Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ba42ae696453e74…

MALICIOUS

PDF

63.9 KB Created: 2021-06-01 17:07:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29d2d96f58163adf83896c74ac9803e8 SHA-1: c040954fe1c839c461b061cfb57639c29f7330ff SHA-256: 0ba42ae696453e74bc2c5b5c2857b81c415e44cc4a83d753b21af55530a84b11
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file exhibits characteristics of a phishing lure, specifically attempting to trick users into downloading a printer driver. It contains a large number of external links, many pointing to disposable hosting services, suggesting a link farm designed to obscure the ultimate destination or host malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8599

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://pixomot.ru/pbw?utm_term=brother+hl+5240+printer+driver+download+for+windows+7+32+bit
    • https://tusixifowidafoj.weebly.com/uploads/1/3/1/4/131437116/rogidazuxava.pdf
    • https://xutativapejan.weebly.com/uploads/1/3/4/5/134521393/3c4170d5aaa1.pdf
    • https://rekaxarekarefov.weebly.com/uploads/1/3/5/3/135300852/gisifuvif.pdf
    • https://wumaluruporemad.weebly.com/uploads/1/3/0/9/130969386/ce39aa4a2477170.pdf
    • https://xijananok.weebly.com/uploads/1/3/0/7/130740199/gazewomusis.pdf
    • https://wexipemeb.weebly.com/uploads/1/3/4/8/134860193/eeba0377c35dcf.pdf
    • https://fozejabaf.weebly.com/uploads/1/3/5/3/135305581/zujatoj.pdf
    • https://lanizozegew.weebly.com/uploads/1/3/5/3/135309184/levafixabemavotiza.pdf
    • https://nenikekawudiw.weebly.com/uploads/1/3/4/4/134468161/genozotujax.pdf
    • https://mivegogoke.weebly.com/uploads/1/3/4/3/134365655/1406893.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bupataved.pbworks.com/w/file/fetch/144420405/jurotekukuwozavigawu.pdf
    • http://zewalar.pbworks.com/f/90239644931.pdf
    • http://nusuwoxub.pbworks.com/f/41787998606.pdf
    • http://ziludezubeju.pbworks.com/w/file/fetch/144464136/how_do_you_write_a_reference_letter_for_an_employee_leaving.pdf
    • https://uploads.strikinglycdn.com/files/11254b54-0bca-4a21-9138-dc3ffa0312ab/tegak.pdf
    • https://uploads.strikinglycdn.com/files/57e4eb21-5446-4e2e-866f-cca39286d42a/75733486194.pdf
    • http://tisowowuduwe.pbworks.com/f/primavera_silenciosa_resumen_por_captulos.pdf
    • http://zekodunu.pbworks.com/f/ales_yarg_matematik_konu_anlatml_kitab.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2ba.bin
0c1c92b0d1d4accf1b5d36f22bf9a6bcffc84f6fdc194820a520eb3dafe5c6d8
pdf-font-stream PDF embedded font (sfnt) at offset 0xD2BA 5988 bytes