PDF malware analysis — malicious · 25a9358b5fb5db66

MALICIOUS

PDF

61.6 KB Created: 2020-12-10 09:34:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: 11e68cc13af32520b89c8add22daa43b SHA-1: b0a8103fb44bda7bdd149c39b891b57c229cbdea SHA-256: 25a9358b5fb5db66b5c32db46490fa2ea41233860b168265f8a871b1f404965b

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that leads to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, appears to reference a game, suggesting a lure to entice users to click the malicious link.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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
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://traffine.ru/strik?utm_term=jugar+super+crazy+guitar+maniac+deluxe+3 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4445890/normal_5fa4272bf1f6c.pdfIn PDF document text
- https://xedusajid.weebly.com/uploads/1/3/4/4/134444225/5d11d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451365/normal_5fcf4bf8564df.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/kakef/pepunixitupepafuxe.pdfIn PDF document text
- https://s3.amazonaws.com/vufupu/free_lowrance_owners_manuals.pdfIn PDF document text
- https://s3.amazonaws.com/dazinibonofobi/a_certain_magical_index_light_novel.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e3ae1ad1-81e0-490e-ab03-7d14f88474c2/nietzsche_on_the_advantage_and_disadvantage_of_history_for_life.pdfIn PDF document text
- https://s3.amazonaws.com/subud/act_practice_test_online.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc00a5311f6a4198480ec6e/t/5fc9eaff9309303fb8345098/1607068420198/30355689083.pdfIn PDF document text
- https://s3.amazonaws.com/firigugixujotov/rodobagotapolisakaba.pdfIn PDF document text
- https://s3.amazonaws.com/pisik/pokipana.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_off0000b19c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB19C	5764 bytes
SHA-256: `dc87abfd6328ea67552ae9d33b05bc7583a3636bf7b60c9056211ef86ae8cc85`
`font_01_sfnt_off0000c545.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC545	10784 bytes
SHA-256: `b80dce588fcd359a9ce48cadaba10f308692ef9586363b7153bf6ae4accf6331`

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