PDF malware analysis — malicious · 1f4544400a16bbb8

MALICIOUS

PDF

65.4 KB Created: 2020-11-16 12:43:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 101cf0f3a8734669b8b6db9056b4fdc7 SHA-1: 2af06e29d9a2d1c310916a751d312ea8eb67920d SHA-256: 1f4544400a16bbb854a2bfa436be1b044144981c191cfc3449d9990961694d38

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://traffset.ru/strik?utm_term=plasma+burst+2+hacked PDF link annotation
- https://cdn-cms.f-static.net/uploads/4484804/normal_5fb255bf68349.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365541/normal_5f89d40da0472.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4428061/normal_5fa45878a0440.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418184/normal_5fae24978ad3f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408721/normal_5f9c3a4914f84.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385427/normal_5f96df9857531.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/zidosozawok/37900781756.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a3e9bb68-1845-4016-89e4-dab76cb61c8a/neketepajupi.pdfIn PDF document text
- https://s3.amazonaws.com/vesubodufisi/past_tense_of_buy_in_spanish.pdfIn PDF document text
- https://s3.amazonaws.com/gadumagabusodel/118_blood_sugar_in_morning.pdfIn PDF document text
- https://s3.amazonaws.com/niporofez/vikexegogapumejuxipe.pdfIn PDF document text
- https://s3.amazonaws.com/tadovu/automatic_transmission_book.pdfIn PDF document text
- https://s3.amazonaws.com/medadele/12412868497.pdfIn PDF document text
- https://s3.amazonaws.com/bifamomove/commercial_affidavit_of_truth.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_off0000c291.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC291	5516 bytes
SHA-256: `91f9e4b70afee7d133e46a8c7b3ca1f6fbacd2c37d17ce92b8cd7a7cc19cd3d2`
`font_01_sfnt_off0000d51f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD51F	10632 bytes
SHA-256: `19ffdfda863974f236ca7fa06f5a509fb51f3747e671011fcb882e190ff88172`

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