PDF malware analysis — malicious · 78e1e8da4f735b78

MALICIOUS

PDF

68.8 KB Created: 2021-04-04 04:56:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bc07e71b904abb6b87ed80ff86050f57 SHA-1: 51031ed47f372c0cc2bae08c76da857a50423ce1 SHA-256: 78e1e8da4f735b78b6729460cc6a49ac7afb8a861b25ac7156d266703f235b8f

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL, identified by the heuristic PDF_URI, which points to a domain known for hosting malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the presence of the external URI suggests an attempt to redirect the user to a malicious site.

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://botokaw.ru/strik?utm_term=autocad+3d+building+dwg+download
- http://bijavamu.iblogger.org/android_studio_toast_shortcut.pdf
- http://baykamif.space/zozizedudutidileugdrd.pdf
- http://rte-ita.fun/what_are_the_ranks_in_one_punch_man_destiny10bol.pdf
- http://tajezedireg.iblogger.org/46553355553.pdf
- http://musc-media.xyz/berodoxakuwugaweaatp8.pdf
- http://rebujeboxuveme.iblogger.org/love_story_song_lyrics_telugu.pdf
- https://static.s123-cdn-static.com/uploads/4386363/normal_5fe1a5432a82b.pdf
- http://politach.com/259068054196bpm4.pdf
- https://static.s123-cdn-static.com/uploads/4373511/normal_5fdf7f013d2e2.pdf
- http://9gusevshop.space/cream_dapple_dachshund_for_salebm16g.pdf
- https://cdn-cms.f-static.net/uploads/4480161/normal_60190c536a1a6.pdf
- http://italywow.space/tugonis65d2.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/lomuper/mitejebupusoko.pdf
- https://s3.amazonaws.com/xezonijida/69850818548.pdf
- http://kenuzuwemonuda.epizy.com/xusosunivebur.pdf
- https://s3.amazonaws.com/dosalapasenow/silicone_gel_sheets_for_scars_australia.pdf
- https://s3.amazonaws.com/vitelitubovuluj/wulajaxevonap.pdf
- http://jabelakejirer.epizy.com/tupamuperexudikebusun.pdf
- https://s3.amazonaws.com/jevelel/32281561923.pdf
- http://xonelamurojili.rf.gd/66341874198.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_off0000d056.bin` `c483ea1c95ee8de0e982f434fd2c412d193f98883471126a0fffdba531d37473`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD056	5220 bytes
`font_01_sfnt_off0000e241.bin` `81c2401dae5e37b8c285f71c9dcca41cc9cd4de4e1e59f962c39091a8a714f45`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE241	9956 bytes

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