Malicious PDF — malware analysis report

Static analysis result for SHA-256 fee7957b2db295df…

MALICIOUS

PDF

322.6 KB Created: 2020-11-13 07:54:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4b5658ec6db8cccafc948b9a5e6f683a SHA-1: de289ff45e4dd2f0d2d06c0f7d6a0c4b77194655 SHA-256: fee7957b2db295dff9203ea20f024f71217706521e4a899483b670549b695d00
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 0.9958

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=bootstrap+modal+form+validation+example In PDF document text
    • https://cdn-cms.f-static.net/uploads/4423155/normal_5f9859663de46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448094/normal_5fa814341e425.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366952/normal_5f8766667b6e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421036/normal_5fa2ae3946e1a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7710583f-7229-43f1-92c4-49ca1e1a5ca3/ffxi_solo_leveling_guide_2005.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/curso_de_ingles_iniciante.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7252e2fe-2237-40bb-b262-5160a3800299/34035936142.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9bbb940-7ba5-450c-8f3f-e8a5057d3562/lesikuvavobilewapokiza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/111f24dc-7bc7-40b1-8ea7-b11c47d4ef0c/poxapifuwilakojileg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c19fd78-13df-49cf-9186-5c1f6138902b/48539144849.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2e3926e-25ad-409c-a8fe-72f625489bae/10895898389.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39d85bfd-a33f-4817-9c9d-187ed74460a6/datajam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98a492fa-10b1-44e6-bf26-95c6a6f35316/luzenoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d895920-2940-4dc4-b6ab-23a236e90fa8/numokelibubipozubukoxemuz.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0004c21f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C21F 33192 bytes
SHA-256: 68c05cf67dcfe12e39e83fa9f0951d08e655009ebe1db6d4b694d65e58e386fb
font_00_sfnt_off000484b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x484B3 5364 bytes
SHA-256: 2e754637c1ad45529a8a80fd21134810a00f7c03b5b4288425d5eaa60797c28a
font_01_sfnt_off000496ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x496EA 12752 bytes
SHA-256: abfb4577da4fd506fcd8911ac76b99cb13657018ba002974798bcfbb29966ead

Open this report in the interactive analyzer, or submit your own file for analysis.