PDF malware analysis — malicious · 0ec4852dbf33d1d5

MALICIOUS

PDF

76.9 KB Created: 2021-03-22 17:14:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23

MD5: 6bc62f29840eba86b438af4566cbe4ed SHA-1: 8fd8c24959a5590d4b99347610aa589200a5a677 SHA-256: 0ec4852dbf33d1d516a74d9d114685db73a33c8299d0760505b4c108b280f0c8

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 0.9991

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://xezojetit.ru/award?keyword=appendix+in+thesis+pdf PDF link annotation
- https://cdn-cms.f-static.net/uploads/4454968/normal_601dd214e5ea1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366961/normal_5fca834fa9c0d.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4495039/normal_600933fce485c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481286/normal_60256339a743d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4464720/normal_60545fbf28c0a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4387581/normal_5fe2d3da6707e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450141/normal_603095ca6be00.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375204/normal_601f1c09747f8.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4494452/normal_5fee127148205.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489411/normal_6014bf086df77.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/ec87984e-4047-4683-af5d-b40bfb0358db/zawajutaw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/77bf3c0a-56b1-4d6e-b722-da369099851b/vaporesso_renova_zero_care_vape_pod.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6af7e13f-d284-4a10-8f99-942d04957024/what_is_the_point_of_tales_from_the_loop.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8cff607f-6654-436f-953d-73a828f243fd/muligigiwu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2b517352-95a2-4967-8348-c00a1f57f15d/46372226106.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b9ec6773-d060-4a4c-8782-fb8b142c29db/kekuzevivuwijiz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9888b1e1-7b08-43b1-b707-990a9f759770/lizebuzebun.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c865efd5-9d58-47ed-b5bc-e67e2d1795a7/88618691795.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f5ecc393-2070-4992-a725-614be74bb66b/womipiwo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d1880289-49a5-4de6-8d55-6df677309f21/pidoxuwutagarekufefinafe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c811458b-c415-43e0-b04d-0d9b3fe68be5/what_does_latching_alarm_indicator_mean.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a0214b0d-861c-4da1-9e91-8fcf64f19a10/what_is_an_example_of_form_in_poetry.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/94edad7b-4fcd-4615-a69b-2d6ed2302a87/fovarabupaxerewa.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e518.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE518	4524 bytes
SHA-256: `8e8da0f6f8324fcf68aadc73f3406ebed3e8c30da6d1ae273c41d7dd4c766545`
`font_01_sfnt_off0000f470.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF470	10584 bytes
SHA-256: `1cb19d7832704fcca7cde41f552eb73f4a52df39ef612a71dca70db63aa7d021`
`font_02_sfnt_off00011843.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11843	4324 bytes
SHA-256: `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`

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