Malicious PDF — malware analysis report

Static analysis result for SHA-256 878a5e7c81adda8b…

MALICIOUS

PDF

209.9 KB Created: 2020-11-18 16:49:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 82e922094b66855a273ba8d76079282d SHA-1: 10d1ed93ea767b58226ee5ed962a49d49b50d776 SHA-256: 878a5e7c81adda8b04a9b4dc9d25a65a08202ed108192b63d218095ae64ce7d1
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a password-protected-archive lure. 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 0.9952

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://trafficel.ru/123?utm_term=simple+weapons+5e+wikidot PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366381/normal_5f966bca5dd6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453328/normal_5fa2266381c46.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/wobiz_fewupaxun_wuguwori.pdfIn PDF document text
    • https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/31333f6e594a.pdfIn PDF document text
    • https://xizuxukavawot.weebly.com/uploads/1/3/4/3/134376570/dobubogonisa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc6e46b3-26b0-42fa-871f-c55fdbd99dcb/pufudovafuzarapabe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/277b7931-f483-44aa-a245-8d4bd9cd590f/sumas_restas_multiplicaciones_y_divisiones_para_imprimir_de_4_de_primaria.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/598dd586-aefa-4bb7-9b5d-b6136bf06ac0/sutetokiri.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/catalogo_hinode_ciclo_3_2019_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a938bb2d-a978-44d0-a830-0c20411d9427/junotuxilumepodebifewiwu.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

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_off0002ede9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EDE9 5392 bytes
SHA-256: 8b5194c7c9122c3361b6f43f6252a9a30c0295935259b584c316d15adb632d0a
font_01_sfnt_off00030044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30044 10788 bytes
SHA-256: 39130891d88141efc450b300339ee0b965254dc39f1b3e0d5622a8ac069136ec
font_02_sfnt_off0003253d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3253D 16060 bytes
SHA-256: 2173a1880e9f774f759393e7d0d28dda91d04d8a3eae6bea41b822770b343b90

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