PDF malware analysis — malicious · 7ca94c83021ecb6f

MALICIOUS

PDF

88.8 KB Created: 2021-04-27 14:40:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: eeba94f727481476f7923633e4a8d19f SHA-1: 2b09c0aba60d798fc6ddf5f856159f1f629696e9 SHA-256: 7ca94c83021ecb6f960b45674b7547e493eec3c4a0726a5f1ca189bfc710001a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded URLs, with one specifically identified as a potential lure related to 'Cummins isx service schedule'. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and numerous external URLs suggest it is designed to redirect the user to malicious content, likely for phishing or to download further malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=cummins+isx+service+schedule
- http://damita.fun/survival_of_the_fittest_mtg_legality2x1n8.pdf
- http://trackengine.host/best_self_propelled_lawn_mower_2020_australia1qhi5.pdf
- http://cosmosqrab.online/contrato_de_arrendamiento_vivienda_word_mexico7l079.pdf
- http://winoraama.fun/51668413137bvtav.pdf
- http://about-central.com/75313527200lulb7.pdf
- https://cdn.sqhk.co/fafujedajir/lhaJEl3/micro_battles_3_4pda.pdf
- https://cdn-cms.f-static.net/uploads/4454182/normal_60274311c8de5.pdf
- http://alisabor.design/clothes_activity_worksheetk3ntw.pdf
- http://lusolakidareve.mywebcommunity.org/25941804256.pdf
- https://static.s123-cdn-static.com/uploads/4498882/normal_5fe1be192ae35.pdf
- https://cdn.sqhk.co/kobedobofepo/fgiiceu/cairo_club_orlando.pdf
- http://balegetiwep.mywebcommunity.org/993934906.pdf
- https://cdn-cms.f-static.net/uploads/4408993/normal_604cf2753523a.pdf
- https://cdn.sqhk.co/vibebexez/0ia8Njf/satuvapupajepuzarunuk.pdf
- http://teachost.com/dowujuffocop.pdf
- https://cdn.sqhk.co/vabedesi/iMiMajW/janipinan.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- 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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000112c8.bin` `36eea3e97848ce56c0d21873b12aaf52309aa38eaa156bea914b8aa8acc3d953`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x112C8	4812 bytes
`font_01_sfnt_off000122ea.bin` `d8dc5c5c08109998c618a2576dc4c9802788ae9fe409b5fa94dad510658e637a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x122EA	10976 bytes
`font_02_sfnt_off00014850.bin` `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14850	4324 bytes

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