PDF malware analysis — malicious · 73ae545804ee9fa2

MALICIOUS

PDF

66.5 KB Created: 2020-11-14 17:40:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07

MD5: cd62ec65263d6d9a1e882d1d7fa1fd81 SHA-1: 228ba0118cb9f32520271f05936611e8569ca44b SHA-256: 73ae545804ee9fa28597dedcffb7c6bcf8f22825fc84a3b107ad7efbc7772797

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely to deliver a malicious payload or phish for information. The document body, though heavily obfuscated, appears to be related to a 'pharmacology recall audio download' lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://trafffe.ru/strik?utm_term=pharmacology+recall+audio+download PDF link annotation
- https://cdn-cms.f-static.net/uploads/4405644/normal_5fa6601a2fc19.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470975/normal_5fad408d6d0b1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403274/normal_5f930785bfda2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414849/normal_5fafe71e803cd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420240/normal_5fad567d6872d.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/dddd685b-18dd-4070-bffe-fd4698ca4b25/53765072616.pdfIn PDF document text
- https://s3.amazonaws.com/nevowimo/41943425536.pdfIn PDF document text
- https://s3.amazonaws.com/varolexexus/53006725114.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3945cf93-fc85-45a0-91fc-bf72895232a9/96472828132.pdfIn PDF document text
- https://s3.amazonaws.com/gotenukevepunin/why_is_romeo_and_juliet_a_coming_of_age_story.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/58eb80ed-a84b-468f-b523-3eb3b8f24868/27655849317.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_off0000c75e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC75E	5372 bytes
SHA-256: `28dc8c82834495951799c81091c45f773aa5f8d62c1b060b390bcca39713069b`
`font_01_sfnt_off0000d984.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD984	10572 bytes
SHA-256: `14732f610fd024e252d6a7a6a7e4b0949d580376a58de2379c0c9f1748cf8ea9`

Open this report in the interactive analyzer, or submit your own file for analysis.