PDF malware analysis — malicious · 61add5543a0b8e7b

MALICIOUS

PDF

70.2 KB Created: 2021-01-06 18:26:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 2a1f3555ba70ed11ac9618c9f897252a SHA-1: 954199a619486ea5ba23486d64f11b440ad48767 SHA-256: 61add5543a0b8e7b04ef30bc783f3505b16a3f0a12e574e44899c5e0ad94308d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of phishing or malware distribution. The ML classifier and ClamAV detection further confirm its malicious nature. Although no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://traffnew.ru/123?utm_term=vestimenta+de+los+80+mujeres PDF link annotation
- https://cdn.sqhk.co/kurinunuwor/9WRjaBx/netflix_movie_catalogue_uk.pdfIn PDF document text
- https://tomutoremaduv.weebly.com/uploads/1/3/1/3/131398477/doruwelote.pdfIn PDF document text
- https://rifuvosibimav.weebly.com/uploads/1/3/5/3/135383082/37aff956.pdfIn PDF document text
- https://cdn.sqhk.co/soxoxefumuv/hfHqMhf/mod_minecraft_1._7_10_sword_art_online.pdfIn PDF document text
- https://tutetalugono.weebly.com/uploads/1/3/1/8/131857120/kogonojazivi-sakifodifavew.pdfIn PDF document text
- https://cdn.sqhk.co/sazobenapur/hjgRetr/12374355288.pdfIn PDF document text
- https://misirukizos.weebly.com/uploads/1/3/4/0/134017349/kiruwiwuzolidizojepa.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/sibenuvokiwuz/chamberlain_driveway_alarm_user_manual.pdfIn PDF document text
- https://s3.amazonaws.com/zuses/body_parts_worksheet_for_grade_1.pdfIn PDF document text
- https://s3.amazonaws.com/pexodugosa/34042813020.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_off0000d3ff.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD3FF	5348 bytes
SHA-256: `76884d022b0fe828735a00f04ab2e433b9206a4fb0b23dbc6506e08e12d79ec5`
`font_01_sfnt_off0000e60e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE60E	11292 bytes
SHA-256: `482e2ebd79c3a86fd208aa2e6c394356e6ce7151732f40d2d50c40a4bbba403b`

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