PDF malware analysis — malicious · 080e846d2a3aaa0b

MALICIOUS

PDF

74.5 KB Created: 2021-02-17 12:39:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26

MD5: efcd018366f479e25f9a6b3c2f5f3870 SHA-1: f2bc34b0f4e166bf38d6d2de5cea505fb4b562e2 SHA-256: 080e846d2a3aaa0b616fc4193eb1ec6206e04543298fde385e4bbe03983aa649

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. An external URI was found embedded within the PDF, pointing to a suspicious domain. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a phishing or malware distribution site.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/strik?utm_term=straight+talk+zte+288c+lte+mobile+hotspot+hotspot PDF link annotation
- https://cdn.sqhk.co/jefapukawore/hfhagj8/last_battleground_survival_apk_data.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405953/normal_5fe824cce9bad.pdfIn PDF document text
- http://vofuvomo.iblogger.org/pvc_glue_sds_sheets.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4443357/normal_60210389c6dd7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418567/normal_60105af7edb0c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4458839/normal_600dfcab00c60.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422148/normal_60238f49513db.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4458856/normal_601683c74c1d5.pdfIn PDF document text
- http://gosojojokin.22web.org/18_dna_structure_and_replication_pogil_answer_key.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://zefuziboveteg.epizy.com/a_pro_forma_financial_statement.pdfIn PDF document text
- https://s3.amazonaws.com/wekibik/llp_audit_report_format_icai.pdfIn PDF document text
- http://defipezisezujor.rf.gd/57468075567.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_off0000e51a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE51A	6032 bytes
SHA-256: `c536d3d5fcd3bf3ef56b36465813afe30b8002ee2d989e49254bf561cef39944`
`font_01_sfnt_off0000f977.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF977	10504 bytes
SHA-256: `9be0455ae2ce6d83ae285fb158145ea2fbfacfa02dd3a0b6dbe78ada957d2189`

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