PDF malware analysis — malicious · e4cfd018358a0f0b

MALICIOUS

PDF

86.9 KB Created: 2021-03-16 01:55:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22

MD5: ef9a771695fa3b36bb3e4a52b3273092 SHA-1: 91dc6f428b9591a9570264d4bca1f995626df983 SHA-256: e4cfd018358a0f0bd7fce4a264b203e2e355af9f5febc54d00e5e81cc9547153

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9989

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://zajinet.ru/123?utm_term=free+html+template+for+cake+shop PDF link annotation
- https://cdn.sqhk.co/saxamabewido/jtkhcjh/mx_player_best_web_series_tamil.pdfIn PDF document text
- https://cdn.sqhk.co/tozegatopaxu/hbgjThd/63337813690.pdfIn PDF document text
- https://cdn.sqhk.co/gemadaruvow/gcNZigj/54460696258.pdfIn PDF document text
- https://cdn.sqhk.co/zegofurop/ejbjhgg/rojororewapavofalefil.pdfIn PDF document text
- http://gapijet.scienceontheweb.net/academic_writing_skills_3_teacher_s_manual.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/jusuberu/xikajeda.pdfIn PDF document text
- https://s3.amazonaws.com/kakekojezutok/deriving_from_a_template_class.pdfIn PDF document text
- https://s3.amazonaws.com/tevomenil/5249984764.pdfIn PDF document text
- https://s3.amazonaws.com/rezugekolaba/fire_action_notice_template_free.pdfIn PDF document text
- https://s3.amazonaws.com/vuraradaso/clostridium_difficile_idsa_guidelines_2018.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8d09ef10-b35a-4340-8dee-7db8bcc1b5ce/xurepuso.pdfIn PDF document text
- http://sajoveguduv.onlinewebshop.net/tutorial_ms_office.pdfIn PDF document text
- https://s3.amazonaws.com/dewutexorob/edit_to_word_online_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/12f5a16c-2580-454e-a68e-171db6ee4586/6746757473.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c28dda7c-6dfd-4423-954e-863080d35d2b/how_do_i_program_my_remote_to_directv.pdfIn PDF document text
- https://s3.amazonaws.com/zomuzigo/manual_paper_cutting_machine_15_20.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/51361f3f-1260-4b90-a7f8-b4deb7d7f1a0/sintomas_de_trombose_venosa_profunda.pdfIn PDF document text
- https://s3.amazonaws.com/wizomoravazub/what_is_the_theme_of_the_book_a_long_walk_to_water.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ae6abf42-8147-43f1-9b34-2aef1ab301e1/simmons_oneview_ufc.pdfIn PDF document text
- http://letutemoxeluz.onlinewebshop.net/pagatugudelupo.pdfIn PDF document text
- https://s3.amazonaws.com/zamemigojat/3650558620.pdfIn PDF document text
- https://s3.amazonaws.com/gumegulaxi/voregixomejelurisumi.pdfIn PDF document text
- https://s3.amazonaws.com/zidosozawok/90669241242.pdfIn PDF document text
- https://s3.amazonaws.com/jebokizez/sistema_circulatorio_histologia.pdfIn PDF document text
- https://s3.amazonaws.com/dinisemowoge/futubitare.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00010a57.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10A57	4908 bytes
SHA-256: `b6b5a285fb76d52ca2c583fadcabf9d18ce63dec61641beaa4e3a1d73d875fc6`
`font_01_sfnt_off00011b04.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11B04	10376 bytes
SHA-256: `75f3dffd96ada1f9b044e487164edb7aae07f96eb1d67a89b0a6778b32bef370`
`font_02_sfnt_off00013e75.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13E75	4324 bytes
SHA-256: `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`

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