Malicious PDF — malware analysis report

Static analysis result for SHA-256 2307ae5f8b647afb…

MALICIOUS

PDF

73.7 KB Created: 2021-01-28 13:21:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 6ae537d00270ac0fd4eecaf80ebef9f6 SHA-1: d3e4256a15fa4c904b2fe61645bcaca8fb241775 SHA-256: 2307ae5f8b647afb59e92bfe1385fd2ea30927a872548f9839c0c626853bd35a
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, a technique often used in link farms or for phishing. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as a phishing trojan. The embedded URL and the document body's reference to 'Ebay retract bid reddit' suggest a lure to trick users into visiting malicious sites.

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://maypoin.ru/123?utm_term=ebay+retract+bid+reddit PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4413702/normal_5fcaa917876f1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426257/normal_5ff9061388d50.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465147/normal_5fc80ba386e0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488100/normal_60067ff1034d0.pdfIn PDF document text
    • https://wididalinur.weebly.com/uploads/1/3/3/9/133986726/87d027e.pdfIn PDF document text
    • http://juniwasobevi.22web.org/tewerotonejupotusinup.pdfIn PDF document text
    • https://jegivobepumo.weebly.com/uploads/1/3/4/4/134444156/84d6c84291630.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460966/normal_5ff7ea1c63dfd.pdfIn PDF document text
    • https://ribigitapupag.weebly.com/uploads/1/3/4/8/134887221/6454977f9b26985.pdfIn PDF document text
    • https://radojevujexoki.weebly.com/uploads/1/3/1/8/131871685/4212516.pdfIn PDF document text
    • https://zukikopan.weebly.com/uploads/1/3/0/7/130775822/6059829.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389582/normal_600e49e04280a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458634/normal_600b54b1d5ab4.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/mokixetat/95598416599.pdfIn PDF document text
    • http://kebanibaru.epizy.com/sticker_printer_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/mens_formal_wear_online_south_africa.pdfIn PDF document text
    • http://vugugevijoxudi.rf.gd/bintulu_port_information.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/42722435434.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/alaipayuthey_movie_songs_free_starmusiq.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 8

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_off0000e29c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE29C 4924 bytes
SHA-256: 8abb15eb8cac6a8cd442827b69c1f6459a48e09888def41551b64a9d89c163a3
font_01_sfnt_off0000f371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF371 11172 bytes
SHA-256: 5a3e211f208ab67ce1997864aa802fa19dbe194cc1fb1c982e1628ced0d2c982

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