PDF malware analysis — malicious · d44680f4b275f080

MALICIOUS

PDF

74.8 KB Created: 2021-03-14 09:26:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 94eadc5b9f483e0793a4421ec9896a53 SHA-1: 6589ac08aed9d09c46ca639f64cadfd445601cd5 SHA-256: d44680f4b275f08036c1719f9ee22242cbfb79479d409d373a5fd0dfc18a8c3f

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that redirects to a malicious domain, likely to deliver a phishing or malware payload. The ML classifier and ClamAV detection strongly indicate malicious intent, and the embedded URL is the primary indicator of compromise. No scripts were extracted, but the PDF structure and embedded URI are sufficient to infer a phishing or malware delivery attempt.

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://pelibifir.ru/wix?keyword=half+life+calculations+worksheet+answers
- http://saridiz.22web.org/14114104902.pdf
- https://vutuzanepe.weebly.com/uploads/1/3/1/4/131453188/lefinif.pdf
- https://zejenabo.weebly.com/uploads/1/3/0/9/130969472/zuvirurupikugab.pdf
- http://nudevego.iblogger.org/4509062214.pdf
- http://dazarutos.22web.org/wall_street_journal_review_of_iphone_12.pdf
- http://ramuwesitavoz.mywebcommunity.org/the_singing_machine_cd_player.pdf
- https://tewijudejasivi.weebly.com/uploads/1/3/2/6/132682467/weginafewexefene.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://vofolosozoz.epizy.com/emiway_all_song_free.pdf
- http://suferipuwa.epizy.com/57073806724.pdf
- http://lawewil.atwebpages.com/viktor_frankl_books_list.pdf
- http://fizuxobitunoge.epizy.com/color_my_world_flute_sheet_music.pdf
- http://vufagozujidivu.epizy.com/autocad_2010_free_for_pc.pdf
- http://wigezenefibi.epizy.com/assistive_touch_iphone_4.pdf
- http://bemeridalazobox.epizy.com/reported_speech_exercises_intermediate_level.pdf
- https://s3.amazonaws.com/wexukufedepim/30858188416.pdf
- https://s3.amazonaws.com/wowonesoribu/android_phone_dialer_source_code.pdf
- https://s3.amazonaws.com/vavejijitatofu/the_100_dollar_startup_summary.pdf
- http://bebovufuvuji.myartsonline.com/40027299680.pdf
- https://s3.amazonaws.com/sevoga/vuxeruz.pdf
- http://poweradufuxi.epizy.com/bidaginitejiva.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_off0000e74d.bin` `6a25f4c934615acc197ae92452194ad78b563777283b8eb82ee445f8110c3994`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE74D	5084 bytes
`font_01_sfnt_off0000f8a6.bin` `6603aea9e20f908e7e866e918956e013e2d66cfc00d64d81a41360071f4f2851`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF8A6	10936 bytes

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