PDF malware analysis — malicious · c96ed3e6a666d00e

MALICIOUS

PDF

72.0 KB Created: 2021-03-12 11:03:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30

MD5: a2ed24d2675ab9a64bdc86eea06debd1 SHA-1: 97ed5c25f8f85f60bb7b1367834a0245b83d7a93 SHA-256: c96ed3e6a666d00e3427799b6fe20828f653595450f8c49ae86901745d92cac3

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The PDF utilizes a link farm strategy, embedding numerous URLs that likely lead to malicious content or phishing pages, with one prominent URL being https://seumenha.ru/award?keyword=biblia+catolica+pdf+completa+gratis. The document body, though heavily obfuscated, suggests a lure related to a 'free bible PDF'.

Machine Learning

Nyx PDF Classifier malicious score 0.9994

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://seumenha.ru/award?keyword=biblia+catolica+pdf+completa+gratis PDF link annotation
- https://cdn.sqhk.co/litojavu/eeFicgK/smart_car_dealership_locations_near_me.pdfIn PDF document text
- http://mobeditobaxul.scienceontheweb.net/larepupuvogalu.pdfIn PDF document text
- http://pevazaw.mypressonline.com/dosisavemizanabaguve.pdfIn PDF document text
- http://botanilix.mygamesonline.org/teaching_phonics_worksheets.pdfIn PDF document text
- https://cdn.sqhk.co/zodunoxurob/1ialhgo/vorimekit.pdfIn PDF document text
- https://cdn.sqhk.co/monubinejon/h0ianjh/introduction_to_business_process_management_ppt.pdfIn PDF document text
- https://cdn.sqhk.co/sekigizakeku/gSmLpjj/temixirepoveker.pdfIn PDF document text
- https://cdn.sqhk.co/vilubofi/eWqPQ75/nexevazovabedujoxorom.pdfIn PDF document text
- http://jugepawe.medianewsonline.com/dispositivos_de_procesamiento_para_una_computadora.pdfIn PDF document text
- https://cdn.sqhk.co/lilovenodi/jiifFha/dixie_damelio_song_be_happy_clean.pdfIn PDF document text
- http://wekawuro.22web.org/autumn_leaves_guitar_sheet_music_free.pdfIn PDF document text
- http://lilidabegib.22web.org/94260052855.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://dc383e6d-b7a3-4e67-a88a-227fa542b6c3.filesusr.com/ugd/72b0e7_ac5c2147ddb04b9db9683a1b9ddfc8ab.pdf?index=trueIn PDF document text
- https://63c5840e-267c-49ed-94d3-fc9f9d8b9c0b.filesusr.com/ugd/8c5bc8_154917b223444ef7ba74957244a4e740.pdf?index=trueIn PDF document text
- https://cfc603e6-7cd4-4c42-812b-9722deb80ae4.filesusr.com/ugd/0e9fc2_7cb4cbb6facb46f987d3e8ebdbc0cabb.pdf?index=trueIn PDF document text
- https://f7690f66-1871-4559-97e0-239dee5b15da.filesusr.com/ugd/d2cc1f_21f0717d6fb6422faca8e26b00589cea.pdf?index=trueIn PDF document text
- http://fabedidatifi.onlinewebshop.net/acoustimass_10_series_iv_price.pdfIn PDF document text
- https://s3.amazonaws.com/gowebabuxogiro/how_to_install_corrugated_plastic_roofing_sheets.pdfIn PDF document text
- https://s3.amazonaws.com/zafijukopa/niniruguxo.pdfIn PDF document text
- http://buwojilow.rf.gd/fifty_shades_of_grey_dvd_cover.pdfIn PDF document text
- http://kunitugi.rf.gd/24825323457.pdfIn PDF document text
- https://s3.amazonaws.com/livivuvuwugeb/jimmy_choo_song_djpunjab_guri.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_off0000d19f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD19F	5348 bytes
SHA-256: `ef63f98215b69f17d9f8f92246ae6212c0c1c8b7307dbcd257ef5c16bef88a61`
`font_01_sfnt_off0000e3bf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE3BF	9668 bytes
SHA-256: `d7e787b588f33f53392500a4e676ceb9a47fbc6d66e7a818023a1fb46cdb82d3`
`font_02_sfnt_off0001043a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1043A	4324 bytes
SHA-256: `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`

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