PDF malware analysis — malicious · 1309238e6fb38834

MALICIOUS

PDF

68.4 KB Created: 2020-11-18 07:11:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 80cbfb1df17023c93f1e546ade331a28 SHA-1: d489c568dd71a29002180dee876f9e496184cb00 SHA-256: 1309238e6fb38834576a96662323417011fe28815edd2dc2e55af590124e6fa0

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely for credential harvesting or malware delivery. The document body, though heavily obfuscated, appears to contain metadata related to PDF generation and potentially misleading text.

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://trafffe.ru/123?utm_term=toyota+techstream+guide PDF link annotation
- https://cdn-cms.f-static.net/uploads/4378641/normal_5f8f3703d7eae.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4460446/normal_5fa73d23eaeef.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365619/normal_5f87fd6023136.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/nisoxow/99749827938.pdfIn PDF document text
- https://s3.amazonaws.com/babuxufarizuxur/85664107091.pdfIn PDF document text
- https://s3.amazonaws.com/sasufufa/criminal_justice_mainstream_and_crosscurrents.pdfIn PDF document text
- https://s3.amazonaws.com/popagexexoza/sonic_adventure_chao_garden_guide.pdfIn PDF document text
- https://s3.amazonaws.com/sezutuma/zeneviriwanixosewa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/639311b4-ef1d-49da-be3d-a73be22b6025/bazugopama.pdfIn PDF document text
- https://s3.amazonaws.com/sedimeraxufi/63697842656.pdfIn PDF document text
- https://s3.amazonaws.com/divexikav/hibiscus_schizopetalus_hybrid.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9a312ab2-e2a8-4bac-9a4d-ed5dd79da408/94511833013.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_off0000cfb9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCFB9	5372 bytes
SHA-256: `c17ac854ec9d5e18564ff166158d9dd1402bdd53f33c58270ee545b3592a2041`
`font_01_sfnt_off0000e1d8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE1D8	10376 bytes
SHA-256: `5d2b312d159db969b172b8ba4433c2886b1d317857b9391f1565fa737fc492ba`

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