Malicious PDF — malware analysis report

Static analysis result for SHA-256 eec4f4d29f29212b…

MALICIOUS

PDF

87.5 KB Created: 2021-05-11 09:12:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 610aba8b67f68bcec621e09ced7d621b SHA-1: b0ce9ea0573d3b7c118b11ca2ced0652f10f26af SHA-256: eec4f4d29f29212b809666481bee314d8e865953f8ec911e43b63c79dab3d5a1
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 0.9994

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://jumiwimov.ru/strik?utm_term=dell+b1160+user+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4381082/normal_5ffddf96ef9cd.pdfIn PDF document text
    • http://lnstagramcopyrigtservice.com/363412328383sf21.pdfIn PDF document text
    • http://zhk-samolet-krasnodar.info/is_king_james_accurate0bzed.pdfIn PDF document text
    • http://natbeach.space/82454905670ib6lz.pdfIn PDF document text
    • http://tizakeguwowil.22web.org/berlin_zoo_map.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491155/normal_6028923a47a9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444644/normal_600cfb12c4b93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473419/normal_604808fcba1ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405662/normal_6030a8b7e035e.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
    • http://sezipikoguzole.epizy.com/fatozugojigefedexozes.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/max_lucado_net_worth_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/is_the_university_of_puerto_rico_a_good_school.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/pictogram_worksheets_ks2.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/18167010674.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/bebudunatafexomen.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/23600254104.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/mudugariregefuxak.pdfIn PDF document text
    • http://xutasiwewuzaf.rf.gd/alderbrook_sixth_form_facebook.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/wawivipire.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/tixuxowik.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/zinekir.pdfIn PDF document text
    • https://s3.amazonaws.com/bupesejirijejus/video_er_for_facebook_apk_pure.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AE4 4960 bytes
SHA-256: 06c15ae71509c9c6505543663a968a33a9362598b2de38f0dfe2ae7cc486b9bd
font_01_sfnt_off00011b92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B92 11412 bytes
SHA-256: 963cd79691277cc34fbf1a8994944e95a0644b2859a4084c33b4a75478fb4c4d
font_02_sfnt_off00014234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14234 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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