Malicious PDF — malware analysis report

Static analysis result for SHA-256 60a2d5c8b77ba4c2…

MALICIOUS

PDF

71.3 KB Created: 2020-11-26 03:13:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 16b1306da8b354f82b57ba21b3ac4849 SHA-1: d82a6cc3e2294fdc6197d9d632773cf7134ccc51 SHA-256: 60a2d5c8b77ba4c2c8e389c056f9a4c05fd51ae24635ed8df8d261a67ff29325
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/strik?utm_term=how+to+get+prior+year+agi In PDF document text
    • https://cdn-cms.f-static.net/uploads/4443824/normal_5fa36bef86863.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417405/normal_5fa5b72526c14.pdfIn PDF document text
    • https://kakowafalajoji.weebly.com/uploads/1/3/4/4/134455686/eb09f8c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384468/normal_5f951563503e4.pdfIn PDF document text
    • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/7099023.pdfIn 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://uploads.strikinglycdn.com/files/9174b8dc-f4a1-426f-8c7f-8b616b1ec6c8/nixanosinowemadif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a41e59b-390c-4ac6-bd01-374e4a0bdf5f/usb_2.0_crw_driver_windows_7_dell.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/curse_xx_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68f88031-5c2d-4337-8d16-dd12c51509e0/thomas_and_the_magic_railroad_vhs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5cc0460-bc52-4c19-833f-50b646e23b13/20825210475.pdfIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/21827217579.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_off0000ccd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCD0 4612 bytes
SHA-256: 54dc0f7497582a7a7f2f5d29924c1f7dda1c70c3eb8a22d5d000456fe8a18c23
font_01_sfnt_off0000dcaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCAA 11088 bytes
SHA-256: 1461e9259a69366a8a3127332e7931324dce198204008513d6e11da85777de9b
font_02_sfnt_off0001025a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1025A 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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