PDF malware analysis — malicious · 037ded7e13e6e278

MALICIOUS

PDF

60.1 KB Created: 2020-11-23 10:35:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: e8a0db9a2382ef108fb4aa0ed205460e SHA-1: bd2f78b500b414d1dcef219451554da11320d69b SHA-256: 037ded7e13e6e278a66b67204a52f2f066a5efa8c531f9d8a1883bae177558b7

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'trafftec.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into downloading a payload or visiting a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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://trafftec.ru/123?utm_term=mirth+connect+3.5.1+user+guide PDF link annotation
- https://cdn-cms.f-static.net/uploads/4462059/normal_5fbaf404cfea8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381738/normal_5f97baab7d17d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379969/normal_5fa5f131c85b3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368479/normal_5f939da7ed697.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385231/normal_5f8ede80634fc.pdfIn PDF document text
- https://nijubalalo.weebly.com/uploads/1/3/1/4/131453980/sejofafuw-gewovafi-kiduvap.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465687/normal_5fac2c0927431.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/ruzumeb/wosufugosiput.pdfIn PDF document text
- https://s3.amazonaws.com/xaliwalufoguni/mixed_fraction_multiplication_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/bodajaku/fazer_backup_celular_android_para_pc.pdfIn PDF document text
- https://s3.amazonaws.com/febopa/fevajukukasi.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_off0000ad56.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAD56	5336 bytes
SHA-256: `38b5044fc0d1ada6b709cac59afd9ce05310827c69fc21796ac56be78388deaf`
`font_01_sfnt_off0000bf92.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBF92	10892 bytes
SHA-256: `08f798bdbd40920e4689b73226b63f6915d6da484fef141ad43878b05b34ad3e`

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