Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb296c78d18664c8…

MALICIOUS

PDF

75.9 KB Created: 2020-11-22 22:20:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: b7153f08d0a9b5bcc40de341aa87cc85 SHA-1: 9b3c27ff586f0cdf3c3d39bfd36e668c1659415c SHA-256: eb296c78d18664c8f98cfba1d19dd892b487395b8fbd759904a19bfb530c6486
116 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. It uses a callback-phone (TOAD) lure. 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 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://traffnew.ru/123?utm_term=dmv+columbia+mo PDF link annotation
    • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/zanomozepezazin.pdfIn PDF document text
    • https://jivenikovo.weebly.com/uploads/1/3/4/3/134308789/bemaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416923/normal_5fa4068d48f38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376621/normal_5f915a68e76d1.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/vovopafubipu/46855837977.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/multiplication_table_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18edfbfa-026b-4400-ab21-3682266e3306/zerojozotejafuxe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d985a874-8326-43b4-8de1-794044c87ad7/27699144348.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/calma_lyrics_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f444485-a294-4af6-858b-fdcaa54b23f6/11687085560.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5e6ec93-9308-429f-bfd0-5f45635daf34/xepeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c847489-b54f-412a-9341-be770c5cd43c/zimokekufirazivifekawat.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_off0000ee66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE66 4872 bytes
SHA-256: 92a2a843f62d094554ec34966806b3f64240285f657bf7ccba134fecf5ada906
font_01_sfnt_off0000fef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF2 10692 bytes
SHA-256: 26da8733ad3a5072ed64c447205e0ba961aede0905e26de111d8d974e326a7c6

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