Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c631bb63e4a4c14…

MALICIOUS

PDF

80.9 KB Created: 2022-04-09 10:42:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: c000f3e664fcb94c0f75903aba8f6e92 SHA-1: c19f3b270450bfff905b34f251619911a325d3f1 SHA-256: 6c631bb63e4a4c14e336786f298368cff427e6af545b054b237fd8960445120b
186 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
  • 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.
  • 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://tevav.co.za/YmrXLWy8?keyword=how%20to%20get%20rid%20of%20back%20fat%20and%20underarm%20flab%20with%20these%204%20quick%20exercises PDF link annotation
    • https://dusalunefawotof.weebly.com/uploads/1/3/4/4/134487283/bojokeramimison.pdfIn PDF document text
    • https://kofoxutekibefa.weebly.com/uploads/1/3/1/4/131454286/8532271.pdfIn PDF document text
    • https://wofinomedek.weebly.com/uploads/1/3/4/1/134108675/166434.pdfIn PDF document text
    • https://fagezatev.weebly.com/uploads/1/3/4/7/134711774/vodoluzubam.pdfIn PDF document text
    • https://dubamuxurel.weebly.com/uploads/1/3/4/4/134463085/3712303.pdfIn PDF document text
    • https://wuwawibef.weebly.com/uploads/1/3/4/6/134608234/8712312.pdfIn PDF document text
    • http://bresnahan.sfiab.com/data/userfiles/file/32097183329.pdfIn PDF document text
    • https://seger.cz/userfiles/file/19179888986.pdfIn PDF document text
    • http://hrt-foto.hu/_user/file/kolexubaboferiwobufada.pdfIn PDF document text
    • http://cfboxrx.com/js/kcfinder/upload/files/23090637968.pdfIn PDF document text
    • http://norilsk.torbay.ru/images/uploads/file/ribemutuvirapasirosas.pdfIn PDF document text
    • https://labomozojaxige.weebly.com/uploads/1/3/0/7/130738499/wutoloninepuwu.pdfIn PDF document text
    • http://bochkari1.ru/pic/file/mokabofovoxowefuxoke.pdfIn PDF document text
    • https://tofamofale.weebly.com/uploads/1/3/1/4/131406114/6620883.pdfIn PDF document text
    • https://junalupi.weebly.com/uploads/1/3/4/4/134460459/wapos.pdfIn PDF document text
    • https://togeltop.com/contents/files/60700293345.pdfIn PDF document text
    • https://nelinijamewugin.weebly.com/uploads/1/3/1/0/131070382/6970755.pdfIn PDF document text
    • https://jijavizoj.weebly.com/uploads/1/3/4/5/134582380/sojimup-todizugijuweje-jemavigib.pdfIn PDF document text
    • https://batujesidow.weebly.com/uploads/1/3/4/6/134666028/zesoragavuradeluxa.pdfIn PDF document text
    • https://vitanov.rs/files/24351334146.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000d254.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d254.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD254 11656 bytes
SHA-256: d8e822b69a3031210d9c114f14e2009fbdff96189da46f2a7643916bd86cb5d1
font_01_sfnt_off0000ed71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED71 17120 bytes
SHA-256: 61d4ce789072d483c4154da85c3dbd7f472efdd4509a9d7fa966f334d1c96b79
font_02_sfnt_off00011a53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A53 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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