Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f2e62c23f7a83e1…

MALICIOUS

PDF

68.1 KB Created: 2021-01-08 18:56:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e00611550bf83a8145b5dce8ec1a9f6f SHA-1: 47db11f73008dc38d1de81f2cb1d97d0b2be886d SHA-256: 7f2e62c23f7a83e104ea8dea9dd0b636c3a8614c7cfd7b86b14ff05858d76cb0
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://traffine.ru/aws?utm_term=aashiqui+2+all+songs+mp4+hd PDF link annotation
    • https://noverike.weebly.com/uploads/1/3/4/3/134349253/8430356.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/3409757.pdfIn PDF document text
    • https://buwupejobo.weebly.com/uploads/1/3/4/2/134265589/supogugut_tafulez_fezana.pdfIn PDF document text
    • https://mevavenepid.weebly.com/uploads/1/3/1/6/131637679/nukosipiviponegob.pdfIn PDF document text
    • https://mobejameraxoluv.weebly.com/uploads/1/3/5/3/135316129/72893d6b1cc279a.pdfIn PDF document text
    • https://gukepofefefika.weebly.com/uploads/1/3/1/4/131437977/6b7cbc659827e09.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a732f4f-d448-4c39-bf39-6c95bb6784eb/nudojefesenirenegu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f55d726-9f16-4ddf-b1e8-052bffda1b24/morrissey_autobiography_free.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/eightfold_path_wheel_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9d67425-9409-473a-891c-7578bf3ee875/beowulf_kennings_list_with_line_numbers.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/gipizomixifivenuwamap.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/dispute_credit_report_on_credit_karma.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/definition_of_transformational_leadership_style.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000af63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF63 5612 bytes
SHA-256: 60224f6fedc323c0716902f302ff2b409cd71014cb217571feff1758c6b3818b
font_01_sfnt_off0000c25f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC25F 10400 bytes
SHA-256: 5b8cbb57e20d5fc7bf05a0cd9b6421041d570435071d0882176becdbed75ffbe
font_02_sfnt_off0000e60f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE60F 18776 bytes
SHA-256: c8938f31d3f670f691d038f05f77034c8d93292ebb863cf55fe0798ee60354dc

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