Malicious PDF — malware analysis report

Static analysis result for SHA-256 d00eb193e7cf0938…

MALICIOUS

PDF

71.3 KB Created: 2021-03-29 10:48:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 2681bc83e8d78662e39273f787cfb70c SHA-1: 04a3b8d152d840c52b20f29e41c5a87cfe00c83a SHA-256: d00eb193e7cf0938aa5d0f15325868da47432d4ba3945c9af6ec495e28dafb9f
186 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm used for SEO poisoning or phishing. The primary malicious URL identified is https://soxebez.ru/award?keyword=bhagavad+gita+in+tamil+pdf, which likely serves as a lure to a malicious site or download. No scripts were extracted, but the structure suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://soxebez.ru/award?keyword=bhagavad+gita+in+tamil+pdf PDF link annotation
    • https://dufadijikog.weebly.com/uploads/1/3/5/3/135325035/dabexakolux.pdfIn PDF document text
    • https://gajokemijibefe.weebly.com/uploads/1/3/4/4/134467094/gomenateg_rafosirixem_rabodu_duvuj.pdfIn PDF document text
    • https://bumewotosebixab.weebly.com/uploads/1/3/5/2/135298585/5430137.pdfIn PDF document text
    • https://referozudu.weebly.com/uploads/1/3/0/7/130775612/6373457.pdfIn PDF document text
    • https://murufirekitopu.weebly.com/uploads/1/3/1/8/131856476/1164155.pdfIn PDF document text
    • https://konilusikiwi.weebly.com/uploads/1/3/3/9/133986353/5656184.pdfIn PDF document text
    • https://jidedenevunuva.weebly.com/uploads/1/3/4/4/134498736/2895456.pdfIn PDF document text
    • https://gomopurijovovuj.weebly.com/uploads/1/3/5/3/135390772/2a6c061415f07c7.pdfIn PDF document text
    • https://wefapewirevuvik.weebly.com/uploads/1/3/4/6/134667644/1822457.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/dhb8jc5/mirixirigotulagogemapip.pdfIn PDF document text
    • https://fafogefefotal.weebly.com/uploads/1/3/5/3/135314601/komide-vetodulase-xotoradubinu-mijesexa.pdfIn PDF document text
    • https://vobudogekatobef.weebly.com/uploads/1/3/0/8/130874620/3305676.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/j6n3Ogf/vitamin_d3_foods_vegan.pdfIn PDF document text
    • https://sujujawajiz.weebly.com/uploads/1/3/5/9/135964945/e63216a593ab.pdfIn PDF document text
    • https://gawozigojuvapa.weebly.com/uploads/1/3/4/8/134896601/legepokezinap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://2a4065d7-883d-43e8-a524-7ce9aa4b4e88.filesusr.com/ugd/ccb1c6_b92ae85e9c8b4560b49a85e2aea92dbe.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/muxovogal.pdfIn PDF document text
    • https://121f8fc1-d270-4171-a721-8ccd656fc20f.filesusr.com/ugd/2ca22b_7ff530f6e4f64524a9be2405debdf08a.pdf?index=trueIn PDF document text
    • https://89f68ddc-9f98-4e60-8afa-3e0ca6603e9e.filesusr.com/ugd/4725f1_5ffc3917946e40708f7df0c68e4124a2.pdf?index=trueIn PDF document text
    • https://cdb53ace-3f3f-41e1-823e-0ecf3add8ba2.filesusr.com/ugd/47e9e0_37ca1c7743ad47879eaf064e3293c272.pdf?index=trueIn PDF document text
    • https://6448a590-b571-4b71-a9e4-820b8531b153.filesusr.com/ugd/782be2_34e666a330624dad9cb051b4ca163eb0.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dupula/23928783448.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_off0000d832.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD832 5288 bytes
SHA-256: bf821a7dc42790ad7afe4cc3560491885c0ef1dd4a38349a9d87440e56b64bc0
font_01_sfnt_off0000ea1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA1E 11136 bytes
SHA-256: e4e99ae97ff4d2327e05a9b2c1f589b3b2fb7b57be138b8d4f7de42df1ce7f11