PDF malware analysis — malicious · cc826de99f1781e5

MALICIOUS

PDF

85.6 KB Created: 2021-04-27 00:48:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 75d09bcf76e6b06b4545c789508c7f69 SHA-1: 849b47422346b839329aefc1236a45751b7f8233 SHA-256: cc826de99f1781e523959e8e0fbcfe6f0f0a04d266a7dc56cf06d3c9bbebc5cd

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many pointing to disposable hosting, and one specific URL is associated with a phishing lure related to a movie trailer. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and numerous external links suggest it's designed to redirect users to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9986

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://xajibur.ru/strik?utm_term=the+miseducation+of+cameron+post+trailer+subtitulado PDF link annotation
- http://parovosi.mygamesonline.org/die_buddenbrooks.pdfIn PDF document text
- http://duwadomet.22web.org/ribejetotazevadadano.pdfIn PDF document text
- https://gamajebijapam.weebly.com/uploads/1/3/1/8/131856653/440707.pdfIn PDF document text
- https://xojutezakiveze.weebly.com/uploads/1/3/5/3/135318362/baraxosew.pdfIn PDF document text
- https://zigozerapudepi.weebly.com/uploads/1/3/5/3/135398300/rugaguzigomev.pdfIn PDF document text
- http://xubasis.22web.org/analysis_report_format_doc.pdfIn PDF document text
- http://wefigofozotime.22web.org/kaba_eplex_5000_change_code.pdfIn PDF document text
- https://reralifinopu.weebly.com/uploads/1/3/4/0/134018386/e01aee6ca8e57.pdfIn PDF document text
- https://jibijuzevigux.weebly.com/uploads/1/3/5/3/135333604/xojijud.pdfIn PDF document text
- http://riragukigud.scienceontheweb.net/icao_annex_16.pdfIn PDF document text
- http://mobufuwiwid.medianewsonline.com/resirekizozimadetu.pdfIn PDF document text
- https://bexusisase.weebly.com/uploads/1/3/4/5/134596812/3380675.pdfIn PDF document text
- http://viwavidif.getenjoyment.net/40987703959.pdfIn PDF document text
- https://kunoloxudiruk.weebly.com/uploads/1/3/4/7/134767428/tagebig_dirinidiz.pdfIn PDF document text
- https://xitukamobem.weebly.com/uploads/1/3/4/6/134643312/614fef6c8f4cb8.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
- http://safodur.epizy.com/new_practical_chinese_reader_textbook_vol._2.pdfIn PDF document text
- https://s3.amazonaws.com/figugipopar/annexure_format_for_appointment_letter.pdfIn PDF document text
- https://s3.amazonaws.com/lakujusitejojet/free_adobe_after_effects_intro_templates.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aeb41728-4c9a-45c2-9883-4fecab75289d/25692603334.pdfIn PDF document text
- http://taxisariwoboduz.epizy.com/hey_brother_avicii_songs.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c78cc40a-7a42-44dc-a25d-25112246b905/sadimo.pdfIn PDF document text
- https://s3.amazonaws.com/jezaxojipevu/streamable_video_chrome.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/af850b33-cb71-44a9-8c33-d6f134103093/xotudalexekego.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_off0000ff3a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFF3A	5368 bytes
SHA-256: `9e3a34c95736eec999778a82f484ab0ac1ae8811bf25c9a719da2a60ab1b2ba2`
`font_01_sfnt_off00011143.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11143	12144 bytes
SHA-256: `52b5e6a4bd08ec384fe05ad3a78d8521ace5e2a6d6842a6f1748d66bf9a15c08`
`font_02_sfnt_off000138d7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x138D7	4324 bytes
SHA-256: `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`

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