PDF malware analysis — malicious · bdff5b58478adee1

MALICIOUS

PDF

82.8 KB Created: 2020-11-14 04:06:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 20b0ef4b51c0af529028d878b05744ef SHA-1: 91334572b336ce3d5d89e2873baf4b22cb7695c2 SHA-256: bdff5b58478adee100b566cf2930dc556bb685f75a2799c5e4074ffc75f72d4a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://trafffi.ru/aws?utm_term=biological+conservation+journal+guidelines PDF link annotation
- https://cdn-cms.f-static.net/uploads/4393345/normal_5fa59df0d98a6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384145/normal_5f8e01d7e8d9d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384480/normal_5f8d9ded7b4f1.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/joterige/infinity_gauntlet_mod_1.7.10.pdfIn PDF document text
- https://s3.amazonaws.com/daselex/95953580055.pdfIn PDF document text
- https://s3.amazonaws.com/dalava/duke_economics_major.pdfIn PDF document text
- https://s3.amazonaws.com/golepe/3729243106.pdfIn PDF document text
- https://s3.amazonaws.com/zuwimadaneb/vepisena.pdfIn PDF document text
- https://s3.amazonaws.com/webipejonavuv/extraordinary_acupuncture_points_chart.pdfIn PDF document text
- https://s3.amazonaws.com/zonivezada/download_kmspico_office_2016_bagas31.pdfIn PDF document text
- https://s3.amazonaws.com/garorowa/circle_equation_exercises.pdfIn PDF document text
- https://s3.amazonaws.com/geradi/45848565212.pdfIn PDF document text
- https://s3.amazonaws.com/webipejonavuv/kickit_line_dance_step_sheets_free.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_off00010440.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10440	5292 bytes
SHA-256: `19ba1ff8ebd1f20ca9e36f5812faeb1a20565b2b936a9f6fbfabcdfb8c8847fb`
`font_01_sfnt_off0001165c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1165C	11664 bytes
SHA-256: `ebe77124a8f36d71b469f4cca8f92f94f5c3959f55514b2cd001675fcdddf056`

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