PDF malware analysis — malicious · 78da4011ee94dc02

MALICIOUS

PDF

97.4 KB Created: 2021-03-22 12:28:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 068956b41515759b69a6a8a6507a4141 SHA-1: 515ef0d9357eb4c3e517b358a71907833c29c5d4 SHA-256: 78da4011ee94dc023c3b92832675d8b7a557a0f7a8d131bbf6b0c32e105f0455

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that, when clicked, leads to a domain associated with phishing or malware distribution. ClamAV detection and ML classification strongly indicate malicious intent, likely to deliver a phishing lure or a second-stage payload. No scripts were extracted, but the presence of an external URI and the overall detection profile suggest a phishing or malware delivery attempt.

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://seumenha.ru/award?keyword=public+finance+and+taxation+cpa+pdf
- http://lufatomitonad.22web.org/jumper_song_lyrics_meaning.pdf
- http://insta-sale.site/what_can_i_put_on_my_newborns_face_rashttneu.pdf
- https://cdn-cms.f-static.net/uploads/4377120/normal_60438ee944b37.pdf
- https://cdn.sqhk.co/medujebukoma/chjeyjw/vita_fighters_homebrew.pdf
- https://cdn-cms.f-static.net/uploads/4389603/normal_5fd0ea2a2740f.pdf
- https://cdn-cms.f-static.net/uploads/4465924/normal_6044266c1ffc5.pdf
- https://cdn-cms.f-static.net/uploads/4426269/normal_6033c777bd7c8.pdf
- https://cdn-cms.f-static.net/uploads/4473637/normal_6041e691ea2dd.pdf
- http://vladmer.ru/30070451500nqbxp.pdf
- http://tihefers.online/sundara_kandam_slokas_in_englisha4b0s.pdf
- http://ritixabig.iblogger.org/maths_questions_for_class_3_with_answers.pdf
- https://cdn.sqhk.co/veletafi/ZY7ilhd/happy_poo_jump_apk.pdf
- https://cdn-cms.f-static.net/uploads/4478146/normal_600f40c0e1e75.pdf
- https://cdn-cms.f-static.net/uploads/4375199/normal_60241b746a6c5.pdf
- https://cdn-cms.f-static.net/uploads/4425255/normal_604f1a136767d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://dufenujel.rf.gd/83901410372.pdf
- https://s3.amazonaws.com/jupevuxirapi/biregipojinewipap.pdf
- https://s3.amazonaws.com/gazivemon/zemofu.pdf
- http://momebemobife.rf.gd/tirijoga.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_off00013dbb.bin` `afb3d1c0032fbb202c16fc85005dad1ad4d7573efc92afd8632923e053e38a86`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13DBB	5084 bytes
`font_01_sfnt_off00014f22.bin` `e73a9719bb992c67389580ba370a3ca316f129f6653eaddb0b8777b76e481962`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14F22	12060 bytes

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