Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca61e66778655b2d…

MALICIOUS

PDF

73.4 KB Created: 2022-04-05 04:17:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-07
MD5: 7b874940b1807f91ddf48dfde953ff58 SHA-1: e8ab57492632d22b45cf8a6398f0d403ca3efe35 SHA-256: ca61e66778655b2d19740c81e17f2405c1bbd550564d35492259c519cb9ae63a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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://myleague.vn/uploadfiles/kcfinder/files/93057785246.pdf In PDF document text
    • https://xefigokilevugez.weebly.com/uploads/1/3/5/2/135299251/lirumugexipitun.pdfIn PDF document text
    • https://zolezuborejizo.weebly.com/uploads/1/3/4/4/134444688/c6c02abc.pdfIn PDF document text
    • https://xoselobukakuri.weebly.com/uploads/1/3/4/4/134498653/3a8457e009b.pdfIn PDF document text
    • https://fewidatemuvej.weebly.com/uploads/1/3/4/2/134266352/3962869.pdfIn PDF document text
    • https://serivuzoforin.weebly.com/uploads/1/3/4/3/134334639/vinakano-ginetakase-jovezufabazagem.pdfIn PDF document text
    • https://bovaxomasomi.weebly.com/uploads/1/3/1/4/131437143/89fabd.pdfIn PDF document text
    • https://dpmptsp.pemkomedan.go.id/dpmptspwebaplikasi/libraries/ckeditor/kcfinder/upload/files/90067124686.pdfIn PDF document text
    • https://janewabogub.weebly.com/uploads/1/3/4/4/134483822/mavoxeb.pdfIn PDF document text
    • http://kaica.org.sa/ckeditor/kcfinder/upload/files/sekasufododajiki.pdfIn PDF document text
    • https://dufadijikog.weebly.com/uploads/1/3/5/3/135325035/3157775.pdfIn PDF document text
    • https://mowasedexalobir.weebly.com/uploads/1/3/4/7/134743102/bepudaxisuzubo.pdfIn PDF document text
    • https://xuwowazasoko.weebly.com/uploads/1/3/4/0/134041707/8dc063538.pdfIn PDF document text
    • https://bitigufej.weebly.com/uploads/1/3/5/3/135337089/bulexovada.pdfIn PDF document text
    • http://ferien-in-zahren.de/images/file/zusoko.pdfIn PDF document text
    • https://kebotufu.weebly.com/uploads/1/3/4/7/134735966/rimip.pdfIn PDF document text
    • https://fatabegoba.weebly.com/uploads/1/3/4/7/134711174/962804.pdfIn PDF document text
    • http://highlevel.pl/userfiles/file/68833970525.pdfIn PDF document text
    • https://gazutegib.weebly.com/uploads/1/3/5/4/135400758/edab4754580.pdfIn PDF document text
    • https://pabazoba.weebly.com/uploads/1/3/1/3/131381204/digivafedol.pdfIn PDF document text
    • https://gozivuwedigati.weebly.com/uploads/1/3/4/6/134612943/13949b29329f86.pdfIn PDF document text
    • https://ribimefisele.weebly.com/uploads/1/3/4/5/134516567/f5a7efed7eb45.pdfIn PDF document text
    • https://tijezelaxupoki.weebly.com/uploads/1/3/5/3/135340387/zizoxaker.pdfIn PDF document text
    • https://xulozajewe.weebly.com/uploads/1/3/1/3/131384688/8573511.pdfIn PDF document text
    • https://wegodirudime.weebly.com/uploads/1/3/2/7/132740829/tatusin.pdfIn PDF document text
    • https://deximuxinudob.weebly.com/uploads/1/3/0/7/130739142/bileriker.pdfIn PDF document text
    • https://sedaduvu.weebly.com/uploads/1/3/4/5/134598683/basivalusabijal_kibubaluxinis_seletuturu.pdfIn PDF document text
    • https://podar.co.za/YmrXLWy8?keyword=int%20cot%5EPDF link annotation
    • 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_off0000ae45.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ae45.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ae45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE45 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c65c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC65C 10988 bytes
SHA-256: 4079eba9859cb8ed6f17cc5e64d68fba840336d48ae4578b212bb74282cf9ef2
font_02_sfnt_off0000e01d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01D 17512 bytes
SHA-256: fb658cf44f1f4affb8a494488548884e5b15367cd18ed3554b90047e70a29e17
font_03_sfnt_off00010dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DC7 1780 bytes
SHA-256: 94da071d87cd7ee37ee961f4999d5c8ba7ea74871ed8c8102e48280920c52ce6