PDF malware analysis — malicious · 1f5fed6201e04cbd

MALICIOUS

PDF

77.2 KB Created: 2021-02-25 09:18:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: 8e3a6b8d4f22221f667cebb19e69d965 SHA-1: d9ed10333f8070e8eedb3aacfac0aabaed4ef4ac SHA-256: 1f5fed6201e04cbd613de9ff4ec116f153f43bc8558f525b461fdd1380084c5d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains an embedded URL that redirects to a suspicious domain, likely intended to host phishing content or malware. ClamAV detection and ML classification strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to behavioral psychology, aiming to trick users into clicking the malicious link.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/aws?utm_term=what+is+the+difference+between+functional+and+dysfunctional+behavior PDF link annotation
- https://birulivalofa.weebly.com/uploads/1/3/4/0/134013213/666450.pdfIn PDF document text
- https://mumetimobenuja.weebly.com/uploads/1/3/2/3/132302956/wepupa.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379369/normal_60370cad900c0.pdfIn PDF document text
- https://cdn.sqhk.co/tibakekavero/DwHMwih/wimapuxaduk.pdfIn PDF document text
- https://pidowiwosuzaji.weebly.com/uploads/1/3/0/9/130969191/xazijitesogu.pdfIn PDF document text
- https://cdn.sqhk.co/rekubapapup/eXbpjgg/talking_tom_cat_game_download_uptodown.pdfIn PDF document text
- https://motisodufar.weebly.com/uploads/1/3/5/4/135400919/bokijag-wupoduzokisipuj-wamuvusitoboxa.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/zebarufuridorur/can_we_video_from_linkedin.pdfIn PDF document text
- https://s3.amazonaws.com/tutasujal/zopipununarunusufub.pdfIn PDF document text
- https://s3.amazonaws.com/lijulijowivaze/gejala_jantung_koroner.pdfIn PDF document text
- https://s3.amazonaws.com/sulasatevirexo/56719706077.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f277.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF277	5516 bytes
SHA-256: `752c8f4cc97f69dda40ac8598dd7fdbf0a60ef539fc8876cb6d2fdf8bc24e1b7`
`font_01_sfnt_off00010551.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10551	9996 bytes
SHA-256: `e5d5f71e1cdc1ee113d4678aedd73654871effde9cbaec79b845d05698181577`

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