PDF malware analysis — malicious · 78e0f7ba1b25d0a3

MALICIOUS

PDF

69.5 KB Created: 2020-11-29 01:59:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 24095ced49f31be20127aeeed942f71d SHA-1: 62bae191463d2681678cebda05f965875f6e07ae SHA-256: 78e0f7ba1b25d0a31893351abdd9ee4437e86fe13068a9a9c50513c0c0dba2b6

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 pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The PDF structure and embedded URL suggest an attempt to trick the user into visiting a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=chord+of+shards PDF link annotation
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/gowebabuxogiro/53880247413.pdfIn PDF document text
- https://s3.amazonaws.com/tofizo/principles_of_statistics.pdfIn PDF document text
- https://s3.amazonaws.com/wavunot/xabizobokurakel.pdfIn PDF document text
- https://s3.amazonaws.com/nakevoja/68w_training_manual.pdfIn PDF document text
- https://s3.amazonaws.com/somisilegex/45028507460.pdfIn PDF document text
- https://s3.amazonaws.com/wiwuxot/soxowaxosazokek.pdfIn PDF document text
- https://s3.amazonaws.com/gavobawum/razugedefanafasaka.pdfIn PDF document text
- https://s3.amazonaws.com/votuweroxigezog/98512935681.pdfIn PDF document text
- https://s3.amazonaws.com/gelawiweza/google_play_services_apk_download_for_fire.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fbb7099d-9cd6-48e2-aa99-c7c75c0f6221/40555288137.pdfIn PDF document text
- https://s3.amazonaws.com/fibesezati/stopniowanie_przymiotnikw_angielski_dla_dzieci.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c717.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC717	4424 bytes
SHA-256: `1b4b535bd9eb1761482f5806a9e5db212827c0752c8dcfa591562e091107a3ed`
`font_01_sfnt_off0000d61f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD61F	10968 bytes
SHA-256: `85f4cac4bdd4313b8b853740497a13c31f8172cb8ed800cc105a33584d033716`
`font_02_sfnt_off0000fb48.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB48	4324 bytes
SHA-256: `ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230`

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