PDF malware analysis — malicious · 9f669ec8239aa2a9

MALICIOUS

PDF

74.6 KB Created: 2021-03-03 05:05:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: faee1505c6e1435df061edb3ac860fb0 SHA-1: 9f3b88c985087bb7904f142e2e98f614ecd12df8 SHA-256: 9f669ec8239aa2a928e2274754008326f17f5e76b5444feff5b60b16c7ffa5a8

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a website disguised as an educational resource. This URL is likely used to deliver a malicious payload or phish for credentials. ClamAV and ML classifiers strongly indicate maliciousness, and the PDF_URI heuristic confirms the presence of an external link.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wix?keyword=interactive+science+grade+6+sound+and+light+answer+key
- https://cdn.sqhk.co/sifolilo/PJgc7hi/descargar_tic_tac_toe_glow_apk.pdf
- https://fekawuzode.weebly.com/uploads/1/3/5/9/135993312/deb13.pdf
- https://pagafamowadaf.weebly.com/uploads/1/3/4/8/134878907/dofin.pdf
- https://bonikelebosobi.weebly.com/uploads/1/3/2/8/132814552/d969bceb64f.pdf
- http://ziwegiwe.iblogger.org/diwedoroxuveliguguji.pdf
- https://cdn.sqhk.co/turovonunido/fjfhg4A/43663739289.pdf
- https://cdn.sqhk.co/gewowamizes/bhj1hgS/us_gas_price_history_graph.pdf
- https://cdn.sqhk.co/tamupoto/hjaWZja/guncrafter_american_1911.pdf
- https://cdn.sqhk.co/xevowuto/ghhcghx/street_fighting_2_multiplayer_mod_apk.pdf
- https://narefipikabisip.weebly.com/uploads/1/3/2/6/132682930/9442768.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://kojusefum.rf.gd/the_sea_of_monsters_book_report.pdf
- https://s3.amazonaws.com/sefiwegegagu/sedofavuwuwidemekimon.pdf
- https://s3.amazonaws.com/bejenosugede/sovun.pdf
- http://vaxomuterok.epizy.com/jaripibirijolubunevom.pdf
- http://tugoxejemikoze.epizy.com/serijirewiz.pdf
- https://s3.amazonaws.com/fofeguj/9apps_install_2018_games.pdf
- http://bifovigavij.myartsonline.com/xomuf.pdf
- https://s3.amazonaws.com/regufojalojaza/cyber_security_vs._information_security.pdf
- https://s3.amazonaws.com/pululusodogi/farming_simulator_18_guide.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_off0000e1b9.bin` `d8cc0e35cbc1bc39bec90ba9f11f816a4df2a828f87a2c2d8aaab93df184db56`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE1B9	5608 bytes
`font_01_sfnt_off0000f4dd.bin` `2d7a174d1f6dc1e364963d964ea8a5e968327ac54ead037af4054164ef142d38`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF4DD	12100 bytes

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