PDF malware analysis — malicious · 20b90942e0a64513

MALICIOUS

PDF

64.4 KB Created: 2020-11-14 22:46:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: d4d3bdcab1480b3b6f11eeeabd00b428 SHA-1: d58f2be9bf222f46de24f13e3b157ea59026f237 SHA-256: 20b90942e0a64513471b26cd54521c3d579b47b7a5c0887c504ece0e65914bc6

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a lure related to stereotyped movement disorders, directing the user to a suspicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

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://trafftec.ru/strik?utm_term=trastorno+de+movimientos+estereotipados PDF link annotation
- https://cdn-cms.f-static.net/uploads/4369665/normal_5fad84c51afdf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372987/normal_5f966b6757f74.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373509/normal_5fa32f7f1ebe4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405899/normal_5f9805ff59a9a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374847/normal_5f96322bd904b.pdfIn PDF document text
- https://tovozilulu.weebly.com/uploads/1/3/0/8/130873983/bodemodefese.pdfIn PDF document text
- https://boxolajabamofi.weebly.com/uploads/1/3/4/3/134356625/3a8bb2894ba70a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4391903/normal_5f9df3e9a33f8.pdfIn PDF document text
- https://gokaveruziniva.weebly.com/uploads/1/3/4/5/134580144/sabijajazamajizusem.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/jaxesabi/lajit.pdfIn PDF document text
- https://s3.amazonaws.com/minegikukovel/cheap_thrills_song.pdfIn PDF document text
- https://s3.amazonaws.com/jasadavebaga/53689186737.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_off0000bbc3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBBC3	5080 bytes
SHA-256: `6288992452ecfd50f0f3374e9f1654f277bba4fb6985a6a00777d96ec0a03b58`
`font_01_sfnt_off0000ccf5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCCF5	11776 bytes
SHA-256: `8f8065d798934c39762a71e96211b57f4cf4be84b27301c663caccac651198b6`

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