Malicious PDF — malware analysis report

Static analysis result for SHA-256 0394dc0e43875165…

MALICIOUS

PDF

70.0 KB Created: 2020-12-15 03:09:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5b0a8ebcacf2d5c9993a2c0e2372634f SHA-1: 97d91b1d894ac671d5bebe84c6fd18c098a6ac5a SHA-256: 0394dc0e43875165ce7356ba8e247a23e760ed532f891c272b9843cb7b61d00e
154 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 routes users through malicious redirector infrastructure. 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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://cctraff.ru/strik?utm_term=unimac+40+lb+washer+manual In PDF document text
    • https://legopojuze.weebly.com/uploads/1/3/4/3/134369078/rupupet-keloruwu-sakiresazabib-nukowika.pdfIn PDF document text
    • https://numilobes.weebly.com/uploads/1/3/4/2/134235742/a6527e770.pdfIn PDF document text
    • https://tarirubawapub.weebly.com/uploads/1/3/1/6/131606173/e241bdd64.pdfIn PDF document text
    • https://pepomujotopulog.weebly.com/uploads/1/3/4/8/134873529/1383160.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://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf502d3c02f22b9d03d82b/1606373421855/podirerodivijofij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a71b0728-29fc-41ce-9170-3504a42a6129/75705453129.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/52582641131.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c3d560f2895dc1e72903/t/5fc137afeaf37e3b64c83983/1606498223152/jo_malone_orange_blossom_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/dapekufoxiraku/minecraft_witchery_vampire_level_5.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/smule_karaoke_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdef459ee0f32b87189031/1606283078944/3769382613.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 5

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_off0000c2f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2F5 5184 bytes
SHA-256: 6b66406d3297586d29e78c661ed360912dad903a98017e0b813134d99da567d6
font_01_sfnt_off0000d468.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD468 11536 bytes
SHA-256: c8e27c16dce5cbd074ad12f8b9c5160e1bc973dba9fcec0f064372218408d56a
font_02_sfnt_off0000fb84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB84 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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