Malicious PDF — malware analysis report

Static analysis result for SHA-256 89f184cad5a6033d…

MALICIOUS

PDF

79.3 KB Created: 2022-04-19 11:49:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-01
MD5: 2cc12831c86bf47e06edf459bc2f882e SHA-1: c5ec7c82a9ce6b13b3f6c65a9ceed22a8e460ab8 SHA-256: 89f184cad5a6033dbeedda8b8a2aee4fe8cf1c506cd7e132dda6c80ffa51a207
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document body and embedded URLs reveal a link farm pointing to numerous external PDF files hosted on disposable domains. This suggests a tactic to distribute malicious content or engage in SEO spam, with the primary goal of directing users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://podar.co.za/YmrXLWy8?keyword=furman%20elite%2015i%20power%20conditioner%20review PDF link annotation
    • https://fuwukikerufat.weebly.com/uploads/1/4/1/2/141258524/9882081.pdfIn PDF document text
    • http://thegioituigiay.net/uploads/files/24182147257.pdfIn PDF document text
    • http://musorcentrum.hu/files/article/file/76559187741.pdfIn PDF document text
    • https://mipibafafoxudi.weebly.com/uploads/1/4/1/4/141428132/vujira-kubimifade-zapuwat-funasunar.pdfIn PDF document text
    • https://juxosejuw.weebly.com/uploads/1/3/4/4/134481686/lipipelebavolax.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16203f1becae33---zikugowirojebeso.pdfIn PDF document text
    • https://buritovetozew.weebly.com/uploads/1/3/4/4/134486370/6f711fca26d2.pdfIn PDF document text
    • https://netron.pt/app/webroot/media/files/26683802221.pdfIn PDF document text
    • https://milunuxuv.weebly.com/uploads/1/3/4/5/134529922/gosifowidejuve.pdfIn PDF document text
    • https://bonawuxuje.weebly.com/uploads/1/3/0/7/130776103/00431b5b649d.pdfIn PDF document text
    • https://iqrainternationalschool.org/_assets/files/salitatani.pdfIn PDF document text
    • https://rinuxusopav.weebly.com/uploads/1/3/4/6/134679155/87763.pdfIn PDF document text
    • https://xoforovujedopod.weebly.com/uploads/1/3/4/5/134587448/8165802.pdfIn PDF document text
    • http://cosmoscm.com/contents/files/8327303349.pdfIn PDF document text
    • https://mozipode.weebly.com/uploads/1/3/1/4/131437967/83bf25e0.pdfIn PDF document text
    • https://waxewuzezijibu.weebly.com/uploads/1/4/1/4/141401480/b517a30f6a.pdfIn PDF document text
    • https://dawanuma.weebly.com/uploads/1/3/4/3/134305997/8351074.pdfIn PDF document text
    • http://kartinatv.org/uploads/files/gosowenamuxuselili.pdfIn PDF document text
    • http://healthmindsacademy.com/admin/ckeditor/kcfinder/upload/files/mejomuwobujeguvimi.pdfIn PDF document text
    • https://neoneofitou.com/ckfinder/userfiles/files/34420602641.pdfIn PDF document text
    • https://vudaxevagi.weebly.com/uploads/1/3/4/2/134234865/gejosabif-relujasizejin-rujevuj.pdfIn PDF document text
    • https://gobebirerelimi.weebly.com/uploads/1/3/4/6/134651667/1700851.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_off0000d01e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d01e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD01E 17444 bytes
SHA-256: 7b0625eeec8ef357b2e5b89d8f9ea4c8998a22a554184aa2b238d2a425ec8377
font_01_sfnt_off0000fe02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE02 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011619.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11619 10924 bytes
SHA-256: 8aa705579411000b4ddc61cb55e5b2239e54fd5c1934a541a480cf434458c1d4