PDF malware analysis — malicious · 663bc833da29744f

MALICIOUS

PDF

67.3 KB Created: 2021-03-02 14:16:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 60c66106bd80aa7666f84310b636974f SHA-1: 7cb9744b57c25c722d0bf2041556f045e8663e90 SHA-256: 663bc833da29744f972264a5bcb50aee83e0b377c4e8cfb0c197800f5c5865d9

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI pointing to a suspicious domain, and the ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to a 'Brookstone grill alert app'. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site, likely for phishing or malware delivery.

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://nipisod.ru/123?utm_term=brookstone+grill+alert+app+iphone
- http://leledup.mypressonline.com/graphic_design_programs_for_chromebook.pdf
- https://cdn.sqhk.co/sizafutito/939jihc/zivajomigigugesawa.pdf
- http://milanomoda-italy.site/24849046366wacrw.pdf
- http://stroy-level.ru/texas_instruments_ti-30xa_resetgdehy.pdf
- https://cdn.sqhk.co/vipujitebiki/agfCaxJ/turbo_kit_for_2004_5._3_silverado.pdf
- http://natorg.fun/algebra_de_baldor_pag_161_ejercicio_98_resueltohfsbd.pdf
- http://fobativ.mywebcommunity.org/xiwixanagodukado.pdf
- http://afracheat7.xyz/is_nikon_d40_still_a_good_cameraao4gb.pdf
- http://freshmind.net/ip_man_3_parents_guidel6u7e.pdf
- https://cdn.sqhk.co/vumusokutil/Dgijfjj/beli_pulsa_listrik_bayar_belakangan.pdf
- http://sberetransfer.online/eulogy_template_for_dad_ukxgjkx.pdf
- http://watertea.space/51043203295ninib.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://gonegexunu.myartsonline.com/tecumseh_carburetor_replacement_parts.pdf
- https://s3.amazonaws.com/wexoteluwag/73499830455.pdf
- https://s3.amazonaws.com/julexekubaj/why_my_smart_tv_wont_connect_to_the_internet.pdf
- https://s3.amazonaws.com/vixuwogetiv/9632449755.pdf
- https://s3.amazonaws.com/wujodibu/brother_tn_420_toner.pdf
- http://naburonip.myartsonline.com/conexant_audio_driver_windows_10_dell_inspiron.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_off0000ca2c.bin` `ef4fb39aa4e30f4deeaf3117a40a4a95e53ce3e7f6b5efa46c01b7a176e18316`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA2C	5196 bytes
`font_01_sfnt_off0000dbd6.bin` `6d340add7d92d0883f618e8ca87b27974aa06deaf0fe3f1db8d36667a32494df`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDBD6	10676 bytes

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