF document text
    • https://cdn.sqhk.co/banuluwopote/9jaLTgg/42408192612.pdfIn PDF document text
    • https://cdn.sqhk.co/gobenebovi/iaF4jge/63455676434.pdfIn PDF document text
    • https://niravewowinud.weebly.com/uploads/1/3/5/3/135343761/9144517.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cc80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC80 5368 bytes
SHA-256: 702cf5e52fe734c7e63bf3c491ebc895116be46bd0a4b6a6eb18a6201993af95
font_01_sfnt_off0000deaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAF 10120 bytes
SHA-256: a67f42ca5f00d82a4c443bc9331c5a430b745496dd9c0d4acdcf19701bc1c400

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