Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8b4cef2306c6ba…

MALICIOUS

PDF

82.6 KB Created: 2022-03-27 22:40:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 8b512b01c4b9588ebad3031985022a1b SHA-1: dd557b17071341a1609b1967072982d01b6d2db6 SHA-256: aa8b4cef2306c6ba3a59a572c31abfd9d0be63fa894f8b4e746f2ef266d48ac9
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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=short%20story%20ideas%20for%20grade%205 PDF link annotation
    • https://ragadavifomo.weebly.com/uploads/1/3/5/3/135306528/fukavutib_rekepoxi_segawijiso_bemitek.pdfIn PDF document text
    • https://bifotuvimutojuz.weebly.com/uploads/1/3/0/9/130969437/ca543bf7dea4c6.pdfIn PDF document text
    • https://kasugokadudibuk.weebly.com/uploads/1/3/4/7/134740653/b0a5c8.pdfIn PDF document text
    • https://javodamujuwevef.weebly.com/uploads/1/3/4/4/134446411/5353595.pdfIn PDF document text
    • https://dujezipiver.weebly.com/uploads/1/3/4/6/134610991/6118778.pdfIn PDF document text
    • https://watubozez.weebly.com/uploads/1/3/5/3/135346011/matuwurajigeged.pdfIn PDF document text
    • https://guxemufisi.weebly.com/uploads/1/3/2/7/132710659/kowute.pdfIn PDF document text
    • https://mutodebubopuvom.weebly.com/uploads/1/3/4/3/134373551/75b17.pdfIn PDF document text
    • https://sonefuvik.weebly.com/uploads/1/3/4/3/134325549/xegulesofu-pijamelizijafe.pdfIn PDF document text
    • https://kibatujobed.weebly.com/uploads/1/3/4/7/134739754/4489641.pdfIn PDF document text
    • https://povuwexaruvave.weebly.com/uploads/1/3/4/8/134867965/zujivimozeg_kiwivabamob.pdfIn PDF document text
    • https://mafojavakafox.weebly.com/uploads/1/3/0/8/130814343/328260.pdfIn PDF document text
    • https://vemudafu.weebly.com/uploads/1/3/4/6/134655664/e03355978e.pdfIn PDF document text
    • https://zejebamusij.weebly.com/uploads/1/3/2/3/132302936/4186659.pdfIn PDF document text
    • https://zufojemesegogof.weebly.com/uploads/1/3/4/7/134753559/1256718.pdfIn PDF document text
    • https://xinemituvirow.weebly.com/uploads/1/3/4/1/134108685/mirotemazugom-xixudezularugup.pdfIn PDF document text
    • https://javodamujuwevef.weebly.com/uploads/1/3/4/4/134446411/be0a6.pdfIn PDF document text
    • https://lafajadisevo.weebly.com/uploads/1/3/1/4/131454770/jixilawularo-ginazidipomi-sozebivigevag-kaxamo.pdfIn PDF document text
    • https://fetozala.weebly.com/uploads/1/3/4/6/134678703/5379015c95dde2.pdfIn PDF document text
    • https://mewetoliwuluveb.weebly.com/uploads/1/3/4/7/134767879/fofes.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC4 17032 bytes
SHA-256: 75b01e37c3f2edfce59e27fe73112b4dd2ecc49eb9a5df9cb7d06bb290e52acb
font_01_sfnt_off00010b1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B1C 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000121c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121C0 10808 bytes
SHA-256: 3c09a47fc2b9a3e8fef1cb7aae9459d151cc8f47cc4f1a6036551d22dd40ebe7

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