Malicious PDF — malware analysis report

Static analysis result for SHA-256 954e1ca386071002…

MALICIOUS

PDF

105.4 KB Created: 2021-03-09 21:01:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3fc7a98922a2870eacdce693149a6bec SHA-1: 5c04448011bd581642ad6df7b80d861df0cfc6bb SHA-256: 954e1ca386071002a40312edc04b47314eb6fee70671f8f12004b5d4e2c2400b
186 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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://maypoin.ru/wix?keyword=tails+nightmare+2+game+play+online PDF link annotation
    • http://zoxifowivo.iblogger.org/bifaritisuludepopolokur.pdfIn PDF document text
    • http://datekal.22web.org/tolamir.pdfIn PDF document text
    • http://bewepovuzif.iblogger.org/83268291117.pdfIn PDF document text
    • https://bexusisase.weebly.com/uploads/1/3/4/5/134596812/xufozujakiwizusax.pdfIn PDF document text
    • https://losarofimet.weebly.com/uploads/1/3/1/3/131384333/xozuxorifuw.pdfIn PDF document text
    • https://felabare.weebly.com/uploads/1/3/0/7/130776415/a507d4565fa.pdfIn PDF document text
    • https://dogeneli.weebly.com/uploads/1/3/0/7/130776728/nisetikuxele_tefigesas_nijogeduvuni.pdfIn PDF document text
    • http://loruvas.iblogger.org/11847763627.pdfIn PDF document text
    • http://barivelovone.22web.org/java_8_171_64_bit.pdfIn PDF document text
    • https://tewukowil.weebly.com/uploads/1/3/2/7/132741555/7b1006.pdfIn PDF document text
    • https://batuputuj.weebly.com/uploads/1/3/0/7/130739628/9ffef091582.pdfIn PDF document text
    • http://gomijojupi.iblogger.org/how_champions_think_in_sports_and_in_life.pdfIn PDF document text
    • http://pafekusiwajida.66ghz.com/guided_bus_route_longstanton.pdfIn PDF document text
    • http://witexodegimo.iblogger.org/9265917469.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://bd7a0a6f-bbfd-49cc-ba41-c3f2778102d9.filesusr.com/ugd/9ea91e_3f056c5f30e94677931501c685c60cad.pdf?index=trueIn PDF document text
    • https://b3709dad-42f4-4621-9b7e-74d31ca978cd.filesusr.com/ugd/f91cf1_0062bb0a783d4849b23ae8386b7f3d3f.pdf?index=trueIn PDF document text
    • http://posugez.epizy.com/jatobawozagimagakijudi.pdfIn PDF document text
    • http://lofekelatek.epizy.com/67349559444.pdfIn PDF document text
    • http://sabesadunapas.epizy.com/lawewuwumafopaz.pdfIn PDF document text
    • https://8eccd3b7-fb20-4588-a5b5-4d8c58591879.filesusr.com/ugd/0e6328_c3ac2a0ecaff4f6dbff7af741b0ad93a.pdf?index=trueIn PDF document text
    • http://gafawazela.epizy.com/zesizipulaf.pdfIn PDF document text
    • http://xikisefux.epizy.com/free_timeline_cv_template_word.pdfIn PDF document text
    • http://xumizaxojumiko.epizy.com/language_handbook_7_clauses_answer_key.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_off0001610a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1610A 5416 bytes
SHA-256: fbc046d9036413bbb76e1f8745a42ddd4915e3c75c3096c387eccf847be96aad
font_01_sfnt_off00017350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17350 10884 bytes
SHA-256: 93eee6274a1be33bcc5879f5afd77f9e1debb407569370ec364895d0c80a90fd

Open this report in the interactive analyzer, or submit your own file for analysis.