PDF malware analysis — malicious · 9f5e5533a9bbc1c7

MALICIOUS

PDF

62.0 KB Created: 2020-11-22 01:11:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: f2b6b71a2d53e791d1e5ce869328334c SHA-1: ea67655d78c1e14c9114fc5a0d23c16c8fe41231 SHA-256: 9f5e5533a9bbc1c7e0fc74237da95c7b3895fcd823a163e8acebba5d148f022d

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://traffine.ru/aws?utm_term=application+manager+android+apk PDF link annotation
- https://cdn-cms.f-static.net/uploads/4368964/normal_5f892b6099750.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416495/normal_5fadbc5a8fedc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459062/normal_5faddc398e762.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368242/normal_5f8949e91aed1.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/3f13ae90-8c0f-43e9-8f3d-9f0cef96be8d/gikubabekuxupegevovugo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/babc9429-38b5-4a6f-ac83-dbed8ac41911/dozovum.pdfIn PDF document text
- https://s3.amazonaws.com/liguwubore/69268669947.pdfIn PDF document text
- https://s3.amazonaws.com/luramamelolem/types_of_weathering_in_geography.pdfIn PDF document text
- https://s3.amazonaws.com/xuxifuzituwu/brittain_academy_test_section_5_answers.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4858aa65-3b2f-43ea-bfd0-b66f45eb23bb/55709017651.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/572c0aa0-41e6-4cdf-acde-e3590b72345d/92134418535.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_off0000b34d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB34D	5268 bytes
SHA-256: `0b8fe47b2bb5398b79dbf9f1e2e3eeda052d14266f2ca8b132a2136417a5976c`
`font_01_sfnt_off0000c520.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC520	11272 bytes
SHA-256: `2e6d3f377d6c310d87a72037036377da5d5436c7d16430549d05dc5655d24b72`

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