Malicious PDF — malware analysis report

Static analysis result for SHA-256 20d9475120d7d649…

MALICIOUS

PDF

75.9 KB Created: 2021-03-15 11:41:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 17078bc4ca41db0e05a7656ed2f1321b SHA-1: c5abdc09f826a477d7bd9c6aa9ae6f3fbec13c10 SHA-256: 20d9475120d7d6493845b775cc0866f5994513672cf01121b46e3efc6e723a59
156 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 0.9998

Heuristics 5

  • 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.
  • 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/wix?keyword=always+sunny+female+characters PDF link annotation
    • http://badgesverified.com/144566808300e1wd.pdfIn PDF document text
    • http://plafond.xyz/39716589540qyig7.pdfIn PDF document text
    • http://50offstore.info/what_are_the_odds_of_quantum_tunnelingo6ty5.pdfIn PDF document text
    • http://yarrebitteh.online/doctor_sleep_cast_stephen_kingo3g7c.pdfIn PDF document text
    • http://getdouche.xyz/8922578244s88k2.pdfIn PDF document text
    • http://dezlice.ru/wilderness_survival_romance_novelsa8u8q.pdfIn PDF document text
    • http://natorg.fun/how_to_convert_graco_nautilus_3-in-1_car_seat_to_boosterf2akm.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/wutezigojuxi/mironenami.pdfIn PDF document text
    • https://s3.amazonaws.com/verirejon/bowalisimokazonugazigi.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/137960456.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/bitbucket_api_folder.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/apollo_munich_health_insurance_kyc_form.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/archicad_18_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/terepowasuvowubuxex.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/batman_begins_full_movie_tamil_dubbed.pdfIn PDF document text
    • https://4cd5a77a-be8d-44ba-8952-4177873115c4.filesusr.com/ugd/930050_775103319f07462cbcca3a99b33b2faa.pdf?index=trueIn PDF document text
    • https://88749095-6fd7-453f-8e8a-15b48fe47dd1.filesusr.com/ugd/e4d7df_337eb1df48d349b29916b6d1dc869867.pdf?index=trueIn 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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC6B 5304 bytes
SHA-256: 860026e157802409846d3e56b7593039417da36c021089742a9a4f25bfec3426
font_01_sfnt_off0000fe68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE68 10540 bytes
SHA-256: 7edb0e27fc2bb471e0eb3ff4952018a111f076397b0a5a650f72db976b8b3863

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