PDF malware analysis — malicious · 1e3cefa04f25b2ce

MALICIOUS

PDF

70.0 KB Created: 2020-12-28 05:43:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: c6c095f39841dcf0e3d581cac443f27f SHA-1: 96c89d008f71fb387be2649fcb989687357c78a9 SHA-256: 1e3cefa04f25b2ceccdda2ca71be55d3e8adebc6b172a09134e811c1f9a4543b

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The document body, though heavily obfuscated, appears to be related to 'ultronic weather station clock instructions', serving as a lure.

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://traffnew.ru/123?utm_term=ultronic+weather+station+clock+instructions PDF link annotation
- https://cdn-cms.f-static.net/uploads/4451231/normal_5f9f0f2579055.pdfIn PDF document text
- https://cdn.sqhk.co/jevipugirofi/iRhijaN/kazore.pdfIn PDF document text
- https://cdn.sqhk.co/lewivapawo/eG3wNij/tidupitowodu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449192/normal_5fa00996b280e.pdfIn PDF document text
- https://cdn.sqhk.co/zexukobesu/YIihwyx/dragon_warrior_3.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/a7f04125-8152-4548-9620-ab516f425c81/lenawejigub.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/abd9728a-3567-4023-9a1f-24f5fffcdb1f/bolixodetasosebavimax.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a7e0f1ee-ccbd-4926-8d4a-042afaef557e/80720098752.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1c92b8c8-45a6-4405-a59b-053829fefa34/chefsteps_sous_vide_temperature_chart.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/718d893e-e85a-495f-8379-05de258a6e58/84015009925.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ecf25238-cab9-44e7-927c-a6a825ae0b57/tketici_rant_sorular.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_off0000d308.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD308	5036 bytes
SHA-256: `a1c1d38131b5b23bceab8a70a87ce2d3382a212a2362ccbf0a151bd070e9111b`
`font_01_sfnt_off0000e436.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE436	11384 bytes
SHA-256: `66a91e0e2f1baecd75f8dc96ede023e6bf4097e07d64066544874d6723791129`

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