PDF malware analysis — malicious · b563aa85a604ceab

MALICIOUS

PDF

62.1 KB Created: 2020-12-28 14:42:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 503a7b74c6d94523e86a0e09e70e33c9 SHA-1: b5377a048f8e014737b159ce83841bb761185db7 SHA-256: b563aa85a604ceabfd00ec062324c22ebd503f4f8a9bfdba2fda4c49c46b4e76

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF containing a lure related to a live stream, directing the user to a suspicious URL. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. The presence of embedded URLs and the nature of the content strongly suggest a phishing attempt to redirect users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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://traffset.ru/123?utm_term=98.9+the+river+listen+live PDF link annotation
- https://bonolofoguworow.weebly.com/uploads/1/3/4/6/134694868/tubemofikafokem-vopudafilawigex-boxovig.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4422906/normal_5fc51d9571045.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369923/normal_5f995cc817212.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4418781/normal_5fe5d7bc1afc1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404969/normal_5fc0503236de7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368222/normal_5fbdda0e21dba.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4501233/normal_5fe3ea8adb460.pdfIn PDF document text
- https://cdn.sqhk.co/dakuwuwuzije/4eiidii/driving_school_classic_apk_uptodown.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/liguwubore/lm358_datasheet_smd.pdfIn PDF document text
- https://s3.amazonaws.com/bulozor/arquetipos_de_marca.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f6b147dc-468f-447f-80e6-48b14a467b00/79242663022.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_off0000ba33.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBA33	4908 bytes
SHA-256: `c6ee85afc873f01d3e68de85bcf84fcb60851e93906be11e2ed93207142c6f39`
`font_01_sfnt_off0000cae8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCAE8	9748 bytes
SHA-256: `afe3670b18f768676af696203c5c3dc47e78547e648e27e1802c6db6a39c1830`

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