PDF malware analysis — malicious · 6c6c43d03f37aa0e

MALICIOUS

PDF

73.4 KB Created: 2021-02-07 05:58:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 4e1bbf6a9f58905b02a5140649c64a57 SHA-1: 655ebe3ec06860ef99897d300f72180dbf775c07 SHA-256: 6c6c43d03f37aa0ee9748db9ef9cd9a5aaf55b8a6f1dfc7c054f43675d84ccc3

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, identified by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to a tutorial PDF. The presence of external URIs indicates an attempt to redirect the user to a malicious site, likely for phishing or malware 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://seumenha.ru/123?utm_term=rslogix+tutorial+pdf PDF link annotation
- http://legalvictory.group/satisfying_slime_videos_before_bedx6sje.pdfIn PDF document text
- http://instofficial.online/97424437476x9bot.pdfIn PDF document text
- https://cdn.sqhk.co/kujusiru/yjbZcja/xagon.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/mafavuzenoliki/langman_s_medical_embryology_12th.pdfIn PDF document text
- https://s3.amazonaws.com/legesiliv/62147020362.pdfIn PDF document text
- https://s3.amazonaws.com/bevekizadoxuj/photo_sharing_app_between_iphone_and_android.pdfIn PDF document text
- https://s3.amazonaws.com/jivala/3752169939.pdfIn PDF document text
- https://s3.amazonaws.com/vojapu/multi_layer_inlay_templates_uk.pdfIn PDF document text
- https://s3.amazonaws.com/lizuseguwix/amazon_stock_earnings_report.pdfIn PDF document text
- https://s3.amazonaws.com/lupuvogotog/vikugo.pdfIn PDF document text
- https://s3.amazonaws.com/pojikovewijeja/nipev.pdfIn PDF document text
- https://s3.amazonaws.com/bejexe/kartilya_ng_katipunan_emilio_jacinto.pdfIn PDF document text
- https://s3.amazonaws.com/senodiw/banshee_season_4_episode_6.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_off0000e237.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE237	5284 bytes
SHA-256: `4e14c95fe744c1b9357ddf6829f957f4d203e475d8cef6320ce642129e8d9824`
`font_01_sfnt_off0000f44b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF44B	10776 bytes
SHA-256: `ec5643d236f015747e9f66ac6cb3af4aa95b515b8d3b4669dd3e10831cdea742`

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