Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad7d7161d118de05…

MALICIOUS

PDF

88.3 KB Created: 2021-03-25 00:51:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b46a48a03cb6ff620dea96b2e34f0f76 SHA-1: 5e93606b475979f16d94def84e1af5a2dbf8e0e8 SHA-256: ad7d7161d118de059264589851bbca946516225d406bee88c965350e389564aa
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9994

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://midufefew.ru/award?keyword=examples+of+mean+median+and+mode+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4381528/normal_604b697bd8b30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417137/normal_60273e6b08578.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvukidovime/hbSiajg/sufuvulobeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384649/normal_6033bb58d28c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474719/normal_6043385b448a5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485946/normal_5fdffa88415e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501791/normal_6053698489e06.pdfIn PDF document text
    • https://cdn.sqhk.co/nugizape/uAjbia0/photogrid_video_pic_collage_maker_photo.pdfIn PDF document text
    • https://cdn.sqhk.co/xenivoronizu/gjiaien/84761329536.pdfIn PDF document text
    • https://cdn.sqhk.co/fikalibumi/idqHTjc/entso-_e_maf_report.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485321/normal_601da88de2fa9.pdfIn PDF document text
    • https://cdn.sqhk.co/jivazufevi/jd8tyC3/jiwupakariresulidu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408190/normal_602ab959d5747.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472213/normal_5fd04988752dd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366978/normal_5ffa986d366ce.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/1b4d5f7d-ed45-49f3-9c1b-ead6ae037101/92693435581.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34666541-d96a-4e32-9d79-b50ddd97f743/timex_expedition_field_chronograph_amazon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/508cafbc-0ffd-43b7-a2ca-ea1e127a3788/state_gauss_law_in_magnetism_what_is_its_significance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/565484c5-9009-4f69-b675-f50b2de866be/cloudy_with_achance_of_meatballs_tv_series_characters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00a95410-608d-4ffb-ad79-a97e59eaab70/sezoro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c9e30c8-eccc-446b-9825-8c6b0cbbdb85/zidaru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13f02c1c-de5f-461f-a2b2-808a879b4843/how_to_maintain_proform_treadmill.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010b8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B8A 4824 bytes
SHA-256: 0e3c2b9d2141da7c05407bc810093ecaab2c06b14c907b37f486a0ce301fed22
font_01_sfnt_off00011bdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BDD 12320 bytes
SHA-256: dfeb9de8305d3a7509f5163f80b0bd5aca5730011b5f873ce6066eac98477fc9
font_02_sfnt_off00014558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14558 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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