Malicious PDF — malware analysis report

Static analysis result for SHA-256 68b11c103d5c53e3…

MALICIOUS

PDF

39.4 KB Created: 2020-10-16 07:08:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: cdc144a9d9885e2f2b06e268f6974008 SHA-1: 20a2f289ac9bd66114f16c7d63ef0fac67957c2d SHA-256: 68b11c103d5c53e3a40a0d26f17b2c583ca345f992ea2d8e1ebd66c72e3885ab
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://gettraff.ru/123?keyword=manual+gearbox+car+parking+game+mod+apk In PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/delelides_dasexurekiwar_jajumab.pdfIn PDF document text
    • https://tabuxeniki.weebly.com/uploads/1/3/2/6/132682737/birerimar.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/jibepare-vudaramuzi-refirezagulele.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/zojefokaduve.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/bosilo_ginasesif.pdfIn PDF document text
    • https://site-1048442.mozfiles.com/files/1048442/xajobazumapitedone.pdfIn PDF document text
    • https://site-1040312.mozfiles.com/files/1040312/94680180034.pdfIn PDF document text
    • https://site-1039361.mozfiles.com/files/1039361/1552838506.pdfIn PDF document text
    • https://site-1043248.mozfiles.com/files/1043248/frayed_ends_of_sanity_tab.pdfIn PDF document text
    • https://site-1039731.mozfiles.com/files/1039731/nomidebadulu.pdfIn PDF document text
    • https://site-1040313.mozfiles.com/files/1040313/liwiviliwojaputanege.pdfIn PDF document text
    • https://site-1041859.mozfiles.com/files/1041859/44864439672.pdfIn PDF document text
    • https://site-1036730.mozfiles.com/files/1036730/gimone.pdfIn PDF document text
    • https://site-1043491.mozfiles.com/files/1043491/mevili.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0461/7119/files/guineos_en_escabeche_calorias.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_off00005acc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ACC 5492 bytes
SHA-256: 2c4a47958699ba18973d458c662ff44f5c56141ba9dc532f858ac947a038bcd9
font_01_sfnt_off00006d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5E 10380 bytes
SHA-256: 0167321b3547101e8155fb4195119645dce4443ccd1d2647df77112c7f1a3689