Malicious PDF — malware analysis report

Static analysis result for SHA-256 17708523b76e6b36…

MALICIOUS

PDF

85.4 KB Created: 2021-02-15 19:30:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9af035edcfe852c7edc2586421897062 SHA-1: 2334081bbdfe85a68390f92b9e5b20ef7141f961 SHA-256: 17708523b76e6b36a3bdfc7a8fc8c2625973aacd7071e91dde0d7f67d5973592
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 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/123?utm_term=can+you+rekey+a+schlage+smart+lock PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4410002/normal_60200e151be3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393197/normal_6028fde14c6e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386081/normal_5fd805d2aa07c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371247/normal_6022f76805355.pdfIn PDF document text
    • https://rigawolazi.weebly.com/uploads/1/3/4/7/134710531/ruziropawakimab-gatela.pdfIn PDF document text
    • http://kimujitotam.22web.org/37976720169.pdfIn PDF document text
    • http://kozizukexepuf.22web.org/66474833735.pdfIn PDF document text
    • https://gedexezesojefib.weebly.com/uploads/1/3/4/6/134666283/kuvazopunaxojeguwi.pdfIn PDF document text
    • https://sibomimotilelib.weebly.com/uploads/1/3/4/2/134235458/limawivonafap.pdfIn PDF document text
    • http://zarozunaxa.iblogger.org/58847536101.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424376/normal_601f1cf359759.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485015/normal_6006bb81c322c.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://s3.amazonaws.com/vaxebisapesi/agitation_and_mixing_lab_report.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/roviwitavej.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/buddha_hi_buddha_hai_song_pagalworld.pdfIn PDF document text
    • http://xixitokap.rf.gd/sisefukekuletusiwijodaz.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/fevobepesejejedofolijatis.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/cascading_style_sheets_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/56444157912.pdfIn PDF document text
    • http://nikonujilo.epizy.com/iis_application_request_routing_arr.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/zinibumorun.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_off00010387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10387 5236 bytes
SHA-256: ab8f2ec1badade620dd94612875354bd0ec33291128e2e2fd014376e686a4c1d
font_01_sfnt_off00011543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11543 10708 bytes
SHA-256: 3d966956093b40e2a2d7927e9c4b387a5731751e4db51555be128665f2676353
font_02_sfnt_off000139e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139E1 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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