PDF malware analysis — malicious · a7c01a7c5456f575

MALICIOUS

PDF

76.2 KB Created: 2020-11-11 12:16:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 758f0488a70d573bd13f3f31b2fe0f8e SHA-1: 272d6f20c3aa499f15adf920cee1a5f8513fcbe8 SHA-256: a7c01a7c5456f5750116864e1fdc4f2d75c4eacfc9ec00cba37578da4cea7123

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://trafficel.ru/123?keyword=pain+level+chart+0-50 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4367275/normal_5f8d4d5ca27f7.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4376869/normal_5f8ad0ece20ff.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4455195/normal_5fa08cf1941ff.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404520/normal_5f93463a78e7d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4414866/normal_5fa2d57f6816d.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/gupuso/8674900990.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/94a79293-c3d4-4d47-a1b8-f8a2c0270c18/xaguperodupapusaz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bade5b5c-8329-4f79-bf28-6039baaea478/73249771792.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/02675edd-9566-42f8-9060-20052eb4f97b/58630758616.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a5223279-a418-48fb-b70f-295d0253795e/breeding_calculator_monster_legends.pdfIn PDF document text
- https://s3.amazonaws.com/kimoweworape/zisikevefewisijos.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bb0da970-6ae3-4d82-84d2-3bc8a1f8d529/alamo_colleges_pay_scale_2017.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_off0000ee93.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEE93	5068 bytes
SHA-256: `1b02c97be5dfeb9e90c51f6e8fad96ec7d3874eb727ec075bd71bc2754e2dec1`
`font_01_sfnt_off0000ffdb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFFDB	10624 bytes
SHA-256: `b564d0fe5aaf491c79f02e269ec5526f5fa01e4673e18e6de8438b2a58810e9f`

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