PDF malware analysis — malicious · 31cec7c03bbdd831

MALICIOUS

PDF

59.5 KB Created: 2020-11-21 08:16:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26

MD5: f02f63fc5d0a017709bc3ca4b43c5697 SHA-1: 3bfc8f6e79d8506038202f4529b96369966f79d8 SHA-256: 31cec7c03bbdd8315f37aac819b5bc33b8a0686f8f544acdc3b65d98960a4b2d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, traffnew.ru, which is likely used to host a malicious payload or redirect to a phishing page. The document body, though heavily obfuscated, contains references to 'Gwinnett county school calendar 2016-17' and 'wkhtmltopdf', suggesting a lure to disguise the malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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=gwinnett+county+school+calendar+2016-17 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4371248/normal_5f9e363e5c8d2.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/vesubodufisi/wedding_anniversary_status_video_free.pdfIn PDF document text
- https://s3.amazonaws.com/kozibowisenatu/20812995950.pdfIn PDF document text
- https://s3.amazonaws.com/davolazupivowi/zarorexiwola.pdfIn PDF document text
- https://s3.amazonaws.com/zuponefi/79950801868.pdfIn PDF document text
- https://s3.amazonaws.com/zerepuzuze/xapasowemojinogi.pdfIn PDF document text
- https://s3.amazonaws.com/henghuili-files2/tensile_test_astm_e8.pdfIn PDF document text
- https://s3.amazonaws.com/kalufizefem/59309613428.pdfIn PDF document text
- https://s3.amazonaws.com/gurowozenupifi/income_tax_challan_281_in_word_format.pdfIn PDF document text
- https://s3.amazonaws.com/gomakobez/pdf_to_word_free_download_nitro.pdfIn PDF document text
- https://s3.amazonaws.com/sakaburepagase/95274354126.pdfIn PDF document text
- https://s3.amazonaws.com/xuxifuzituwu/sidurinojedokawiradubo.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_off0000a84c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA84C	5844 bytes
SHA-256: `ad0e31b07d6e289dd62985721a45502dc6dd82551a208a0fea766a8438e2c615`
`font_01_sfnt_off0000bc58.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBC58	10420 bytes
SHA-256: `4d67e29a708eff92405302b2e2703a69d7c789ec9784e47605e912488cdf1d6f`

Open this report in the interactive analyzer, or submit your own file for analysis.