PDF malware analysis — malicious · fb8d9bd6110e23a5

MALICIOUS

PDF

71.6 KB Created: 2021-02-23 01:49:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16

MD5: 116d1e12b12027017290324e1292161d SHA-1: 83326f178e2e6c6c29cc9fa9bd832f7db0c4f41c SHA-256: fb8d9bd6110e23a5517b097eac19467fffad80872823985c3d780e48c1cb7463

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF that contains multiple embedded URLs, one of which is flagged as malicious. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs suggests the document is designed to redirect users to potentially harmful websites, likely for phishing or to download further malicious content.

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://jottigo.ru/strik?utm_term=modern+political+thought+book+pdf PDF link annotation
- http://karnaval.host/traduire_fichier_anglais_en_francais_en_ligne_gratuit7anff.pdfIn PDF document text
- https://cdn.sqhk.co/megopofe/WiiiiL2/724627826.pdfIn PDF document text
- https://cdn.sqhk.co/zimuteraf/pagft2e/xuxef.pdfIn PDF document text
- https://cdn.sqhk.co/gitovera/jjdNFZP/tanktastic_3d_tanks_mod_unlimited.pdfIn PDF document text
- https://cdn.sqhk.co/pafevola/dubx0KR/free_easy_printable_crossword_puzzles_with_solutions.pdfIn PDF document text
- https://cdn.sqhk.co/rorajakura/fhfgchj/vikings_spin_off_valhalla_cast.pdfIn PDF document text
- http://neuroncraft.online/standard_of_excellence_book_1_flute_free4dzz5.pdfIn PDF document text
- https://cdn.sqhk.co/dosiloxof/iJggicL/basketball_shot_return.pdfIn PDF document text
- http://digitalmedialit.com/android_app_player_for_pc_windows_10pue58.pdfIn PDF document text
- https://cdn.sqhk.co/jokalirubore/p4hjPha/vifobikapotevijuril.pdfIn PDF document text
- https://cdn.sqhk.co/nuzinirumawe/jixichb/fatinumewop.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/regegozumekoza/dujidatomomezurex.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_off0000d9e8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD9E8	5448 bytes
SHA-256: `ba5e5d03f64b3811a00fd2c2654c70a3c887557a60e17f84ce3b1ddfb4768ceb`
`font_01_sfnt_off0000ec78.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEC78	10824 bytes
SHA-256: `c9f7b0d7f35f41c86668d8d1045a9286edd35fc91a1fbafac4edc2c68389688f`

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