PDF malware analysis — malicious · 4f1034ac43fa9baf

MALICIOUS

PDF

70.8 KB Created: 2021-01-01 01:40:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: f818c32ed10b381deb208b8f7e2dc1b7 SHA-1: e65b7ccf3b87a0508a0faa661cbbe6c3cb2fae6f SHA-256: 4f1034ac43fa9baf69603e64875fcdee06525384f3dc93dc342098a048d3cb53

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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/123?utm_term=oreo+cupcake+recipe+pinterest PDF link annotation
- https://cdn-cms.f-static.net/uploads/4376088/normal_5fa5dcec36087.pdfIn PDF document text
- https://nuvisinuxaxo.weebly.com/uploads/1/3/1/3/131383681/duxawuvadezudu.pdfIn PDF document text
- https://cdn.sqhk.co/resasenubori/P1ctjeo/world_war_z_season_2_roadmap.pdfIn PDF document text
- https://fudegenajeno.weebly.com/uploads/1/3/4/5/134581691/fexivabotebobodafa.pdfIn PDF document text
- https://cdn.sqhk.co/pemejurove/hjbvzQ4/download_english_love_songs_ringtones.pdfIn PDF document text
- https://wilixutisew.weebly.com/uploads/1/3/4/0/134095986/wuxaba.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/97716f13-db36-4c48-b102-c401828a85c0/descargar_50_sombras_de_grey_castell.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/05240507-8485-4a0a-a0d2-84a1d41181c3/fuwedojukixad.pdfIn PDF document text
- https://s3.amazonaws.com/wovigebi/adjetivos_posesivos_en_espanol.pdfIn PDF document text
- https://s3.amazonaws.com/negonanopix/idsa_asymptomatic_bacteriuria_guidelines.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/529459e0-8822-486e-957c-46e8548914e4/wow_mrrl_guide_deutsch.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_off0000d646.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD646	4988 bytes
SHA-256: `a563b3e6e53fbd47b926e46773fbb9c1dae79cee92d16bdc645715e9b6903ac7`
`font_01_sfnt_off0000e74c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE74C	11500 bytes
SHA-256: `d381ddd95ed28cbe9f1653dc41f1fce77bf9552c147c353e2c174c636eabfbc1`

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