Malicious PDF — malware analysis report

Static analysis result for SHA-256 22b127639d6608f4…

MALICIOUS

PDF

87.7 KB Created: 2021-01-03 11:51:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 420db246081799dbae397183e30e2e3c SHA-1: 92891c463d4fc0b7c6e448ac334059cef8aca734 SHA-256: 22b127639d6608f4caa546a71ca564579b3d5b859b51259b10072a079d67325e
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 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ggtraff.ru/123?utm_term=sapphire+secure+iptv+reddit In PDF document text
    • https://cdn-cms.f-static.net/uploads/4426815/normal_5fd3dbb5cbd49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460449/normal_5fc1f2583d1c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f86fa4a99ab8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474987/normal_5fb74bda9cbc7.pdfIn PDF document text
    • https://cdn.sqhk.co/felodunom/theHib6/fomavosunukiti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369149/normal_5f94f3d2ae860.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393759/normal_5fa3988d44600.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471719/normal_5fbd560065103.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475194/normal_5fe3e019cd333.pdfIn PDF document text
    • https://cdn.sqhk.co/mibajufaneja/WU5Fr5C/kakasofomubineleruruj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/bf47a9af-a3d9-4f47-a5dd-b38d707542fd/62327505001.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14b01c55-4b81-4769-a70d-18d3f44a51ce/772161716.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d29ef36c-84f4-427a-a0f1-3c06fc2186ad/devidiriwigevebu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05c3c484-f8fa-4cb1-8765-1e61b9cd55f7/33684875454.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebf06a82-7c08-4768-b53e-7db2696dd05c/principles_of_naval_architecture_volume_4.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f92e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF92E 4956 bytes
SHA-256: 6aae94e70120e505efdb1573681ba1ced02351a60ad1ed317771beafb96778c4
font_01_sfnt_off00010a13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A13 6672 bytes
SHA-256: 6dadb482e78dc0b894c9c84c2cae02c58f618d24960ae7a07d0e4a4e2a162f29
font_02_sfnt_off00011bf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BF0 11436 bytes
SHA-256: 6e7cd7b906b0de00af7687085ebf526cf7ad4c5031bd757dd699ebab4a729bad
font_03_sfnt_off00014311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14311 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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