Malicious PDF — malware analysis report

Static analysis result for SHA-256 2394c66293d3b494…

MALICIOUS

PDF

68.1 KB Created: 2021-03-11 15:14:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: cec8b62d7480b6c4f00a66979d9c0f7e SHA-1: 388b9b2670cb953f9f4b271f263da5f9e7e7e6b0 SHA-256: 2394c66293d3b49423476a2c91010757dc3599321b2aad03dca31d2cafe7d318
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, with one pointing to a suspicious domain ('resalured.ru') that is likely used for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://resalured.ru/123?utm_term=harman+report+viability+testing+local+plans PDF link annotation
    • https://xidelesa.weebly.com/uploads/1/3/4/4/134498911/a0632275fb9b2cd.pdfIn PDF document text
    • https://konovupifa.weebly.com/uploads/1/3/0/7/130775136/wojadewenibu.pdfIn PDF document text
    • https://cdn.sqhk.co/toromerepowa/Ihgicja/donde_pagar_mi_internet_en_casa_telcel.pdfIn PDF document text
    • https://wazajodowefode.weebly.com/uploads/1/3/4/0/134017502/fuwutabewad-xuroxelak-gatuzosegelaw-jikisusimibuvid.pdfIn PDF document text
    • https://cdn.sqhk.co/pesasotiro/pDqChi6/algebra_solving_equations.pdfIn PDF document text
    • http://kesuvajeb.scienceontheweb.net/descargar_agenda_2020_para_imprimir_gratis.pdfIn PDF document text
    • http://lelonul.iblogger.org/odontogenic_cyst.pdfIn PDF document text
    • https://modatubegawaso.weebly.com/uploads/1/3/4/4/134491319/1408840.pdfIn PDF document text
    • https://cdn.sqhk.co/noneniwetav/izhhifd/takeout_restaurants_around_us.pdfIn PDF document text
    • https://cdn.sqhk.co/woravejafeto/gejjGjc/721910503.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pegozegi/besozonetogikuneliw.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/fistula_preaurikular_adalah.pdfIn PDF document text
    • http://koradanizepagow.myartsonline.com/why_are_primary_and_secondary_standard_solutions_needed_in_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/clinell_wipes_safety_data_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/burger_hd_pictures_free.pdfIn PDF document text
    • http://besafetusupug.atwebpages.com/what_is_the_main_idea_of_the_play_antigone.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/siminizalaredutupukudixu.pdfIn PDF document text
    • http://bupikizatigog.rf.gd/cc_and_bcc_full_form_in_mail.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/mixapezuv.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/far_cry_3_ps3_trophy_guide.pdfIn PDF document text
    • http://wumoxafu.epizy.com/62275436043.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF7B 5516 bytes
SHA-256: 9de61462e9965e39300f678cfacf1a3e64a26daaf4635376eef35d03ed2c0e45
font_01_sfnt_off0000e230.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE230 9588 bytes
SHA-256: c231183e99e000ec6ed600c16bfa5db7402ae17452e2dc59da227b8269af6fa7

Open this report in the interactive analyzer, or submit your own file for analysis.