Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7f0a0a6fa8db397…

MALICIOUS

PDF

42.1 KB Created: 2020-10-10 11:41:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a804c2c6018384e0450bb160f898479f SHA-1: fffa628e4abfe9f64ffcc5805e4e1640114b1a61 SHA-256: a7f0a0a6fa8db39787b49c2f085551e4c0efd24685b9fa6d94c343a5c199f9e5
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=unblocked+portal+2 In PDF document text
    • http://files.restyle-homestaging.com/uploads/1/3/1/1/131164473/5ce15ef47f8.pdfIn PDF document text
    • http://nukula.paws-ruff.com/uploads/1/3/1/0/131070289/8c6b917.pdfIn PDF document text
    • http://gegabut.badcredentials.com/uploads/1/3/0/7/130775379/matipuridabukew.pdfIn PDF document text
    • http://files.cen10seniors.com/uploads/1/3/1/0/131070459/tivotomaf-fezuk.pdfIn PDF document text
    • http://silefe.jihyunhong.com/uploads/1/3/0/8/130814687/zizeginomuxavegi.pdfIn PDF document text
    • https://site-1036680.mozfiles.com/files/1036680/xidujo.pdfIn PDF document text
    • https://site-1041688.mozfiles.com/files/1041688/71188668493.pdfIn PDF document text
    • https://site-1040238.mozfiles.com/files/1040238/fuzife.pdfIn PDF document text
    • https://site-1036775.mozfiles.com/files/1036775/kosagobuzikuxetuman.pdfIn PDF document text
    • https://site-1036939.mozfiles.com/files/1036939/selabenusazaro.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/1/0481/2957/3031/files/chapitre_4_premiere_etape_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1216/1685/files/bulisoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/5794/3206/files/dujemumepapisajubarobora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7919/5031/files/hate_my_life_what_to_do.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b868c748-f85e-4af6-a1f6-8bb3e5f31f89/burokorarofibesivenuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db4fee2a-9e34-4a36-8279-d55527bdd8b9/sumiroxixojozotoximugeko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/656baac8-1c0e-4a72-91cf-eb0031df87dc/23920673102.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1d94b25-c137-460e-a799-69cbcf1c702e/78986074683.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5a9d6dc-9655-416f-b00b-5c1821f19a51/75012757336.pdfIn PDF document text
    • https://sites.google.com/site/unblockedgamesbolich/portal-2In 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_off00006694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6694 5216 bytes
SHA-256: 7f44771f741391bcdd70077de277f229fa7a22a72d78d63002cd0998654c4611
font_01_sfnt_off00007853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7853 10380 bytes
SHA-256: e99f3bd3325e91b720690c5c317a013996e8cf47afcc2d9de6d2d143e0f4320a

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