Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fb50ec040f1ce4…

MALICIOUS

PDF

65.4 KB Created: 2022-03-26 04:06:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: ec3db9549397a3a9126516f68c57f3d1 SHA-1: c579521102598c31d1b1ef42e09151523ea2dc19 SHA-256: a4fb50ec040f1ce40ac37ea7537c836ad1d61f43b827cea54342745cca856bf1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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://colod.co.za/YmrXLWy8?keyword=envision%20math%204th%20grade%20curriculum%20map PDF link annotation
    • https://tenuwikenosex.weebly.com/uploads/1/3/6/0/136082269/ab787d2.pdfIn PDF document text
    • https://wepomifid.weebly.com/uploads/1/3/4/6/134676114/5d0b9.pdfIn PDF document text
    • https://zigibopujomez.weebly.com/uploads/1/3/5/3/135350997/7096659.pdfIn PDF document text
    • https://tepupareta.weebly.com/uploads/1/3/0/8/130814680/pefofolo_vixudesiropawo.pdfIn PDF document text
    • https://laxigotugib.weebly.com/uploads/1/3/0/9/130969680/ruvepaxuzifama.pdfIn PDF document text
    • https://wipasokewuwil.weebly.com/uploads/1/3/4/0/134000036/xitigaduporirerab.pdfIn PDF document text
    • https://kezunegewekal.weebly.com/uploads/1/3/1/4/131483031/8e5fdf99.pdfIn PDF document text
    • https://janunawavi.weebly.com/uploads/1/3/4/3/134314220/nuvuxoviripar.pdfIn PDF document text
    • https://nujamoxe.weebly.com/uploads/1/3/4/2/134234607/9459ad.pdfIn PDF document text
    • https://fogovuraperikog.weebly.com/uploads/1/3/4/7/134713912/2485b5.pdfIn PDF document text
    • https://petekebinipaz.weebly.com/uploads/1/3/5/3/135395272/34ebb4.pdfIn PDF document text
    • https://musazulawikale.weebly.com/uploads/1/3/5/3/135305526/dolixomod.pdfIn PDF document text
    • https://kofenidez.weebly.com/uploads/1/3/4/8/134890612/nonew_pudinebobez_jenimenojebezi.pdfIn PDF document text
    • https://womevelem.weebly.com/uploads/1/3/2/8/132814223/743a6.pdfIn PDF document text
    • https://maxawoxemun.weebly.com/uploads/1/3/4/6/134615094/giveruwa.pdfIn PDF document text
    • https://fimezerix.weebly.com/uploads/1/3/4/4/134478386/411aa039d10.pdfIn PDF document text
    • https://jedirixaz.weebly.com/uploads/1/3/4/8/134875163/bukebuva.pdfIn PDF document text
    • https://gelixilononusi.weebly.com/uploads/1/3/0/7/130775878/a371710645a9353.pdfIn PDF document text
    • https://lenimupet.weebly.com/uploads/1/3/4/0/134013040/kunudepuk-butexiji.pdfIn PDF document text
    • https://latufuxi.weebly.com/uploads/1/3/1/1/131163666/513a4bfbb2e4f36.pdfIn PDF document text
    • https://dedibigi.weebly.com/uploads/1/3/4/3/134358563/jomofegoxez.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_off00009ddc.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00009ddc.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_off00009ddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DDC 11188 bytes
SHA-256: c1272802a3510a5d33b060dcdc8ead4023f43936e010de56842f30ba3c0f5047
font_01_sfnt_off0000b7b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7B3 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000ce52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE52 16020 bytes
SHA-256: c50d9106ef0bec039ad5bea39cdb56984847d907ed4e795ef6a85b0bdd0a9eff

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