Malicious PDF — malware analysis report

Static analysis result for SHA-256 9068e1b288bdfbc4…

MALICIOUS

PDF

43.6 KB Created: 2020-10-07 19:53:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1edb0f1a42570e1f910573db3a43e2b8 SHA-1: 64f499b8882df792c22baeb7680920c0a5f3e438 SHA-256: 9068e1b288bdfbc43182025a5b6e779a0e242439dd91793f517f4aa5a0a83b26
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://ttraff.club/pify?keyword=bakery+story+hacks+no+survey In PDF document text
    • http://files.advancedanaerobics.com/uploads/1/3/1/3/131378899/1721378.pdfIn PDF document text
    • http://files.ivymoondesigns.com/uploads/1/3/0/7/130776069/8bcf7.pdfIn PDF document text
    • http://files.partnershipforwomen.com/uploads/1/3/0/7/130775734/7937588.pdfIn PDF document text
    • http://bamij.hjcdaycamp.org/uploads/1/3/1/4/131410090/2761574.pdfIn PDF document text
    • http://livime.inspirefineartcenter.org/uploads/1/3/2/8/132814930/881dd.pdfIn PDF document text
    • https://site-1043047.mozfiles.com/files/1043047/46590818493.pdfIn PDF document text
    • https://site-1036874.mozfiles.com/files/1036874/85671579292.pdfIn PDF document text
    • https://site-1039356.mozfiles.com/files/1039356/pixoviraxibuzew.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/7c418014-d2b4-49d2-a9cd-1e61580deaa2/nubirurifelepun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e21bd862-078d-4c82-9242-87ec3adb73a3/vurazivefe.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_off00006bc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC7 5132 bytes
SHA-256: 93b233cdc23700989119fc40dc0f2c76c7411e9e8d3a0271b6818c6fc9cffff2
font_01_sfnt_off00007d49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D49 10672 bytes
SHA-256: ae683c8104ef9ad9df05b2432e10db9012904e5aaf552b10991d5206fc18747d