PDF malware analysis — malicious · 4c0b7838562bf29b

MALICIOUS

PDF

59.0 KB Created: 2020-12-21 07:47:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31

MD5: 78bcca48aecba51e936538c1fe8b7b19 SHA-1: 58bedb4089f42c94ed57bd86b47896ea93cbc998 SHA-256: 4c0b7838562bf29b8cd1079b30f4bc60b7029a0573cfabcc6dd4d5ed2c4d68c6

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 Pdf.Phishing.Trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The document body, though heavily obfuscated, contains text related to 'La fitness la verne hours', suggesting a lure to a fake information page.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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://trafficel.ru/123?utm_term=la+fitness+la+verne+hours PDF link annotation
- https://static.s123-cdn-static.com/uploads/4451563/normal_5fc4c0181ffcb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384652/normal_5fc1e7a211a26.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366340/normal_5fc695ccd513c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475737/normal_5fdbddfc780bb.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/fobupojowojon/instruction_planning_template_ks2.pdfIn PDF document text
- https://s3.amazonaws.com/pukiza/89859505463.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/111b7e11-41d2-47cc-be80-ef78f761cde7/xelokugawudobesif.pdfIn PDF document text
- https://s3.amazonaws.com/gekixadonuru/banjo_film_hd.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9117a4bc-8afd-4aa7-96ad-c9a51d1c9743/tumumalikesewisema.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/73b66492-77e3-4ec5-b431-c0cde1336340/70977951389.pdfIn PDF document text
- https://s3.amazonaws.com/midipes/73557794767.pdfIn PDF document text
- https://s3.amazonaws.com/moxekibupuru/zip_code_in_caloocan_philippines.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_off0000aadc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAADC	4856 bytes
SHA-256: `7a25a4e01816f54c355b7caee18e6981379bc4e874336d80c8753c5b1df0e456`
`font_01_sfnt_off0000bb62.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBB62	10700 bytes
SHA-256: `0fa300445c9e7ba92ecdb6aa9d3141375881b1e6349b5d4e8b052e4f02892562`

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