PDF malware analysis — malicious · e79f3d80b1497fb6

MALICIOUS

PDF

69.6 KB Created: 2021-01-17 03:55:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 07dbc7568183c0fe3b09e8a9c91bc89d SHA-1: 3a52184bcf8fda44316ceb38223449a8887d2347 SHA-256: e79f3d80b1497fb67737cbb9462c08d96908752fd2c775fe9ef2c47773d9ffb5

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 URI pointing to 'https://traffking.ru/123?utm_term=the+bet+short+story+questions+and+answers', which is likely a phishing lure. The document body, though heavily obfuscated, suggests a context related to 'the bet short story questions and answers', likely to trick the user into visiting the malicious URL.

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://traffking.ru/123?utm_term=the+bet+short+story+questions+and+answers PDF link annotation
- https://site-1172568.mozfiles.com/files/1172568/begod.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4497666/normal_5fadc06f4c753.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380213/normal_5f90494a99059.pdfIn PDF document text
- https://cdn.sqhk.co/kotoweraga/5jciiRK/pencil_christmas_tree_with_lights_canada.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421637/normal_5f9d2f0a05489.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4371806/normal_5fa0d58d2d107.pdfIn PDF document text
- https://site-1176609.mozfiles.com/files/1176609/24425543465.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451348/normal_5ffcc65c8f228.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/jivamubug/86198798918.pdfIn PDF document text
- https://s3.amazonaws.com/gujutavevive/bls_provider_manual_ebook.pdfIn PDF document text
- https://s3.amazonaws.com/xuzed/65228466262.pdfIn PDF document text
- https://s3.amazonaws.com/zuses/digraph_th_activities_for_first_grade.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_off0000d444.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD444	5288 bytes
SHA-256: `824f4af148594e1867656f639f29bcc9c5737f40fd182b92f9e39701b92d2a96`
`font_01_sfnt_off0000e644.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE644	10324 bytes
SHA-256: `dcd428bff6491b9cf6dbe9cc08e23e343de63b303ed112bf9886b6c60231965b`

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