PDF malware analysis — malicious · 4fa3a769b04092d4

MALICIOUS

PDF

117.9 KB Created: 2020-12-01 16:05:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26

MD5: 5404369d3728a199b28e4c64a9db52cd SHA-1: ec92f7139774fb9c398dd57bf14f2fcdd635c9c6 SHA-256: 4fa3a769b04092d4162d3dd8fa85f4d349c15344d12b418245387814c89105c3

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of an external URI and the overall detection suggest a phishing attempt disguised as a vehicle advertisement.

Machine Learning

Nyx PDF Classifier malicious score 0.9994

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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/strik?utm_term=ford+galaxie+500+4+door PDF link annotation
- https://cdn-cms.f-static.net/uploads/4465262/normal_5fc37ed516dd0.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/6c4ac57b-8d95-4e07-9e7e-3dfe4f9f8634/procurement_audit_procedures.pdfIn PDF document text
- https://s3.amazonaws.com/nefagolom/west_bend_microwave_red.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a9ae5dc2-fa07-4280-b9c4-af17a33c973a/lidot.pdfIn PDF document text
- https://s3.amazonaws.com/megodipewukitoj/philadelphia_experiment_tesla.pdfIn PDF document text
- https://s3.amazonaws.com/fedufiporara/60919697388.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7339d920-1a9e-4717-bdd6-3e40c3afdf78/11397412565.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/415cb1ce-83ae-4954-9bbc-584fcf2f05ee/bavulugalukis.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0dbcbbf71053ccb0ffb78/t/5fc319e73c6ccf69f3c46408/1606621673123/71832563655.pdfIn PDF document text
- https://s3.amazonaws.com/kavitokolezub/alipay_vs_wechat_pay.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_off00019168.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x19168	5192 bytes
SHA-256: `cf02be1ba179f20659df335f6466be76e82dbbcee959af14750a49910e813203`
`font_01_sfnt_off0001a331.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1A331	12432 bytes
SHA-256: `eeac8a8c7cd56414b4eeb26e3caca53bcb515b28b086cf2d48ac34b9a74ff1fe`

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