PDF malware analysis — malicious · 099d1705a06d6681

MALICIOUS

PDF

65.3 KB Created: 2020-11-18 19:29:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: bdfb81f645b1460fb35011f11d386d4b SHA-1: 1a30cf42a00236cd069cbd760745853d905d264d SHA-256: 099d1705a06d66816bd400d14c30c1076fc6acfb63a181342fbbe38b3c5e1a0d

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 0.9998

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://trafffe.ru/123?utm_term=a+primer+of+ecological+statistics+gotelli+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4373505/normal_5f8904ed37437.pdfIn PDF document text
- https://gagegopered.weebly.com/uploads/1/3/4/8/134880179/e9a712.pdfIn PDF document text
- https://sibikobibe.weebly.com/uploads/1/3/4/0/134040949/xolire.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369524/normal_5fa7446568fd4.pdfIn PDF document text
- https://gamidilagadam.weebly.com/uploads/1/3/4/3/134339960/f4f47feb1.pdfIn PDF document text
- https://sodejokare.weebly.com/uploads/1/3/4/3/134349501/3220938.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/lupuvogotog/english_curriculum_guide_k12_tle.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bdac8e58-c6de-4d15-8528-ccbed2b45b55/buzalipokabilelu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ad435d52-6be8-4f98-8aa5-0e474af2af0b/ronny_j_midi_kit.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/61e0bf44-20a3-40c3-81d1-c0e4c88861bb/91104203498.pdfIn PDF document text
- https://s3.amazonaws.com/vexeliku/color_by_number_christmas_worksheets_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/37b5262b-1e37-4ece-926b-2c698ef33ebf/protocolo_http.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_off0000c3bb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC3BB	5464 bytes
SHA-256: `f60961ba587e3bb6e768fed336ba5deab7f327f6ed9535466b769e37fdf72437`
`font_01_sfnt_off0000d639.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD639	10128 bytes
SHA-256: `c4765036cfd33f0963269577c976e556f7dca1a1e92226b8d571173a3d8f35ab`

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