PDF malware analysis — malicious · e4ff33471e38b2fc

MALICIOUS

PDF

82.7 KB Created: 2021-03-02 08:46:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a69e126312c6ea2192d398bcb9c7968d SHA-1: 7d9196007923062c816bd35676d30ec476684c48 SHA-256: e4ff33471e38b2fcd8a175ec26c2a92bad01de86608d118bb8f39764f6ec75ce

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded URLs suggests the document is intended to redirect users to external sites, likely for phishing or malware distribution. The PDF structure and embedded content, despite being heavily obfuscated, point towards a malicious document designed to exploit users.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/123?utm_term=fraud+examiners+manual+2019+pdf
- https://cdn.sqhk.co/xakalodesi/dhjpVic/wisadekudug.pdf
- https://static.s123-cdn-static.com/uploads/4366965/normal_60020bbe39fbd.pdf
- http://kawlites.online/salanipufalifobikaxemejim1k.pdf
- https://cdn-cms.f-static.net/uploads/4446914/normal_602cffbea20d1.pdf
- http://gdztut.com/53316050271o2w6j.pdf
- https://cdn-cms.f-static.net/uploads/4373997/normal_602f8b68ade67.pdf
- https://cdn.sqhk.co/sasibasodiwu/gejjgjf/dorulez.pdf
- http://tersq.fun/the_big_short_full_movie_in_hindi_onlineanyob.pdf
- http://inmyshtangen.xyz/how_many_layers_tcp_ip_protocol_hasu5tyv.pdf
- https://cdn.sqhk.co/raninogozo/hhbgHii/72113785751.pdf
- https://cdn-cms.f-static.net/uploads/4405186/normal_602f16fd8cc48.pdf
- https://cdn-cms.f-static.net/uploads/4408993/normal_601024d518658.pdf
- https://cdn.sqhk.co/purilusevike/iglTidA/gizekak.pdf
- http://winoorama.site/download_nook_book_as_epuby0euh.pdf
- https://static.s123-cdn-static.com/uploads/4479942/normal_6008d031873e0.pdf
- http://insurerhome.ru/chefdom_mod_apk_android_1qkrn9.pdf
- https://cdn.sqhk.co/borefigux/9k0gggc/subway_train_simulator_2_roblox.pdf
- http://drive4mclaneeffingham.com/36495186718wxkac.pdf
- https://cdn.sqhk.co/teketerep/Vgejige/zuwopozikonugate.pdf
- https://cdn-cms.f-static.net/uploads/4460980/normal_603994cf6cf66.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- 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_off0001033d.bin` `6b8f63b844c7c676f35ddfef097027468648db7e646807e6abb1c03db63e3a55`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1033D	5692 bytes
`font_01_sfnt_off0001168c.bin` `698c76686bae191d2d786de23781b15314206847bbd6f7f72229463cd61f3c5e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1168C	11372 bytes

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