PDF malware analysis — malicious · b73d68dfbe3ee5d3

MALICIOUS

PDF

75.5 KB Created: 2021-01-16 23:06:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 074cc804c1c2005fa9e534b681c45920 SHA-1: 6c0f7ccbb34ea8b44ed1d365035cd581bd6601d5 SHA-256: b73d68dfbe3ee5d3fa0f5cdd6e7a7bfea206f729798ade3959ff82b9968f9bb6

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically 'https://trafffi.ru/123?utm_term=arbonne+nutrition+asvp+review', suggests the document is designed to redirect users to a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with phishing or malware distribution tactics.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://trafffi.ru/123?utm_term=arbonne+nutrition+asvp+review PDF link annotation
- https://cdn.sqhk.co/ruwonumatag/dgcwJAo/10191706457.pdfIn PDF document text
- https://site-1175508.mozfiles.com/files/1175508/sprint_drive_password_reset.pdfIn PDF document text
- https://cdn.sqhk.co/muvetowiripa/dicAur0/56763308333.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4485930/normal_5fbc9efe2506a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380694/normal_5f901bac34f68.pdfIn PDF document text
- https://cdn.sqhk.co/xidupesijij/fNOgfjd/94662312363.pdfIn PDF document text
- https://site-1171825.mozfiles.com/files/1171825/catalase_assay_lab_report.pdfIn PDF document text
- https://cdn.sqhk.co/nedupugifuka/PggFnic/field_hockey_coaching_jobs_near_me.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4490930/normal_5fc819ab70ef6.pdfIn PDF document text
- https://cdn.sqhk.co/sopiloroda/Picdb29/26782831656.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/wukevirenesu/venaba.pdfIn PDF document text
- https://s3.amazonaws.com/jezaxojipevu/5687115193.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_off0000ea47.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEA47	5060 bytes
SHA-256: `f0efa81841d277b2be3fe72998ac2508ff44a3f130edc5ac316ff23b1e01b6c3`
`font_01_sfnt_off0000fb9c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB9C	11096 bytes
SHA-256: `2a30bf91fab25b8e08dbe68f8921061f3ce7b21a02e838f6b2987f0530369a81`

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