Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9439176cc94ce6b…

MALICIOUS

PDF

71.9 KB Created: 2021-01-26 08:42:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: dff3c82af2569cc2b269dd9141d83f33 SHA-1: 08047c9a25e96a3105ded8f6a9607cbf448302c4 SHA-256: d9439176cc94ce6b0cf4844cdeac131474feabcbec8b9ea5e961fde9c043656a
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 0.9993

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://jottigo.ru/123?utm_term=school+closings+ri+turn+to+10 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4489716/normal_5fef10ac36ea4.pdfIn PDF document text
    • http://vewazanujuwa.22web.org/73896511259.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420476/normal_5fedf55687c62.pdfIn PDF document text
    • https://cdn.sqhk.co/jepivitixiwo/yijHij9/nabevut.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369189/normal_5ff26bbfb4117.pdfIn PDF document text
    • https://cdn.sqhk.co/sevalaturi/fkmPSoJ/fiji_sunshine_guava-_tini.pdfIn PDF document text
    • https://cdn.sqhk.co/satidaruxami/e0udrRS/cake_recipe_chocolate_easy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375203/normal_5fe901aacc3fa.pdfIn PDF document text
    • https://cdn.sqhk.co/votexeruwiti/jfGvRGq/digikisujojagujutujidopan.pdfIn PDF document text
    • https://cdn.sqhk.co/mowasikuso/gjaiaid/callaway_hex_golf_balls_costco.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471971/normal_5ff501d4ac68a.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/ic9ghhj/90179159931.pdfIn PDF document text
    • https://cdn.sqhk.co/zetanitanedo/xvhbhgg/podezixuzufopulipo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376099/normal_5febea2578f1d.pdfIn PDF document text
    • https://cdn.sqhk.co/kapidibewomu/agegjjg/miraculous_ladybug_flashlight.pdfIn PDF document text
    • https://cdn.sqhk.co/migazajigum/4wighix/virtual_dj_8_sound_effects_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/rarirawibowo/cgc9ggF/nedipojegatuvepenodirol.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418167/normal_5fe1fee20ff19.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477400/normal_5ff33d9a9304a.pdfIn PDF document text
    • https://cdn.sqhk.co/kepilujofeje/6ibjciq/60885555514.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rubijisezet.epizy.com/vukepomuwekubeni.pdfIn PDF document text
    • http://fazomexaboru.rf.gd/shotcut_video_editor_windows_10.pdfIn PDF document text
    • http://vobisobopimab.epizy.com/work_cited_mla_format_word_2016.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_off0000db26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB26 5148 bytes
SHA-256: 816e129d1915e484a0b33ad2d6cbe57d6d025b3daf645ec654953f88db05db4a
font_01_sfnt_off0000ecac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECAC 10956 bytes
SHA-256: 1630eee14d2877cfed57c094627e28d9abe34883b1175cb02ac59bb994717df8

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