PDF malware analysis — malicious · ba53a411494256dc

MALICIOUS

PDF

68.7 KB Created: 2021-01-16 13:55:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 3b236ff8698428136db266f247bc519a SHA-1: 987415b0491a5aab848b33c3ebebf34b2e1f98a2 SHA-256: ba53a411494256dce3fe247fb655f70ffb6c1ffb6f75875d0b37ec492bf022f9

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 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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=google+music+lab+piano+roll PDF link annotation
- https://cdn.sqhk.co/gabazumad/ChtihSF/friend_finder_reviews.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4420250/normal_5ffa933636649.pdfIn PDF document text
- https://cdn.sqhk.co/letinumi/7jfCtid/screen_translator_paid_apk.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4384142/normal_5fcb8ee48eefe.pdfIn PDF document text
- https://cdn.sqhk.co/pevedapev/ZY7OkwH/zuniriradasuvak.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393363/normal_5f934f56e2291.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386086/normal_5fd6e623b7d70.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4475196/normal_5fd96e330af83.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489402/normal_5fae426b2ccde.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376374/normal_5f8b4d4ec47a5.pdfIn PDF document text
- https://site-1178961.mozfiles.com/files/1178961/addition_facts_worksheets_1st_grade.pdfIn PDF document text
- https://cdn.sqhk.co/kewixoretuze/cEhiNHv/jepexodefog.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/jarirotexab/rrbald._gov._in_alp_answer_key.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_off0000d0a2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD0A2	5424 bytes
SHA-256: `ae18d4ff2e37b28659c24f876dffb15db804413bc33e03c6bb797c1f91138efd`
`font_01_sfnt_off0000e304.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE304	10372 bytes
SHA-256: `f75f35d77bd7ce10811669655319f720587eb517ea7acf52fab2cac1bcd6bc55`

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