PDF malware analysis — malicious · 13a7087c437546c4

MALICIOUS

PDF

96.3 KB Created: 2021-03-20 13:10:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23

MD5: 593a40e49bb2a7420f3f13bd8f5b8317 SHA-1: 984f6b813f10e87c6f02bf720069444c999e658f SHA-256: 13a7087c437546c4a812a859e9ba07658503dfd684b997d410f63a46d5ce55d3

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 0.9990

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://druttle.ru/wix?keyword=city+of+ember+test+pdf PDF link annotation
- http://differencecheats.net/problemas_de_porcentajes_encadenados_2o_esosu1bm.pdfIn PDF document text
- http://menformula.xyz/keto_diet_at_el_pollo_loco2dj14.pdfIn PDF document text
- http://lubevos.scienceontheweb.net/financial_modeling_with_crystal_ball_and_excel_2nd_edition.pdfIn PDF document text
- http://dommasters.site/15858442629ixpui.pdfIn PDF document text
- http://dommasters.site/adblocker_ultimate_browserkas7h.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://uploads.strikinglycdn.com/files/c2acaea3-0b5c-4f77-8a74-b050b3879911/fundamentos_del_marketing_stanton_etzel_y_walker.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/63de143c-ada2-41c1-8b15-446fedb37821/85963780642.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fb36bf9b-11d8-4881-8793-83a53115b594/25232150781.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e1b94da8-7176-4979-abf6-773beae76402/reglas_del_juego_adivina_quin_soy.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/08501ceb-9a26-454c-8fa6-9de27394e183/gilomizejanapujub.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e5f4a7c5-a942-47c9-bdb1-99fdc7e1a707/what_is_the_box_model_mcq.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3861925c-cbf2-45ef-b94f-c5fa714f32e6/vacante_de_gerente_de_alimentos_y_bebidas_en_puebla.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/401d5389-2f61-4456-9145-fce607c3b36c/navofipirodelasal.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4f1031ba-605e-4585-a134-8aaf7b3b4142/best_gopro_backpack_strap_mount.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2cfa262e-7b4d-4335-ab2a-b8179781192b/73499120180.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dce5ac86-c51f-4929-abec-acb51b9876a1/biwenapugid.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9da46fc2-9b96-4436-af6f-f09d248ebf28/17902093686.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3ac3c793-60f3-436e-be13-303fcecc1bd3/anand_sahib_short_english.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a67bc791-e551-436c-a9bd-9afe03e071a1/levatobuvipozewulataxoz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/559f690d-deaf-47b2-a829-2f0644a4ac1f/nlt_audio_bible_-_youtube.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b16a0ac2-72b0-4165-ad15-a47a9881f888/71290996005.pdfIn PDF document text
- http://juvusowupu.onlinewebshop.net/essential_agricultural_science_textbook_for_junior_secondary_schools.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000118ea.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x118EA	4892 bytes
SHA-256: `32c10703ef6c47361b5d7696b0f986b3896897b94ddc1995b4afb38d7bd8cbf2`
`font_01_sfnt_off00012998.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12998	11584 bytes
SHA-256: `73758d092283b0c332c46a18ad6d8500815110e06692a81594d16846e1f7cdc9`
`font_02_sfnt_off0001504a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1504A	16132 bytes
SHA-256: `6c511cd2548aab1566dad8f54fccf2be4cd056cf5a4d5d56937977fde9165995`
`font_03_sfnt_off0001653d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1653D	4324 bytes
SHA-256: `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`

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