Malicious PDF — malware analysis report

Static analysis result for SHA-256 02e77b846138efd2…

MALICIOUS

PDF

72.8 KB Created: 2021-03-27 19:18:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 95b29adba07833c1bf250d4c87501199 SHA-1: 10aa5158fcb119498360e6da60bde5d369c28836 SHA-256: 02e77b846138efd2e7554fd46a2b2f4b5ab88e5ff2def7405e6592b7fe2f6f07
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 0.9998

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://pelibifir.ru/strik?utm_term=iwb+holster+for+taurus+pt140+millennium+pro PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416149/normal_60486f07328d6.pdfIn PDF document text
    • https://pevusipifo.weebly.com/uploads/1/3/4/8/134863194/supamojototuxobex.pdfIn PDF document text
    • https://dugaposiga.weebly.com/uploads/1/3/4/8/134857723/a25284079f9.pdfIn PDF document text
    • https://jesomufufasak.weebly.com/uploads/1/3/1/8/131872286/kotofolonanokot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453720/normal_6019fa9b3f742.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418013/normal_60262a0d82422.pdfIn PDF document text
    • https://kexekogu.weebly.com/uploads/1/3/1/3/131384418/2524259.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456998/normal_604322c90b826.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/wusone/mexowovozamokagivaxako.pdfIn PDF document text
    • https://e6f9d1db-9bad-45ba-a188-0e8e378e8087.filesusr.com/ugd/99b222_6234f0d43148459aae49e62be7a6e22f.pdf?index=trueIn PDF document text
    • https://ca30e0e0-ecf2-44ab-b6a2-fe26291458be.filesusr.com/ugd/34e21e_34cc68b1e8e04142ad686c1165c5af24.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/resixexi/26877687300.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/company_round_stamp_format.pdfIn PDF document text
    • https://70fbc5f3-53e4-4072-9ff7-a5862d19847b.filesusr.com/ugd/bb3bf9_90ccd9d3661245ce9081cd43c067705e.pdf?index=trueIn PDF document text
    • https://a0f88182-e1f9-4a9c-ba22-d5ce004c6985.filesusr.com/ugd/2f3216_84d7695f713f4b1f8f9ba73d8d529fac.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/346d1d39-0dec-41d6-a6cd-12f81b505866/vicks_cool_mist_humidifier_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/sears_craftsman_10_radial_arm_saw_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0905a314-a363-4d18-91ca-82cf0198a88e/52038820586.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_off0000dca3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCA3 5592 bytes
SHA-256: 124b01771898b44bbf7424fd14e35aa2d4f2a42516767868398d84d48ebb5696
font_01_sfnt_off0000ef92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF92 11136 bytes
SHA-256: cfceafbb7921793af1aa571c35313a7dc7f95413757ecb2ac9e24665558bc6b9

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