Malicious PDF — malware analysis report

Static analysis result for SHA-256 aff1d4fe082724ec…

MALICIOUS

PDF

77.5 KB Created: 2021-04-25 03:15:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9e3847ba886429ca254d3181a23a9062 SHA-1: c7676598f721a1044037b34fdd9ccff71210a662 SHA-256: aff1d4fe082724ec616b983f7439d5986c1d861c7c59ba66c3292381d9f2e80f
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 0.9997

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://bologen.ru/strik?utm_term=ley+de+t%25C3%25ADtulos+y+operaciones+de+cr%25C3%25A9dito+resumen PDF link annotation
    • https://cdn.sqhk.co/nivabetaz/iAoL8vr/26708989305.pdfIn PDF document text
    • https://cdn.sqhk.co/wesaduleb/jfckc9D/fluid_live_wallpaper_iphone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412165/normal_6052e2f2f0b3a.pdfIn PDF document text
    • https://cdn.sqhk.co/pesasotiro/gjBhdih/grist_mill_cafe_menu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477910/normal_605b6c680311a.pdfIn PDF document text
    • https://cdn.sqhk.co/kekotenonaxu/jOkhcgf/mydigi-_fi_smart_smartphones.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413454/normal_5fdbe3fc144a8.pdfIn PDF document text
    • https://cdn.sqhk.co/rivinodati/cqiablj/popexifiwobixutuvamidig.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zelimuperuna.rf.gd/41867167633.pdfIn PDF document text
    • http://godubaxedija.rf.gd/rafuvidosuloponuto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed28ed5b-3072-4ff8-a38d-142cf0cb4346/samsung_rf263beaesr_aa_parts_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed998042-d4da-4016-921d-198ad853c845/polaris_3900_sport_p39_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8855d4d3-f2c0-443e-8d23-2533416089ca/como_tirar_ar_da_tubulao_de_gua_quente.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb1d9f3a-f3f3-402c-8d44-1e5577f43847/que_dia_es_feriado_en_septiembre_2019.pdfIn PDF document text
    • http://bagirisuteladog.rf.gd/49400165385.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90404c83-20b2-4cf9-bdbe-ea57b9573cec/vozasa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b960c349-88e5-483b-b294-1426f87016c3/persepolis_comic_strip.pdfIn PDF document text
    • http://gokobuvutojo.epizy.com/47294691932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/147971c3-3bc1-42ba-9864-62c3c0ecda4c/dadowonetoxofanedufekes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be7dbde6-fed7-4143-b25a-1d0ca30d92a3/danepimalixadabef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c5201cb-8f47-4180-946b-f87ecee46409/international_law_definition_in_hindi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC35 5456 bytes
SHA-256: dd437b05a1e71b1ff1067ef7931090f262cf1d001f0086308fef6eb09783db5c
font_01_sfnt_off0000fe71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE71 12948 bytes
SHA-256: f162484b86ed95e230d8049eb34bf022e9ccb6052362bc2265730be6b55143bf

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