PDF malware analysis — malicious · 1fc59e360caffc39

MALICIOUS

PDF

77.8 KB Created: 2021-01-06 12:14:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 7285317978fccba9d4e64c1b4ebefd7e SHA-1: 999ec7a29d6190f278e588b1b130ecceadd0d3ad SHA-256: 1fc59e360caffc39e45f6329003fe53a6da2690077a8667dd341736cbbba545d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that, when clicked, likely leads to a malicious site. The document body, though heavily obfuscated, contains text related to 'free English classes' and application metadata, suggesting a social engineering lure.

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://trafficel.ru/aws?utm_term=aulas+de+ingles+gratis PDF link annotation
- https://cdn-cms.f-static.net/uploads/4454430/normal_5fbf18023b3bb.pdfIn PDF document text
- https://cdn.sqhk.co/litonesi/YhijeaD/nekotifuxiragapi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4425924/normal_5fb00a8ace983.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4382953/normal_5faea7c84d39d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408335/normal_5fc1127db0911.pdfIn PDF document text
- https://cdn.sqhk.co/regavebike/gjwifsX/go_climb_a_rock_star_trek.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488102/normal_5fbab392ae885.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379722/normal_5f8c04f7ea392.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4469365/normal_5ff1244a32f0a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369498/normal_5f9b1f089a9bd.pdfIn PDF document text
- https://cdn.sqhk.co/sidogorego/ay6jdjb/96795555699.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/f680179b-d1af-4e15-91d4-cdf4f805b188/xolanulebitemi.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_off0000f130.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF130	4984 bytes
SHA-256: `d614affeeb2ab8699bf7f1a0cad9ec72bb817d9d1a185f6d0a9036f92ee5b817`
`font_01_sfnt_off0001022c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1022C	12152 bytes
SHA-256: `85bfaa9632c9e32f87089c936ba54a69b056e06b18d702fe6f02303d903efa5c`

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