PDF malware analysis — malicious · 3a4b10a09a35c610

MALICIOUS

PDF

74.9 KB Created: 2021-05-05 22:42:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 67b14500718417b0a4cf39df98e3555d SHA-1: c1d2f135fcc639381abaace969c3177629480f8f SHA-256: 3a4b10a09a35c6100d594140f4f475f8f74e38bc3962e852acc850f8b8cffa21

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains an embedded URL that directs users to a website seemingly related to medical treatment, but which is flagged as malicious. This suggests a phishing or scam attempt. The presence of ML and ClamAV detections further supports its malicious nature, likely involving the download or redirection to a malicious payload.

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://vilenefex.ru/wb?keyword=tratamiento%20medico%20para%20trombosis%20venosa%20profunda
- http://bawikivogo.22web.org/vivubofetajusof.pdf
- http://reduslim-italy.site/zoomer_kitty_costuuox0.pdf
- https://cdn-cms.f-static.net/uploads/4386349/normal_5fd17284bfc91.pdf
- https://liniraniz.weebly.com/uploads/1/3/5/3/135339257/bekefidu.pdf
- https://dopozagipixa.weebly.com/uploads/1/3/2/7/132741545/zeletoxar.pdf
- https://cdn-cms.f-static.net/uploads/4455658/normal_60281ce756759.pdf
- http://debodopox.iblogger.org/jemanutevezubobud.pdf
- http://predouche.xyz/law_cet_books_in_marathi_free_download3rpq1.pdf
- http://doorstepcomputers.com/ruregexanugebidusokujl53ms.pdf
- https://danikobunib.weebly.com/uploads/1/3/4/7/134755608/gevuxire.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://sanejiwobar.epizy.com/nipoduso.pdf
- https://s3.amazonaws.com/tikoweravisixu/nexelabowajulabire.pdf
- https://s3.amazonaws.com/pirofopafu/60203690667.pdf
- http://muropij.epizy.com/ways_of_the_world_3rd_edition_chapter_13.pdf
- https://s3.amazonaws.com/nawosineromigi/hotel_room_size_guide.pdf
- http://widuxetikos.epizy.com/moxubaza.pdf
- https://s3.amazonaws.com/jifesu/5252953856.pdf
- http://nudenagazosizav.epizy.com/99787630484.pdf
- http://fasizoj.rf.gd/wedivivonixiburatap.pdf
- http://vunowowino.epizy.com/wuxugufimomofebuvizogata.pdf
- http://zuzojep.rf.gd/how_to_use_cuisinart_little_pro_plus_juicer.pdf
- http://pizubape.rf.gd/update_internet_explorer_manually.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e87a.bin` `76669aab23093b78d5ec3ef4951579565decc0c33945fac18ed417b4f3addd04`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE87A	5420 bytes
`font_01_sfnt_off0000facf.bin` `cfb62990754ef22a2fb9e3129d307e23d11e874a293a22b14bee2052e32b5e9b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFACF	10324 bytes

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