Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3162396e5cbc288…

MALICIOUS

PDF

58.8 KB Created: 2020-11-17 19:05:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 137b08a71f47125d1e0e996fce6334b1 SHA-1: da9246eeedf520fbc986b7db0d61319a13c5d118 SHA-256: e3162396e5cbc28808df20833ade8127a484c43ec8e4081c9064be0e5f662fe7
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 0.9996

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://traffnew.ru/123?utm_term=fisher+price+dune+racer+battery PDF link annotation
    • https://notilapixoto.weebly.com/uploads/1/3/4/3/134397855/xaginanuzev_wukan_rexosana.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418764/normal_5faf7259dcfb2.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/ce02014a20d.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/ff29b383-c39a-4c9a-9d19-c2c27a8d06ce/bavifosuruzegoreg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ad2cdc6-b4d4-413d-ae83-9c4c99525084/14767673571.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/desetagu.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/quit_claim_deed_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35669d17-451c-478c-81e8-def9ce8dfb00/71354889188.pdfIn PDF document text
    • https://s3.amazonaws.com/lesepapusojifax/taichi_panda_mod_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c41283ba-047c-482a-8d01-c04d9f676b44/82414494131.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79ba3b07-88b4-46b9-a295-31c4d467d0f8/puweremaravazadibowawumeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f80f7015-a3bd-4fc7-93b0-86b12c74a578/80238379492.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_off0000aa3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA3C 5324 bytes
SHA-256: ec56971f61387be5689ae473fd912c562ec661634ed139adb146ef921b40da91
font_01_sfnt_off0000bc53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC53 10204 bytes
SHA-256: a708652f2f9d35c941cff333fd3f04cee294f22917397c41e94f5d99697ef5cb

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