Malicious PDF — malware analysis report

Static analysis result for SHA-256 f69ce3c8e7a9afb4…

MALICIOUS

PDF

68.0 KB Created: 2020-10-09 01:58:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 5ff07bd5f9234346e4caa9556dbddd73 SHA-1: e67e5e8ab0ca7d8a367c1bad0f7714db79fccfb3 SHA-256: f69ce3c8e7a9afb423fb2e38bf3f268bdb29b2226787349f68f87d2b22a6be74
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/pify?keyword=sample+letter+to+beneficiaries+of+trust In PDF document text
    • http://vukoso.langleycarpetcleaner.com/uploads/1/3/2/8/132814977/6c01b67b2c71f1.pdfIn PDF document text
    • http://files.angelavossmeyer.com/uploads/1/3/1/6/131606540/9093649.pdfIn PDF document text
    • http://files.thegutguys.com/uploads/1/3/1/3/131380754/lenun_vefozuvetuw.pdfIn PDF document text
    • http://dokuzad.lagoonpondrealty.com/uploads/1/3/1/6/131607062/dipero.pdfIn PDF document text
    • http://kovuki.lucky13salon.com/uploads/1/3/2/3/132303035/d9a28ed17.pdfIn PDF document text
    • https://site-1039280.mozfiles.com/files/1039280/fipejo.pdfIn PDF document text
    • https://site-1039133.mozfiles.com/files/1039133/49156867423.pdfIn PDF document text
    • https://site-1040097.mozfiles.com/files/1040097/31776384204.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/c004e82f-4d78-429f-9074-9a9ba9c34672/jamewawamom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d325b4ba-cf09-407e-ae3c-8b2679ea2f05/wukabuzis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e68377c-e9f4-466d-8a9c-f4c84bcb6515/92231870136.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e7870a8-3c98-4d69-a9c1-129cfd5cf4d4/37495243803.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_off0000c21a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC21A 2828 bytes
SHA-256: b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a
font_01_sfnt_off0000cc15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC15 5404 bytes
SHA-256: 417573aa85faf5ac7cf3d96a25f2609a7b0662eddce23582226be2b7da894846
font_02_sfnt_off0000de56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE56 10156 bytes
SHA-256: af43b3e258d998adeb127b1dc89710f4cad683e780b51e349af660d0c25f565e