Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6f9564b2a537863…

MALICIOUS

PDF

69.6 KB Created: 2021-02-24 15:33:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8e8dfbe440965b8cd3c410a196772c41 SHA-1: d4c729d28f061c85865f7d117683e223b5b72ff2 SHA-256: f6f9564b2a53786368bf74a092a5ddd4c9c5772832a474d3615887f4cebc5a25
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://maypoin.ru/wix?keyword=parts+of+an+atom+worksheet+pdf+answers PDF link annotation
    • https://cdn.sqhk.co/fuvebopeweb/jiQhbha/fitbit_charge_3_setup_instructions.pdfIn PDF document text
    • http://dayzcommunity.info/20106010423336f6.pdfIn PDF document text
    • https://cdn.sqhk.co/jadojibam/bZ3jhjL/capsule_wardrobe_men.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386824/normal_60142272f0d33.pdfIn PDF document text
    • https://koxewezadopu.weebly.com/uploads/1/3/4/0/134017906/ruferejupumamaz.pdfIn PDF document text
    • https://menekagamop.weebly.com/uploads/1/3/4/0/134097565/870d47dcc4cddf4.pdfIn PDF document text
    • https://juwexulomo.weebly.com/uploads/1/3/4/3/134385858/pudik-zekutogagofewo-xuvabofujojaxa-botinefamev.pdfIn PDF document text
    • http://rawoxaxevog.mygamesonline.org/wudifiwugulize.pdfIn PDF document text
    • https://cdn.sqhk.co/fagiseregu/gUjchcO/83351219154.pdfIn PDF document text
    • http://nageramuvepom.mywebcommunity.org/tripura_rahasya_hindi.pdfIn PDF document text
    • http://rexevivejegox.scienceontheweb.net/84926544560.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428038/normal_5fc8a37a85516.pdfIn PDF document text
    • https://sivesasa.weebly.com/uploads/1/3/4/6/134669324/b225f0f.pdfIn PDF document text
    • http://vorecan.fun/pekulebubedevojiroromateb22ucs.pdfIn PDF document text
    • https://fixabugodorev.weebly.com/uploads/1/3/1/8/131856934/ratanidex.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rosajeku.myartsonline.com/the_great_hunt_audiobook.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_off0000d4c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4C7 5408 bytes
SHA-256: 70115e7341fc6c810593d62ae50739409f2e1ac39ce87536bc349ffe76af359c
font_01_sfnt_off0000e715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE715 10120 bytes
SHA-256: 4dfc3445c804ef8214b472e09a20ef731e528a92dd4b383e027a3d29fc3c7a01