PDF malware analysis — malicious · a4fbfc1d9c917e31

MALICIOUS

PDF

66.5 KB Created: 2020-11-21 17:41:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23

MD5: 5c311f02988f525dd39ce8d74b977cb2 SHA-1: e30bfdf61fc4cbe1717a6553961b5b63f1d89599 SHA-256: a4fbfc1d9c917e3106aec8417531cb095a70b98163e079e4cb15f522c13ff684

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF containing an embedded URL that points to a suspicious domain, flagged by heuristics as a potential phishing or malware distribution vector. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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://traffset.ru/123?utm_term=eje+cafetero+colombia+hotels PDF link annotation
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/wanasuvedigo/28873290737.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/74885cf4-5c40-407f-9486-d04f578009bc/rezewubabirekumoropeso.pdfIn PDF document text
- https://s3.amazonaws.com/bajuse/74228037770.pdfIn PDF document text
- https://s3.amazonaws.com/lorifumofelu/definition_of_intermembrane_space.pdfIn PDF document text
- https://s3.amazonaws.com/gujutavevive/pibag.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7c48ddb6-27d8-46f8-9e8c-dd2c67e2e25b/rufukapamuwedarog.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5f33538c-48d9-4604-9144-470c72c433de/12281026299.pdfIn PDF document text
- https://s3.amazonaws.com/dumupa/mens_anorak_pattern.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/86b22161-bb73-41be-ba73-c7cff2bf0496/39755114776.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bd30d8bc-a879-41b9-9e8e-f1cfe9f1823b/besaxifewugiru.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_off0000c402.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC402	5296 bytes
SHA-256: `59facb5460e8f30f37114c476b7bda5b8728cdeba24f82e63f9083cc73459ab2`
`font_01_sfnt_off0000d5e1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD5E1	11788 bytes
SHA-256: `6d9cdaca1ee444401b14ca142f408cae33589032e20d127de134dcd9e4d22386`

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