PDF malware analysis — malicious · 96042683009e2e9d

MALICIOUS

PDF

67.0 KB Created: 2021-01-10 11:44:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: f98da1af6b8c240177376f612d38951a SHA-1: c100e6d15fed46429bf40114b0e1306e6b94dee2 SHA-256: 96042683009e2e9de0fcf8f7f1c837d5be8a3702cf1cbcfae9137cbc213d8c6d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to 'trafffe.ru', which is highly suspicious and likely leads to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text related to 'prokaryotic cell division', suggesting a lure to disguise the malicious nature of the PDF.

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://trafffe.ru/123?utm_term=prokaryotic+cell+division+ppt PDF link annotation
- https://site-1172046.mozfiles.com/files/1172046/bonumijo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385631/normal_5fb27a6039816.pdfIn PDF document text
- https://cdn.sqhk.co/wevexifimur/heFhicx/17099195262.pdfIn PDF document text
- https://site-1171564.mozfiles.com/files/1171564/free_mobile_app_builder_site.pdfIn PDF document text
- https://site-1240204.mozfiles.com/files/1240204/any_video_player_app_for_mac.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367919/normal_5f9189cc18f6e.pdfIn PDF document text
- https://cdn.sqhk.co/gasubapo/gfijigy/47816669241.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/vabemavuputenif/ase_valve_regurgitation_guidelines.pdfIn PDF document text
- https://s3.amazonaws.com/lerezazo/pemotegoxopagi.pdfIn PDF document text
- https://s3.amazonaws.com/bufexa/marine_net_corporals_course_test_answers.pdfIn PDF document text
- https://s3.amazonaws.com/paropabaru/franchise_business_in_india.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_off0000ca7b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA7B	5296 bytes
SHA-256: `2a65cd5f9254161f828a5c38073c3c079469ff68776c5d87dae99028dc8f73dc`
`font_01_sfnt_off0000dc9b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC9B	10076 bytes
SHA-256: `57df6ed0305c98d98269b48a18457cbde4d0cf51b6eeca95aea4dc6746087df1`

Open this report in the interactive analyzer, or submit your own file for analysis.