PDF malware analysis — malicious · 78e3d1997148b74f

MALICIOUS

PDF

63.2 KB Created: 2020-11-27 04:05:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 68b02e7a02f8f050e78afc4e2c5721c9 SHA-1: 274312c96a9b69c2600479d9f712b624d3b0a123 SHA-256: 78e3d1997148b74f0edf247e0342e02f642f4712ba9bd60d3380a018ef945429

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-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/123?utm_term=liberty+ridge+elementary+staff PDF link annotation
- https://cdn-cms.f-static.net/uploads/4366027/normal_5f8765448d3cf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365542/normal_5fa20dd6213fe.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4451210/normal_5fb817636c644.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4455208/normal_5fa42f206b1a1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4482882/normal_5fb56a77ea593.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4463272/normal_5fbb3cff0f3ff.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449395/normal_5fbe1bb4b2e0d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386363/normal_5f8ca6506ddc6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368223/normal_5f9922420f83c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469143/normal_5fc04c84b7a0c.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/pivetuzadujo/vubipuvo.pdfIn PDF document text
- https://s3.amazonaws.com/baxekojojexusol/mega_filmes_online_hdplus.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_off0000b8d5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB8D5	5412 bytes
SHA-256: `30f77e2a2efad1b3680bd41857ec4daef2d40f2c74f56ce9f319751b3cff61ad`
`font_01_sfnt_off0000cb2e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCB2E	11248 bytes
SHA-256: `6d5f4fe553cbf268d394776634da550e8d8db00159bd4b6cc939987163925697`

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