PDF malware analysis — malicious · 7da3a127541a6b8a

MALICIOUS

PDF

67.3 KB Created: 2020-11-24 06:44:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 51d4cb2878aaa3e64a421bfd04b6d05d SHA-1: 22c8240a413bbdf05800746f3ab5f79f6a222356 SHA-256: 7da3a127541a6b8a1d03ef231fac0d6057e3cbb8dfc11278acf76ceb0f2ced97

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document flagged by ClamAV as a phishing trojan and by an ML classifier. It contains an embedded URI pointing to 'trafftec.ru', which is likely the primary malicious destination. The document body, though heavily obfuscated, appears to be related to phone case comparisons, suggesting a lure 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://trafftec.ru/strik?utm_term=caseology+vs+otterbox PDF link annotation
- https://cdn-cms.f-static.net/uploads/4368243/normal_5f8e972bed27b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369486/normal_5f9e62312f82b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404964/normal_5fa6b6ac0cee9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370068/normal_5f992f3e3bcf0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407813/normal_5f9e66844b162.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/zamuriza/mevezigajarimiwu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ed7bbe82-0e23-4a04-9078-7fbe2642b37b/clash_of_clans_apk_update_kindle.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4b220a7d-6aa5-4a32-afcd-4384fb539522/kepixozubazasul.pdfIn PDF document text
- https://s3.amazonaws.com/livivuvuwugeb/15332950860.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/262598dd-5634-4b6c-afe0-3dae8c7cd5e8/toshiba_55_inch_tv_manual.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e28c48ab-d74f-48d6-8443-63d91202f5b9/famaxuridozifelipagegesox.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_off0000cb05.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCB05	5128 bytes
SHA-256: `61a34f101f7d67775b54155242caf5c3a7bed9b706a1e2ace9f6d9d885815e94`
`font_01_sfnt_off0000dc92.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC92	10512 bytes
SHA-256: `cf3bc265b936cfc51a281beb2f1ec7c1a3de68585f60c6ff143629b5759ceb41`

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