PDF malware analysis — malicious · cceda9ecaa696183

MALICIOUS

PDF

59.5 KB Created: 2021-01-16 12:45:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23

MD5: 125bf98c48df36c92351503edb398f20 SHA-1: 525559ea43a025f38f92b3a8a5a5551850eb90cb SHA-256: cceda9ecaa696183c50a7db2e4b0d752789dd50c380e648eef8d56cdf6de8036

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links pointing to a known malicious redirector, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, suggests a lure related to a 'Euro pass cv template', which is a common phishing pretext.

Machine Learning

Nyx PDF Classifier malicious score 0.9981

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
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://ggtraff.ru/aws?utm_term=euro+pass+cv+template In PDF document text
- https://cdn-cms.f-static.net/uploads/4382194/normal_5fd27dbfb011c.pdfIn PDF document text
- https://site-1180637.mozfiles.com/files/1180637/five_nights_at_freddy_s_4_gameplay.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403557/normal_5fa744bf01c57.pdfIn PDF document text
- https://gaxizizobepebi.weebly.com/uploads/1/3/0/7/130740618/29e40a32a.pdfIn PDF document text
- https://site-1174826.mozfiles.com/files/1174826/top_likes_for_instagram_photo_splitter_apk.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4461746/normal_5ff550244a112.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/nitizobuv/zosiregarolejexafutat.pdfIn PDF document text
- https://s3.amazonaws.com/woxotopapozokev/abzurdah_libro_completo.pdfIn PDF document text
- https://s3.amazonaws.com/dojonuta/2546118079.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_off0000af65.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAF65	5096 bytes
SHA-256: `9542b9f8a1e33fc56c399d1e2f4a8a5fcdfc29f05a559ecaa841e705264e389c`
`font_01_sfnt_off0000c0a8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC0A8	9812 bytes
SHA-256: `6dd861dc9a545a943631d9645aa16a6cd3fe491f1b67cc346c9f3edc8e918b51`

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