PDF malware analysis — malicious · b5d040aed6b3adf6

MALICIOUS

PDF

74.8 KB Created: 2021-02-28 18:29:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17

MD5: dbf3d486c0924a2774697b9a67dd9057 SHA-1: 24f3fe2f0814727b02767eae00a9e0b948627e69 SHA-256: b5d040aed6b3adf66d01250572b16a8c06182e91003e6bc0d2b044d441adcdc9

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 an embedded URL pointing to 'soxebez.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with techniques used to deliver malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://soxebez.ru/award?keyword=ping+pong+classes+nyc PDF link annotation
- https://cdn.sqhk.co/nokulebepoba/iAggiab/anime_aesthetic_wallpaper_hd_4k.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4391008/normal_5ff5e3fb1cac0.pdfIn PDF document text
- https://cdn.sqhk.co/wepurodapike/dAif6hg/zorekelawajevogodizafepek.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4407733/normal_5fffe3a29ec33.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4375696/normal_600534aa2aba1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459188/normal_5fdd4af9236c3.pdfIn PDF document text
- https://cdn.sqhk.co/budajawisore/aDjh8hf/quran_in_english_translation.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/pisedij/humphrey_visual_field_manual.pdfIn PDF document text
- http://retesatitogeli.epizy.com/jivon.pdfIn PDF document text
- http://wiwafejopof.epizy.com/buzekojawolomisevotata.pdfIn PDF document text
- http://vonizevugopu.rf.gd/ccpc_act_zambia.pdfIn PDF document text
- http://fajazimigig.atwebpages.com/nijok.pdfIn PDF document text
- http://weketabafizevu.epizy.com/76136507748.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_off0000e78a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE78A	5108 bytes
SHA-256: `509067206e650b8b700012fbbb31781ff33b96dce74ded454d914a13d373fde8`
`font_01_sfnt_off0000f910.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF910	10988 bytes
SHA-256: `9bc1fcfc352bd33829c73fa809441917d336b93722185aa85f67ba939fc45707`

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