PDF malware analysis — malicious · 47f498c53609cfff

MALICIOUS

PDF

73.8 KB Created: 2021-03-21 09:09:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: fd0475e77afc8f94d17796c0c80d9199 SHA-1: 74d21947a416532729cc3701f8a2a7925ce01244 SHA-256: 47f498c53609cfff9c2115844eb67efd93ab6250fe070a9e65603441b938ff7a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to host malicious content or redirect the user. The document body, though heavily obfuscated, suggests a lure related to a 'physical anthropology study guide', aiming to trick users into visiting the malicious URL.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/123?utm_term=physical+anthropology+study+guide
- https://cdn.sqhk.co/xetilibul/KXgdhfL/fallout_shelter_free_no_download.pdf
- https://cdn.sqhk.co/tisewesir/hgdhih8/ringtones_for_android_songs.pdf
- https://static.s123-cdn-static.com/uploads/4375209/normal_5ff92abcc4534.pdf
- https://cdn.sqhk.co/mejofiwog/jdXbhgL/sharpening_steel_vs_whetstone.pdf
- http://gegejobusi.22web.org/aaliyah_i_miss_you_video.pdf
- https://cdn.sqhk.co/wabajevebe/QZpijih/kuzab.pdf
- https://cdn-cms.f-static.net/uploads/4387718/normal_602330467b66c.pdf
- https://cdn.sqhk.co/josozudibud/cI2ghic/sticker_make_for_whatsapp.pdf
- http://beremoter.online/nfl_sunday_ticket_fios_channel9ttrb.pdf
- https://cdn-cms.f-static.net/uploads/4443357/normal_60449f47cc71c.pdf
- https://cdn.sqhk.co/disanefamu/ihjdbyw/h_and_m_near_me_now.pdf
- https://cdn.sqhk.co/ribafesupuro/hdMiiaJ/gambero_rosso_magazine_english_ed.pdf
- http://moshon.space/social_science_research_network_visual_learnersly1pw.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/paxuvagal/secondary_cementum_formation.pdf
- https://s3.amazonaws.com/lorerexeg/34358636093.pdf
- http://gobusef.rf.gd/juwubufaxazulunasele.pdf
- http://todubina.epizy.com/spreadsheet_deutsch_google.pdf
- https://s3.amazonaws.com/lowebemuwojiso/25234938595.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_off0000e5bb.bin` `83d9e75512f50a3e49ce2a9958d7f6c34a3cc95d0b7407eaef95847360811ee5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE5BB	5440 bytes
`font_01_sfnt_off0000f83d.bin` `23bceeb4d28274852e8cc8a9e9e0e3a95321d90dd17168b8c1988941003a4d6a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF83D	9960 bytes

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