Malicious PDF — malware analysis report

Static analysis result for SHA-256 71b9640f170904ef…

MALICIOUS

PDF

72.8 KB Created: 2021-03-01 19:00:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6726eab2d5c326818b6448f2a72ef94f SHA-1: e0796bb729f6f533468bf7601b481823fbeb95bd SHA-256: 71b9640f170904ef72e8df22e00fb9334e72c6b018b3cfc277c715f7055d3840
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/award?keyword=cub+cadet+lt1042+service+manual+download PDF link annotation
    • https://pajowivi.weebly.com/uploads/1/3/4/9/134904739/sosav.pdfIn PDF document text
    • https://kixarazebeda.weebly.com/uploads/1/3/0/7/130776474/xubesek-rivetalobefanab-sapaminorom.pdfIn PDF document text
    • http://suziterunedoloj.sportsontheweb.net/kubof.pdfIn PDF document text
    • https://velumosatowe.weebly.com/uploads/1/3/4/8/134883763/xenixedag.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384817/normal_5fdef8c1149b0.pdfIn PDF document text
    • https://levukuwaxumofet.weebly.com/uploads/1/3/1/3/131383949/rinitowifonediza.pdfIn PDF document text
    • https://fupomojokom.weebly.com/uploads/1/3/4/4/134458651/940922a6bbbbac5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379038/normal_5ffd823e979f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368248/normal_60324e132cc19.pdfIn PDF document text
    • https://jetukuzimol.weebly.com/uploads/1/3/2/6/132695660/vuneda.pdfIn PDF document text
    • https://cdn.sqhk.co/zokelofid/gjgdogf/pagipobilufukajo.pdfIn PDF document text
    • http://tonemisi.medianewsonline.com/sonic_onion_rings_nutrition_information.pdfIn PDF document text
    • http://winatesef.sportsontheweb.net/cannon_24_gun_safe_accessories.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476596/normal_5fcdf3f6c57e3.pdfIn PDF document text
    • https://cdn.sqhk.co/gilevetu/hbuGMEx/ferovolu.pdfIn PDF document text
    • https://pidofuvu.weebly.com/uploads/1/3/0/7/130739764/tajikuvozugasavo.pdfIn PDF document text
    • https://rirofogarerena.weebly.com/uploads/1/3/0/7/130775169/6046451.pdfIn PDF document text
    • https://baxorumele.weebly.com/uploads/1/3/0/9/130969728/5337005.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454984/normal_6000cf4169d10.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://bifovigavij.myartsonline.com/kizinanagiwitajemarufur.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D0 5696 bytes
SHA-256: 5781b030f9ad5f52a05098fd1bf5d00e6f95d3c33b6dcead893f2b564dbcd9e8
font_01_sfnt_off0000e435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE435 10508 bytes
SHA-256: fe7c0736d3876c47a3b5be6e74102f16739ccf1bc991c749db07679d5d638b64
font_02_sfnt_off000107e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107E9 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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