PDF malware analysis — malicious · 2a3dc528f2fb18a9

MALICIOUS

PDF

61.8 KB Created: 2020-11-22 13:53:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 6c33c0755e9d8a20d0fbb1800b9b93e7 SHA-1: d2b5abc861974c01f849ef3c7b985c33ecbdf8a6 SHA-256: 2a3dc528f2fb18a93f5d6eb8cd0a9e7ebc720fdb96e3e036ff1da08456d50bbf

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 0.9996

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://trafffi.ru/123?utm_term=concerning+hobbits+tab+harmonica PDF link annotation
- https://cdn-cms.f-static.net/uploads/4391602/normal_5f8e40cbb5054.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409239/normal_5fba1041df34f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368505/normal_5f9a98c3d87c0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389793/normal_5f913037b7d30.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/eb70b4f6-fdf6-4d3f-8297-8cd9d40e1ce3/jilizu.pdfIn PDF document text
- https://s3.amazonaws.com/jixerubowi/health_safety_and_welfare_policy_template.pdfIn PDF document text
- https://s3.amazonaws.com/fodose/sovevusuxufokow.pdfIn PDF document text
- https://s3.amazonaws.com/gixirojozogufux/agoura_hills_movie_theater_showtimes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b66a16c1-eba7-4811-b1fa-2d4907140eb6/80371051935.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d9914b35-4c34-4d78-a516-e4d1666c8f9b/1968_topps_baseball_card_price_guide.pdfIn PDF document text
- https://s3.amazonaws.com/tezofuretejom/75876887197.pdfIn PDF document text
- https://s3.amazonaws.com/luborinizu/dapogiwufozenowibizitedof.pdfIn PDF document text
- https://s3.amazonaws.com/baxegezivumi/angry_lion_hd_images_free.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_off0000ad1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAD1B	5224 bytes
SHA-256: `7d8b2df050f930cfbcacb90a2100adcc3eb7dda069b8c6603cdc2e51c546a22b`
`font_01_sfnt_off0000beb5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBEB5	13092 bytes
SHA-256: `24b71f554fafea7d2c3b8b0d3bb36df77e2cd6e372ce3e5032ada4728b1f6d69`

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