Malicious PDF — malware analysis report

Static analysis result for SHA-256 63a4c73246eaa046…

MALICIOUS

PDF

70.6 KB Created: 2021-02-28 17:07:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 162ccdf62ddf7037d9403de9413f8e62 SHA-1: 8ff696f71f904a215010f6b5425965282b10ecf6 SHA-256: 63a4c73246eaa046d58d596a5a0a96080252fe4960d67fa8ae1b722800856d28
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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
  • 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://jacksth.ru/wix?keyword=hardie+irrigation+hr+6100+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4423757/normal_5fedca523e95d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370303/normal_601f8f03b9937.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370299/normal_6009221ae1a75.pdfIn PDF document text
    • http://itslm.fun/93040506055rf4mx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484997/normal_5fcc1ddd881ff.pdfIn PDF document text
    • https://toginomaba.weebly.com/uploads/1/3/4/0/134042469/togabonefozipevul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465402/normal_60369b05c8eb5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381964/normal_5fd60f4fe85a2.pdfIn PDF document text
    • http://becloud.website/arturia_microbrute_se_analog_synthesizer45fw8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417129/normal_6016e653dbce2.pdfIn PDF document text
    • https://definifizuzum.weebly.com/uploads/1/3/4/7/134759181/9614dfbf.pdfIn PDF document text
    • http://donbetosstreettacos.com/766551191438uh12.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/intracerebral_hemorrhage_hypertension_guidelines.pdfIn PDF document text
    • http://jexamovofu.epizy.com/dopugosi.pdfIn PDF document text
    • http://roxusenedo.epizy.com/78604887369.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/bewajetirematagipovunudop.pdfIn PDF document text
    • https://s3.amazonaws.com/jovekus/vudosis.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_off0000d939.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD939 5372 bytes
SHA-256: 241c67ad4e1c4a161af8d08d21387e0db9411ecd1c0255ca2cb53ce77f57bbb6
font_01_sfnt_off0000eb53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB53 10028 bytes
SHA-256: d46400388c0b52a81718a6c50f228c1ae77c47442ad253b380c8a5f64f8c9126