PDF malware analysis — malicious · cb47639cd1a99ead

MALICIOUS

PDF

71.9 KB Created: 2021-01-30 07:02:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23

MD5: b5ba29a1672467ef0dffbb0a50b1675e SHA-1: fc2733a614a9c846a0f10ee94aa26229b85c920e SHA-256: cb47639cd1a99ead07cff51bd2db5404768800ffed5c585f3ad4932a38470567

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL disguised as a job search result. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect the user to 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://traffnew.ru/wb?keyword=project%20administrator%20jobs%20chicago PDF link annotation
- https://cdn.sqhk.co/rapowipijes/xZjgtp9/25514721218.pdfIn PDF document text
- https://cdn.sqhk.co/letaziseb/ZaKATjb/loopback_ip_address.pdfIn PDF document text
- https://cdn.sqhk.co/ripalufix/gexD3V0/11838756882.pdfIn PDF document text
- https://cdn.sqhk.co/kuxefoxo/jcyzgcU/gravity_bounce_shoes.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453551/normal_5fd1a6aa665de.pdfIn PDF document text
- https://cdn.sqhk.co/gupuwiwi/QigQnYo/nail_it_salon_near_me.pdfIn PDF document text
- https://cdn.sqhk.co/mepowokugo/hhgjwqP/splendor_board_game.pdfIn PDF document text
- https://cdn.sqhk.co/rowubuvuke/ifhcJgg/vemakoviz.pdfIn PDF document text
- https://cdn.sqhk.co/wekonexiw/fbjdPgS/wuxelekiwenupiz.pdfIn PDF document text
- https://cdn.sqhk.co/mokabawimav/cfhaQha/adderall_xr_effects_on_heart.pdfIn PDF document text
- http://osummer.space/17302154953dq05n.pdfIn PDF document text
- https://cdn.sqhk.co/tinolefowi/l5Djjgj/79111176383.pdfIn PDF document text
- https://cdn.sqhk.co/gobisofokox/gelEQhj/rixojibif.pdfIn PDF document text
- https://cdn.sqhk.co/parabeset/jejhjfM/zemisa.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d88b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD88B	5540 bytes
SHA-256: `620b63a23da92c0213e45730dbd39a979dd6a602557d9d90379a6dea4d31a823`
`font_01_sfnt_off0000eb38.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB38	11836 bytes
SHA-256: `9d1b96a1933a14222cd6c47806c7f4fad8ca2ad44d9399e488ef9d69b948fa85`

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