Malicious PDF — malware analysis report

Static analysis result for SHA-256 9108b8f26b26ded0…

MALICIOUS

PDF

76.9 KB Created: 2021-04-16 11:34:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2a57114029b599746e3db86b68e65eaf SHA-1: 9b59a37f083c6fa6896040be44a9ee0134086b02 SHA-256: 9108b8f26b26ded0c92a88f1f17d4b1cfdaf9cf48e74b34abd38ff6d3c72ef87
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/strik?utm_term=alexander+the+great+movie+director PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4473618/normal_603254accb8a6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455901/normal_5ff812403c1d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369505/normal_5ff78d7eb66f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465006/normal_600dd2494925e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422368/normal_6024c32ce85f1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410989/normal_5fc96032219fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423471/normal_6023b6f41fe38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416510/normal_604b6c9cd681c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477376/normal_602414902f8fa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459464/normal_5ff9c4e6dcd5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371536/normal_5fe52c49e4b40.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458125/normal_5fc73b652e53c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414701/normal_600cb3e6326da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370561/normal_6054617db1a68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448547/normal_603f846913a04.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375207/normal_5fe0b3bd76a73.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/3ab673f8-c898-43ca-8de0-a0d301104819/99189269336.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/gapage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2843959e-df82-4226-8103-7191df509fa1/singing_for_dummies_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc117c96-52c8-47ce-ade9-2d015e1e1b67/bipobifaz.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/60837736594.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/535f9c00-e36e-425b-9547-23f9a04f9370/kupato.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d19719bf-c9b7-40a3-abbe-827907095939/tepelimemirifawaluw.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_off0000ee5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5D 5292 bytes
SHA-256: 7e44fc119b5e2ba35c7c9fa27caab92f40f65f2559553fdd69c753b1d0a8bb08
font_01_sfnt_off0001003f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1003F 10844 bytes
SHA-256: d59b15dc5f0bf87b4f713e968e23fd151afaac429c4d41dd34da351d6cb79673

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