Malicious PDF — malware analysis report

Static analysis result for SHA-256 d17887ff577eecc3…

MALICIOUS

PDF

81.4 KB Created: 2021-04-02 12:42:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9885b57decc58a701314f1ca5f4c14ee SHA-1: 5b20c912913512603d7bf6051570bf14d71e221d SHA-256: d17887ff577eecc3b847937c41fd11842ba7306155de7f63906e47e6a453ffee
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 0.9961

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://golowaki.ru/award?keyword=supply+chain+management+ebook+pdf+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481852/normal_5fd34fcf5188c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408004/normal_601ede5b9468d.pdfIn PDF document text
    • http://fomaxos.22web.org/punjab_textbook_english_9th_class.pdfIn PDF document text
    • http://rezokivi.medianewsonline.com/54206077476.pdfIn PDF document text
    • http://mufosubofamar.mywebcommunity.org/18941431221.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366313/normal_5ff04810a38f4.pdfIn PDF document text
    • http://tilosag.mypressonline.com/toxicity_bioassay.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dumupa/59034773416.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/characteristics_of_informal_sector.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0639dd19-722b-4c9e-bff5-8a533d3e6d53/zamamalivimulenidepum.pdfIn PDF document text
    • http://zotodigigaki.epizy.com/36794980107.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/tejulejilowerasedudame.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/the_elements_of_user_experience_user-centered_design_for_the_web_and_beyond_download.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/james_and_the_giant_peach_rhino_symbolism.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/how_to_become_an_electrician_in_florida.pdfIn PDF document text
    • http://zebinagapovu.epizy.com/isotoner_gloves_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/19646910561.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/pitekipajexofopewogikev.pdfIn PDF document text
    • http://disejeninajexak.rf.gd/process_safety_management_system.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/3988546850.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/323244e5-fc76-4d21-bf61-ebd9755ca564/dead_to_the_world_book.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/vopumuma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a06df8d-d675-41f3-b678-dc6ebd5fbef8/past_simple_vs_past_continuous_exercises_multiple_choice.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d977ef58-f54a-4155-bc8d-5754a46ee6f8/dowel.pdfIn PDF document text
    • http://vepisesilutez.epizy.com/rowitikevupar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b56d30d5-d4a4-4fa8-ac77-22ab8d8f9179/how_to_use_canon_rebel_xti_camera.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001002a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1002A 5892 bytes
SHA-256: 5a27789b97df9082c55f9d8c9dcf75fb7ed2ef7f32a522f35d2871f15f6b90c3
font_01_sfnt_off00011425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11425 10276 bytes
SHA-256: 2518645df52a68701d512d4231494a343253ebebe7cb19d1472dfa30b1ebce1d

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