Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa83e7757b1c91cd…

MALICIOUS

PDF

81.9 KB Created: 2022-04-07 18:34:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 1e33acd3c3e1383fb872b66b3a39c977 SHA-1: f37e1a71d07665833b6639ea7fe3db17c7ec7ca5 SHA-256: aa83e7757b1c91cdf9df15ad18030da3a55d4c5c9b459dfd58b8cff8062b07e2
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://wirut.co.za/YmrXLWy8?keyword=how%20to%20determine%20if%20a%20compound%20is%20ionic%20or%20molecular PDF link annotation
    • https://losopaxirusegu.weebly.com/uploads/1/3/0/8/130813120/litegitisavosupa.pdfIn PDF document text
    • https://miwovobapenatoj.weebly.com/uploads/1/3/4/2/134266375/7ec04.pdfIn PDF document text
    • https://wupanotowi.weebly.com/uploads/1/3/1/4/131406855/rimuluta.pdfIn PDF document text
    • http://www.fbs-g.com/kcfinder/upload/files/pinojemenezebiloz.pdfIn PDF document text
    • https://interference.ajoda.eu/userfiles/files/valinozazosogokidipe.pdfIn PDF document text
    • http://lechioutdoor.com/userfiles/file/melije.pdfIn PDF document text
    • https://tigerabedudutid.weebly.com/uploads/1/3/5/3/135304069/vunematifemaj-jopad-zipimunegilora.pdfIn PDF document text
    • https://pevomoten.weebly.com/uploads/1/3/4/6/134626000/jepotojokor_voxubikun.pdfIn PDF document text
    • https://tefegori.weebly.com/uploads/1/3/1/6/131637168/8733856.pdfIn PDF document text
    • https://dixawofira.weebly.com/uploads/1/3/5/3/135303501/wabunawe.pdfIn PDF document text
    • https://woxexawunum.weebly.com/uploads/1/3/0/7/130776255/tafovojem.pdfIn PDF document text
    • https://sonelalakilo.weebly.com/uploads/1/3/4/4/134400406/9623060.pdfIn PDF document text
    • https://revixapega.weebly.com/uploads/1/3/4/6/134619396/guvalufaz-fejovemi-sidosikawovo.pdfIn PDF document text
    • https://xaboweme.weebly.com/uploads/1/3/4/6/134659191/dixaxutifuleji.pdfIn PDF document text
    • https://bomirilipaxotez.weebly.com/uploads/1/3/4/0/134096722/24063296bca58.pdfIn PDF document text
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206f99e7a8ab---48516900786.pdfIn PDF document text
    • https://fenawivo.weebly.com/uploads/1/3/4/0/134000055/9974955.pdfIn PDF document text
    • https://xenizejaruwew.weebly.com/uploads/1/3/4/7/134709329/f1c6c7e.pdfIn PDF document text
    • https://tegikalom.weebly.com/uploads/1/3/0/8/130874380/bipevawog.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_off0000db9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f3ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3AD 17224 bytes
SHA-256: b63e92a0d910d4542ed2e174dbea7271a585b9751cf29f4510ffa2b83758e750
font_02_sfnt_off000120fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120FA 10956 bytes
SHA-256: 64638ee2b1e8408d625128584e52f69ba47fd1c468e0e45b23e233cc1e5e4bcb

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