Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dad80a0f01d78fe…

MALICIOUS

PDF

71.1 KB Created: 2020-11-16 21:40:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: ef7b66d024c812f5f8a740a4411103ea SHA-1: d8d30b06140f8f96081b5f4c897f8b45a61e4b5d SHA-256: 0dad80a0f01d78fed6dd49deae906118c428a65355840c0b6e1b4cf2939e19b8
156 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9997

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://trafficel.ru/strik?utm_term=codigos+de+tv+para+control+universal+panasonic PDF link annotation
    • https://pitimonajavigo.weebly.com/uploads/1/3/1/3/131383860/zurozagedimel-wenexajegubes-dulufine.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373243/normal_5f95a04475079.pdfIn PDF document text
    • https://titawijuneve.weebly.com/uploads/1/3/4/0/134012454/sogepividavotu-besuw-katoso-feguzinazud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383702/normal_5f9910e0b49a7.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/vifusupegiza/the_fountainhead_in_telugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e078a04-fd43-467b-9667-8b014a297639/nazi_zombies_portable_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/interior_angles_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0539ecac-f00d-47d7-9b10-5c4714db30fb/continental_army_uniforms.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/gaxopuzawopedusez.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/family_service_credential.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/88182717284.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/ear_ringing_omen_happy.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/89510059311.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

Related samples 5

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_off0000d69e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD69E 5208 bytes
SHA-256: ec2583c7d83f1141919cfa9ba8f1726cf35b51bba09dacebc5ec5d07a4a4d9c9
font_01_sfnt_off0000e86b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE86B 12156 bytes
SHA-256: fecff27a5c775a61a76cc5a26c64edeaf67cae8c89631d5eff25af86ad1f81df

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