PDF malware analysis — malicious · a691009d64bc2ef7

MALICIOUS

PDF

60.5 KB Created: 2021-01-25 11:59:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 16493ec9eae1c07363a9c27fe9ad4f6f SHA-1: 9fdc8ea7760003d2830f705e8163d63d9e7d437a SHA-256: a691009d64bc2ef7d3adacde3cbf36f3d4c234e8348b428848914c8f51c87de9

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by a ML classifier and ClamAV, and contains an embedded URI pointing to a suspicious domain. The document body, though heavily obfuscated, suggests a lure related to a 'mental health examination template'. The presence of multiple embedded URLs indicates a phishing or redirection attempt to deliver a malicious payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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://traffset.ru/123?utm_term=mental+health+examination+template PDF link annotation
- http://santand-es.com/56598212002915zu.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379374/normal_6003da261fb6d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369927/normal_5ff9fc1788997.pdfIn PDF document text
- http://zuvewedapajazo.iblogger.org/malta_international_airport_weather_report.pdfIn PDF document text
- http://datujizid.iblogger.org/benjamin_graham_the_intelligent_investor_indonesia.pdfIn PDF document text
- http://swiss-gear.shop/82849340968qbt.pdfIn PDF document text
- https://cdn.sqhk.co/vibesadebo/iAohbje/buropujemitovatexi.pdfIn PDF document text
- https://cdn.sqhk.co/rotuzuwibi/wsL26ja/zombs_royale_io_online_spielen.pdfIn PDF document text
- http://hesap-al-sat.com/navamobimanaxubot51gx.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4499629/normal_5fc72a1beeac4.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4476285/normal_5fc7341b31e7e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://dilowopuvuzi.rf.gd/89037223347.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_off0000b2e4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB2E4	4860 bytes
SHA-256: `6526e8b80a8af810f358b87e06042b7bd6e25109be0f53c89bfc21d9e4dfd03a`
`font_01_sfnt_off0000c356.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC356	10016 bytes
SHA-256: `8cca318ebc23c451005b5bf46c6e2a128e9934e312345e0291705e997076923f`

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