PDF malware analysis — malicious · 2df7b04bc04e64e6

MALICIOUS

PDF

79.4 KB Created: 2021-02-25 14:42:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07

MD5: a1d93a243ea528b39ffcd15fa9cbf044 SHA-1: 9464b6b101e8266397645016fee7de9d0ed6865c SHA-256: 2df7b04bc04e64e68f99bda99868be400022fed5756a850a886d7520aa54304b

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, with a critical heuristic firing for PDF phishing. An external URI pointing to 'maypoin.ru' was extracted, suggesting a phishing or malware distribution attempt. Although no scripts were directly extracted, the PDF structure and embedded URLs indicate a likely attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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
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/award?keyword=blood+bowl+2016+rules+pdf PDF link annotation
- http://13millions-warzone.store/courageous_conversations_compassileh2.pdfIn PDF document text
- http://xejevojesinil.22web.org/80721299753.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421215/normal_602b37ea2e26c.pdfIn PDF document text
- https://cdn.sqhk.co/zarejesorufo/dliceia/wufefapimalipapezixeket.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4455387/normal_6005e65d48a04.pdfIn PDF document text
- https://cdn.sqhk.co/tavikagisato/hdzhjgd/bumasa.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/damerirazib/zejiwidowu.pdfIn PDF document text
- http://miviguwi.epizy.com/amma_images_kannada.pdfIn PDF document text
- https://s3.amazonaws.com/zategafozasiru/todeziravexibusupo.pdfIn PDF document text
- https://s3.amazonaws.com/dinigugaxej/amaranthe_amaranthine_piano_sheet.pdfIn PDF document text
- https://s3.amazonaws.com/bezorito/formal_dresses_stores_near_me.pdfIn PDF document text
- http://mevutaleb.epizy.com/14935557632.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_off0000fa34.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFA34	5588 bytes
SHA-256: `0bf2bee4a7526da84da982d9e26883a7c70950382e92766127c577980b036db0`
`font_01_sfnt_off00010d5b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10D5B	10300 bytes
SHA-256: `21682cad327b07cd926e9659b5f1d7486f12e4d2f1592f9dd70865c34c876ea5`

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