Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e21dcdf62ea0ece…

MALICIOUS

PDF

98.5 KB Created: 2020-12-17 01:34:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 11e5f4614e548ecb15698ef0e100282e SHA-1: 4bfe31a315a16e7045a8e423efac941f4cdcbefd SHA-256: 2e21dcdf62ea0ece6176b9b35e8da2a5496df5cc46a52e17002338c1006805c4
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://gettraff.ru/aws?utm_term=fintrac+reporting+obligations In 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/penefelomiju/rabivexebavubededubeneri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3315486d-a61b-4a5b-98cd-f7454e440a41/98089328592.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ec955687f52b6b8145c1/t/5fc9d16f1a258d244fdf9732/1607061871747/cats_casino_real_hit_slot_machine_videos.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/98989370744.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/jotowali.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e2740a2757459be2c9b8/t/5fc54e6a9d793648403d00c9/1606766191051/zewirekigenejesamajena.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1439a4c4-6c05-4e89-8a46-dec850a66eef/tui_hng_th_ngy_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/lakekotosuzisudew.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d67b8ef7301f8b106140/t/5fc1a461e6d49a06bbd08a54/1606526050344/we_need_you_lord_chords_and_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/psp_gold_apk_free_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc17f7ea13a450babf85411/t/5fcf5a865c8977691e3a9410/1607424651507/ruxonisuva.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/a_letter_whatsapp_status.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/android_autocompletetextview_custom_arrayadapter_example.pdfIn PDF document text
    • https://s3.amazonaws.com/fokena/jidusu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcecadc7d3f043f976af203/t/5fd60d3d5488895576a1e34e/1607863614526/employment_authorization_form_2019.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2cb63bf71053ccb1c5e2b/t/5fc630103c6ccf69f331f68f/1606823959019/babal.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_off0001376c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1376C 4984 bytes
SHA-256: b344df313a50fbc066aea0e7181216011d39e344d7f72fb195efb200ae082003
font_01_sfnt_off0001485b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1485B 11540 bytes
SHA-256: 3b582f02abcadf147f756159f99a7142a1606464fa106ef97f017fe7d36b977c
font_02_sfnt_off00016e77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16E77 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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