Malicious PDF — malware analysis report

Static analysis result for SHA-256 02ee42402f4d9b9d…

MALICIOUS

PDF

77.5 KB Created: 2021-05-30 05:18:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8149c118c52765c1e1e7545afa7e27a2 SHA-1: 6657337414b62e2ea9145a5eafa7cbbaba84e860 SHA-256: 02ee42402f4d9b9d0f139069239d187ecb53eb0fc34a9478e0a5f8ba6e0a000b
186 Risk Score

Malware Insights

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

This PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to drive traffic to various sites. One prominent URL points to a 'monster legends mod apk hack download', indicating a lure for potentially unwanted or malicious software. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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 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://ponafet.ru/strik?utm_term=monster+legends+mod+apk+hack+download PDF link annotation
    • https://sutafosuteloxep.weebly.com/uploads/1/3/0/8/130814172/seraf.pdfIn PDF document text
    • https://bigutorojorat.weebly.com/uploads/1/3/4/3/134352314/turixegudu.pdfIn PDF document text
    • https://rabunuzo.weebly.com/uploads/1/3/4/5/134502988/penijik_jijile_wekijiw.pdfIn PDF document text
    • https://miruvoxizoxu.weebly.com/uploads/1/3/5/3/135397032/8730336.pdfIn PDF document text
    • https://bakusiluvusefe.weebly.com/uploads/1/3/5/3/135309983/pubowizizomep-gakadafuje-xogisumen-rojokajibikixo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368501/normal_60667a6d6ee65.pdfIn PDF document text
    • https://dilukali.weebly.com/uploads/1/3/4/5/134584555/6af49.pdfIn PDF document text
    • https://bazojosazim.weebly.com/uploads/1/3/6/0/136086377/kodumigesufufaz-pegadusigaruv-poratu-wuzogadulil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450041/normal_5fd136cb71e7a.pdfIn PDF document text
    • https://safusugefivelu.weebly.com/uploads/1/3/4/3/134346528/vuwamivotono-fimuz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427821/normal_6002a5a784028.pdfIn PDF document text
    • https://donoreto.weebly.com/uploads/1/3/0/9/130969624/xoxibejel_rusogipawubul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402706/normal_5ff3c3ed44bbb.pdfIn PDF document text
    • https://zuzigomotof.weebly.com/uploads/1/3/4/8/134889908/dulodugugos_zubipop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425230/normal_60327ebde8b8f.pdfIn PDF document text
    • https://gopiwalugase.weebly.com/uploads/1/3/0/7/130738825/6941915.pdfIn PDF document text
    • https://baxodibidixajit.weebly.com/uploads/1/3/5/3/135311382/vixisinepuzi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377120/normal_6041c7d0abd07.pdfIn PDF document text
    • https://naluzamuro.weebly.com/uploads/1/3/4/5/134516405/921a27.pdfIn PDF document text
    • https://rutaluxunenore.weebly.com/uploads/1/3/0/7/130740368/bepoma.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5201466-96b1-4730-9788-55c55a3a6209/kupetip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4a06bd6-b60e-439e-9c6f-a8ad8e0795d0/tipos_de_sistemas_operativos_de_red_por_su_estructura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13f9f2b9-7707-4f60-93bd-502808751956/silky_johnson_quotes_i_hate_you.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EF 5648 bytes
SHA-256: 88e5928c1bde8f7c8f288ebf0a0d77082676c1ec8b26cda59fb2572ff7f207f5
font_01_sfnt_off00010419.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10419 10776 bytes
SHA-256: a87ef2d67daca4c3d1d63b1700afb7178ed10059aa7ec813d6824b593493a400