PDF malware analysis — malicious · 4b8f98c2967cecd8

MALICIOUS

PDF

68.1 KB Created: 2020-12-29 18:51:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: f4e738a489c182e81deadd9017df4bea SHA-1: ef9ff7fe9c935e16002db67f425f9878f5034792 SHA-256: 4b8f98c2967cecd834563303a1127c09d0a32fce208f676160eba544ca4b6fd0

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 0.9997

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://traffset.ru/123?utm_term=hidden+bodies+plot+summary+spoilers PDF link annotation
- https://static.s123-cdn-static.com/uploads/4370071/normal_5fc3c13643219.pdfIn PDF document text
- https://cdn.sqhk.co/jesisuvov/f0FOgeX/xefun.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4415334/normal_5fc540cd42e22.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/liluvad/ziwanirafubax.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a951466b-b9a0-47c3-abb2-f0c2359b2966/presto_heat_dish_costco_price.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f1111c8a-5638-4625-a1a2-3c320a018eae/32711397689.pdfIn PDF document text
- https://s3.amazonaws.com/sezebepit/doziwibukaledujirijetebex.pdfIn PDF document text
- https://s3.amazonaws.com/wixatax/merry_christmas_everybody_sheet_music.pdfIn PDF document text
- https://s3.amazonaws.com/tadovu/learn_to_fly_2_hacked_unblocked_games_4_life.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/71be519f-c922-4545-b4a1-166a2f1429f6/kagan_cooperative_learning_strategie.pdfIn PDF document text
- https://s3.amazonaws.com/jimugivos/vezelemupowowumokug.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/60cef7fb-cb0c-4a62-bbef-78c09c97d688/82939130659.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_off0000cb2b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCB2B	5308 bytes
SHA-256: `7aab53dd43e3f02919c70e034c6b8c5791532ef012ca8accdc12e8cb2888fe1c`
`font_01_sfnt_off0000dd17.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDD17	11328 bytes
SHA-256: `c2f32d72c59315ef50d0f074b4e7a57e49286d638d7a26bb86c7e400cde70eb7`

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