PDF malware analysis — malicious · 5ed93e56efef0e13

MALICIOUS

PDF

68.2 KB Created: 2021-01-17 23:01:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 789acc3829d15018eb5304035d7ea335 SHA-1: b47c046bc4be3fc8be14aceb33e5e72add51521b SHA-256: 5ed93e56efef0e13741fe8926e6c14006cb10bc5f7bccd4170c1ab8b04173e8d

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 high risk score. It contains an embedded URL pointing to 'trafficel.ru', which is likely used for phishing or to download a secondary payload. The PDF structure itself does not contain executable scripts, but the presence of the malicious URL strongly suggests a 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
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://trafficel.ru/123?utm_term=p+y+q+tabla+de+verdad PDF link annotation
- https://cdn.sqhk.co/xeveweno/heUDbhj/economist_intelligence_unit_democracy_index_2016.pdfIn PDF document text
- https://site-1244863.mozfiles.com/files/1244863/argox_os-_214_plus_driver_xp.pdfIn PDF document text
- https://duvonejubuzal.weebly.com/uploads/1/3/4/3/134321315/3492213.pdfIn PDF document text
- https://joduzowulidu.weebly.com/uploads/1/3/4/4/134435513/d96f488d6351627.pdfIn PDF document text
- https://site-1173237.mozfiles.com/files/1173237/68862849536.pdfIn PDF document text
- https://biduvokiket.weebly.com/uploads/1/3/4/3/134367510/8349056.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/jenisozazewubo/jodejofular.pdfIn PDF document text
- https://s3.amazonaws.com/xakusineba/54131895943.pdfIn PDF document text
- https://s3.amazonaws.com/zifozujiwi/tasadesuzi.pdfIn PDF document text
- https://s3.amazonaws.com/zuguvoxoki/lupekudakurapujivafakoze.pdfIn PDF document text
- https://s3.amazonaws.com/davawina/newoga.pdfIn PDF document text
- https://s3.amazonaws.com/jevopemosod/pretty_format_json_vscode.pdfIn PDF document text
- https://s3.amazonaws.com/bubeto/audi_q7_2018_manual.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_off0000cacd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCACD	5072 bytes
SHA-256: `bc185300e11260af52f4a7ed413ef18e544d0cc4a1f43cf2975e6daa80923781`
`font_01_sfnt_off0000dc20.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC20	11840 bytes
SHA-256: `d68e81443080e8c7bfdbae8a248b9fd613799119d14ac570f3171a14c43e3476`

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