PDF malware analysis — malicious · 950c5fc97bf3e080

MALICIOUS

PDF

186.0 KB Created: 2021-04-01 20:13:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0a9cd50c243aff6bb501edc2eed82de4 SHA-1: de0783ef2110aff8f747dbf7638a1db78ee8a54e SHA-256: 950c5fc97bf3e0804ab22746d398215603fa6506f980be8bec3eeb613a1a33fb

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a URL that appears to be a search result for game-related content, likely a lure to entice users to click. The presence of multiple embedded URLs, many of which are unknown or confirmed benign, suggests a phishing or credential harvesting attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://midufefew.ru/wix?keyword=mount+and+blade+gekokujo+character+creation
- https://cdn.sqhk.co/visukodo/SJJAhcu/horror_movies_imdb_list_2019.pdf
- https://cdn.sqhk.co/letarezetap/CKsihKb/40504930244.pdf
- http://litvinenko.xyz/my_cousin_rachel_movie_1952_review4qola.pdf
- http://shoes-storie.club/the_thorn_birds_movie_cast96rac.pdf
- http://nukicew.xyz/98142371621mrn0p.pdf
- https://cdn.sqhk.co/madufuxenuw/jjigBgc/70634954562.pdf
- http://hookup757.fun/doxur662si.pdf
- https://cdn.sqhk.co/tirabipati/jcjbWgc/cornell_note_taking_pages_template.pdf
- http://creditinquiry.info/776160865218lbae.pdf
- https://cdn.sqhk.co/jisaside/dWViggc/finudasusoduz.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://kotowadanoli.epizy.com/fojofipunopizepuzigodija.pdf
- http://fumitosavewi.rf.gd/time_warner_remote_not_working_with_cable_box.pdf
- http://kedenutorufet.rf.gd/38338707756.pdf
- http://lobidirubegevil.epizy.com/nojuxuzuluvevinire.pdf
- http://getakufo.epizy.com/53808748858.pdf
- http://wokasob.rf.gd/badufotafisewalosulaxuna.pdf
- http://gofudawaropuz.epizy.com/lukisuridibafajo.pdf
- https://uploads.strikinglycdn.com/files/55e897e1-8d53-40d3-a256-f50caff00d0d/xesipomanaxejig.pdf
- https://uploads.strikinglycdn.com/files/c01641b8-085a-47b8-929d-558450408899/verizon_hotspot_setup_iphone.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_off00029dd6.bin` `60b36d274647fd02548e15844d2b66cf400f91759d077598ffa6b26520a9f9af`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x29DD6	5308 bytes
`font_01_sfnt_off0002aff0.bin` `0e7cd030be015b6da2915d31a5537082be39e1d605148f27fbae8e9854234a4c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2AFF0	12004 bytes

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