PDF malware analysis — malicious · 234ba0329e452099

MALICIOUS

PDF

281.6 KB Created: 2020-12-17 16:08:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31

MD5: a61ea271af8206a7437bde95763d5f9b SHA-1: 168a5557581ae8ef68bbeb70a958c9b14b7780dc SHA-256: 234ba0329e452099a1c4fcea6e926331df595beec8ac0c9401c37515613c5341

104 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing lure. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The heuristic 'SE_INVOICE_LURE' further supports the phishing pretext.

Machine Learning

Nyx PDF Classifier malicious score 0.9937

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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://traffnew.ru/123?utm_term=the+trials+of+apollo+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4427809/normal_5fcacd6d81dee.pdfIn PDF document text
- https://xubuvene.weebly.com/uploads/1/3/1/3/131380433/e177db37.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4474446/normal_5fc76ffd3660c.pdfIn PDF document text
- https://fitokuzigijot.weebly.com/uploads/1/3/4/6/134681543/2a4109d6ac373e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369653/normal_5fca7536892a9.pdfIn PDF document text
- https://xitonodulamet.weebly.com/uploads/1/3/4/3/134307836/tamatavezadufax-bokisunebaroj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389106/normal_5f9d775b9b58f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379034/normal_5f8a4c089d065.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/baxunaf/input_output_tables_worksheet_4th_grade.pdfIn PDF document text
- https://s3.amazonaws.com/baxunaf/lejun.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_off00041ebf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x41EBF	5080 bytes
SHA-256: `e2365f15b9cd239aeb15365dc60dcef4da8a6a3c030309ad788df41ed3919f13`
`font_01_sfnt_off00042fff.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x42FFF	12724 bytes
SHA-256: `da61b7235951856ff73af09cefff0f0471453be4b32c7da329ff33a8bbd2b341`

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