Malicious PDF — malware analysis report

Static analysis result for SHA-256 74011b54f4f2afca…

MALICIOUS

PDF

65.3 KB Created: 2020-12-05 21:16:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1f196f724ff230a10209d7ffce9f2465 SHA-1: 2e07a8681ca45fa057e3593f4998b4b7e02aaa7b SHA-256: 74011b54f4f2afca2a7bd6e856af3fe96ebf61239db858d0ad5dc37f1b63f387
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a link to a known malicious redirector, disguised with a query parameter suggesting it is a doorbell manual. ML classifiers and ClamAV also flagged this file as malicious, indicating a phishing or trojan distribution attempt. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/123?utm_term=physen+wireless+doorbell+manual+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4375355/normal_5f89f6f749315.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477629/normal_5fb8e46debf65.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401540/normal_5fcb21e63c798.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484118/normal_5fa9a4ef395a7.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/vuzufexarevima/tajaxido.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/45307587049.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/bollym4u_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/wuzeji.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/characters_of_spring_awakening.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/frost_mage_aoe_leveling_guide_wow_classic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a85b9ef-766f-45a6-a132-84832b514446/1030537766.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dc4f8d1-d0aa-4f5c-9e13-4fd534b4217c/76048700678.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec59d08d-9c8d-4db1-9065-2fca8795aa1d/moana_online_free_movie_full.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65df769c-441e-4b56-a962-197845fd5225/fexel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b7abcb3-1cd5-410e-831f-751714972fc3/sefujizojupafif.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_off0000c06b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC06B 5616 bytes
SHA-256: 52b2607b6e0291375f7be306f31b53ce438e9f0fbfce7ea43dfcd75271ec4efc
font_01_sfnt_off0000d364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD364 10904 bytes
SHA-256: 1cff72f2649909db6b9e920683c311a87aadb259b03a2c4ac926bd23191d7c29

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