PDF malware analysis — malicious · 540192031d038708

MALICIOUS

PDF

67.4 KB Created: 2020-11-30 13:57:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26

MD5: f80deb66f61f80b744060aabe191648c SHA-1: 16ca0e72a2da3ed61cc494607ea3ff38007f1b20 SHA-256: 540192031d0387082d57fd32c9cafb231b6b2909f3b4ac5911985da6a356c5d5

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a URL that appears to be part of a phishing or malware distribution campaign, disguised with a Minecraft-related term. ClamAV and an ML classifier flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://trafficel.ru/strik?utm_term=minecraft+jeb_+name+tag PDF link annotation
- https://cdn-cms.f-static.net/uploads/4384160/normal_5fc090ff4f55a.pdfIn PDF document text
- https://rigivopamakor.weebly.com/uploads/1/3/4/8/134869382/4880578.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383138/normal_5f9db61763da7.pdfIn PDF document text
- https://nopifabuda.weebly.com/uploads/1/3/4/6/134693299/lunudumu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static1.squarespace.com/static/5fc0eac55bcb0228a2828fa5/t/5fc349b64f98375720497caa/1606633913070/how_to_make_red_eye_gravy_with_coffee.pdfIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd01783ca23154c95c16a5/1606222202091/nezagusevediwusimene.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0d00e405d5340f3291e5b/t/5fc0e6c218e72e5fdbf86ce3/1606477507954/52991229548.pdfIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf19aef3361272aeaeefa/1606218138641/85224034964.pdfIn PDF document text
- https://s3.amazonaws.com/pexodugosa/koselurufu.pdfIn PDF document text
- https://s3.amazonaws.com/sizabo/internet_manager_bagas31_2019.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_off0000ca79.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA79	5240 bytes
SHA-256: `bb23d939593c855262a668461f1ef5e4ac5545aeb01794fdd33537e9063c15ab`
`font_01_sfnt_off0000dc5f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDC5F	10868 bytes
SHA-256: `4171fd4144fa66dae07b9ee614c9876a1ac209e2c426b1c4265ea9e7951272ae`

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