PDF malware analysis — malicious · c300c0380bcb8caa

MALICIOUS

PDF

65.6 KB Created: 2020-11-18 01:29:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 8654a19bc2218bb27039fa93b0fc5d72 SHA-1: df12d15053340a9e2b74b714cdc7bff74b976e63 SHA-256: c300c0380bcb8caac89036aeeafa979f72eff2c888b1807a82b3034eb8ea2bd5

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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/123?utm_term=uh+west+oahu+academic+calendar PDF link annotation
- https://pefuxagofir.weebly.com/uploads/1/3/4/3/134359429/1ad0d.pdfIn PDF document text
- https://bupiwuzisulim.weebly.com/uploads/1/3/0/8/130874125/474122.pdfIn PDF document text
- https://voziguwotameba.weebly.com/uploads/1/3/4/3/134345279/visokumevu.pdfIn PDF document text
- https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/difugibozukilikagubu.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/fasomusogapovi/24959144785.pdfIn PDF document text
- https://s3.amazonaws.com/vavabi/john_glenn_middle_school_massachusetts.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4cdb462c-c30c-4840-b60b-cff3c933be52/2495265209.pdfIn PDF document text
- https://s3.amazonaws.com/soxukowotomaj/the_redemption_manual_4.5_free_download.pdfIn PDF document text
- https://s3.amazonaws.com/bubodeliza/75097279241.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e963a5a4-f78d-4f39-8529-85c30eec7674/mean_of_discrete_probability_distrib.pdfIn PDF document text
- https://s3.amazonaws.com/ronenitevodo/oc_caste_list_in_andhra_pradesh.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/efd1c6b0-abfa-4c51-835b-d6f81ee3c0b4/pusha_t_lauryn_hill_coming_home_down.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_off0000c464.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC464	5260 bytes
SHA-256: `b925a9d3a07339fd0c48303320fc2b6c957ef1eb183154dd5577da76bfd86b96`
`font_01_sfnt_off0000d62f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD62F	10404 bytes
SHA-256: `431dc191e5721dc91d294b24da9411677edf2fdd759a0da75587e15ec7c303a4`

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