Malicious PDF — malware analysis report

Static analysis result for SHA-256 94e4777f5d303b2f…

MALICIOUS

PDF

67.7 KB Created: 2020-12-21 16:31:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: e77efd792ff1d6cd099878e35feca994 SHA-1: b605bbdfd61da82521065f8b76dcd6bca863f723 SHA-256: 94e4777f5d303b2f8accb4cd34421e261e0ef70923ae456fe239dc6a1c47c4b0
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/square?utm_term=installer+appvn+apkpure In PDF document text
    • https://cdn-cms.f-static.net/uploads/4382976/normal_5fb4855628361.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413112/normal_5fc0804a9dc4e.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/rexogeguxosix/lopisuwijakakopem.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/mofiwupog.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/fugoxolom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7612f4b6-81f2-48d5-ab6a-23d14ad7f3b4/todafowowomigeduxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38ec7f9d-65bc-4fd3-9ede-3adc7f9d6818/soxapepudefaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0500863-86e8-470b-b336-0500f6f0ea03/bazovezeviwijekunex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ef4e395-2b36-4003-83e5-64489d12300f/baixar_bob_psiphon_2_apk_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfb4a1491241adc45935b/1606220619105/run_3_cheats.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5a1731c8c74131452292d/t/5fcfd1df5e198d16f1a0dc22/1607455200126/nalasi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73902547-71cd-45f4-8eff-bcd3fbd0e3f8/funoziv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd648577-58d0-4211-8071-891dac994496/mazepowubuwopuwosaja.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/cell_theory_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/32750095779.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_off0000cf9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF9F 4872 bytes
SHA-256: 06e0ddf58afc651c504dc36e6783ac7585ff29c80466627f6a40b015512ea245
font_01_sfnt_off0000e048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE048 10012 bytes
SHA-256: e004ba41667c4c90929558afb6570baa0ecc93f57f4b4459a87354d69c2c920e

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