PDF malware analysis — malicious · bcdbfeee8f05c404

MALICIOUS

PDF

74.3 KB Created: 2021-01-27 11:43:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23

MD5: 7182370648255ed237e282ba47430c8a SHA-1: 54895ed7be6a06b21dc3a7b472a7ed096f52a5e0 SHA-256: bcdbfeee8f05c4049934569a34e6bb35bc24f335be9e3aef768a4889605fbc4f

224 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating it is a phishing or trojan delivery attempt. It contains embedded links to known malicious redirector infrastructure, such as https://cctraff.ru/wb?keyword=rogue%20soul%202%20side%20scrolling%20platformer%20game, and also functions as a link farm pointing to disposable hosting. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document may instruct the user to open a password-protected archive, a common tactic to bypass gateway security.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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.
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://cctraff.ru/wb?keyword=rogue%20soul%202%20side%20scrolling%20platformer%20game In PDF document text
- https://cdn.sqhk.co/dedogupazib/SqXjgAR/tajidemuvodisozem.pdfIn PDF document text
- http://auto-agents.space/supoxanedesuraregasikexinvacs.pdfIn PDF document text
- https://cdn.sqhk.co/rexixugepir/Miijcjc/1690192030.pdfIn PDF document text
- https://xesinuvukuwufo.weebly.com/uploads/1/3/0/7/130776104/4d89a149887d7da.pdfIn PDF document text
- http://helper-badges.com/malayalam_orthodox_biblezgbm1.pdfIn PDF document text
- https://xajomorunineg.weebly.com/uploads/1/3/1/3/131383441/sabujupexowifokusut.pdfIn PDF document text
- http://gimakelodikovij.iblogger.org/sql_interview_questions_and_answers_on_joins.pdfIn PDF document text
- http://ch-bewertung-2888.xyz/solutions_upper_intermediate_students_book_vkghtyk.pdfIn PDF document text
- http://construt.site/mx_audio_player_music_playingclmr6.pdfIn PDF document text
- https://gogesatita.weebly.com/uploads/1/3/4/3/134321397/4421322.pdfIn PDF document text
- https://cdn.sqhk.co/pobusafi/ihgjghc/skyblock_ip_bedrock.pdfIn PDF document text
- https://cdn.sqhk.co/xibumediw/3ohj0hf/58157306071.pdfIn PDF document text
- http://zupedaganivo.66ghz.com/find_duplicate_in_excel_spreadsheet.pdfIn PDF document text
- http://nagonakog.22web.org/57257006105.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://laganomezavarof.epizy.com/axios_post_request_with_form_data.pdfIn PDF document text
- http://batogegimuwew.rf.gd/68477134005.pdfIn PDF document text
- http://numivonef.rf.gd/28356628110.pdfIn PDF document text
- http://wodasakuzetu.rf.gd/darth_plagueis_espaol.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000cad8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCAD8	5612 bytes
SHA-256: `0f273e52c875bc1909288929c722708c9c4792eefeecd8df35fe191975e3ce8c`
`font_01_sfnt_off0000ddee.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDDEE	12300 bytes
SHA-256: `a2fc7bbc05459fa7734897b40d5285fed3e859077117842813bd0cb619cf8663`
`font_02_sfnt_off0001064e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1064E	16208 bytes
SHA-256: `22e3ed72ec786726e24aeec7aff45d373814b70caf4fc246d2ab4bb179c318f6`

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