PDF malware analysis — malicious · 9b70dc1dbf602f4c

MALICIOUS

PDF

56.7 KB Created: 2020-11-23 20:18:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 912b934aa3c243e3ebed08f38db80b92 SHA-1: 266fac52cba8bae67f09f0d514ec7d29165fbfcc SHA-256: 9b70dc1dbf602f4cb3da5b541529b5cf94174c121e286a3c2ac80ff75bd150cb

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 0.9996

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://trafffi.ru/strik?utm_term=cummins+nta855+manual PDF link annotation
- https://sibomimotilelib.weebly.com/uploads/1/3/4/2/134235458/6910799.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409623/normal_5f9478ae88a9a.pdfIn PDF document text
- https://veraweno.weebly.com/uploads/1/3/0/7/130739577/mivetakeda.pdfIn PDF document text
- https://dotigima.weebly.com/uploads/1/3/4/4/134404546/388702.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369138/normal_5f8b10b270ea0.pdfIn PDF document text
- https://wovasemuzusalej.weebly.com/uploads/1/3/1/6/131636629/waxijefelege_vefimofuliredif.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452157/normal_5fa07b26b4880.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416506/normal_5fa7e7981b785.pdfIn PDF document text
- https://gesoroserazam.weebly.com/uploads/1/3/4/3/134310447/wulev.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/bubeto/17967142543.pdfIn PDF document text
- https://s3.amazonaws.com/nodetuxapabara/beethoven_sonata_no_17_sheet_music.pdfIn PDF document text
- https://s3.amazonaws.com/sefukirexuwekij/gerard_butler_movies.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_off0000a87e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA87E	4956 bytes
SHA-256: `a0fe59ce7645da56178c25b6771df18cf6724654d9eeb2a4ae0d6ff44d95dcb7`
`font_01_sfnt_off0000b947.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB947	8580 bytes
SHA-256: `59d8e11f71f8a0259dda7a2e126d3871ba3b815c7fc88369b380cd9a543f3250`

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