Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab50829a8446ce0e…

MALICIOUS

PDF

48.0 KB Created: 2020-10-15 21:04:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: beb554c6028c1563b810246eedde0152 SHA-1: 5c3768a5a7fd717fb0cd0599e42b71f7a0c010cb SHA-256: ab50829a8446ce0e7717f19c9a0b191e53dbd1b7c7416af2e7139689e928b01f
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=definitions+of+communication+with+references+pdf In PDF document text
    • https://site-1040798.mozfiles.com/files/1040798/nugororeg.pdfIn PDF document text
    • https://site-1043090.mozfiles.com/files/1043090/29047401284.pdfIn PDF document text
    • https://site-1039957.mozfiles.com/files/1039957/23998999318.pdfIn PDF document text
    • https://site-1044024.mozfiles.com/files/1044024/zetukotodawegunozabo.pdfIn PDF document text
    • https://site-1042196.mozfiles.com/files/1042196/zodinipan.pdfIn PDF document text
    • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/9325577.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1109957.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/44d87feaf8ee.pdfIn PDF document text
    • https://jedarixires.weebly.com/uploads/1/3/0/9/130969076/pofonan_zaredaz_nilevowezisa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365552/normal_5f873fef1eb05.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f86fed5b3038.pdfIn PDF document text
    • https://site-1039828.mozfiles.com/files/1039828/76114282609.pdfIn PDF document text
    • https://site-1048488.mozfiles.com/files/1048488/savalaxolexepubi.pdfIn PDF document text
    • https://site-1044108.mozfiles.com/files/1044108/6499353321.pdfIn PDF document text
    • https://site-1039754.mozfiles.com/files/1039754/43522668879.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366395/normal_5f8757b0afe75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369783/normal_5f8889284c9c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366313/normal_5f8727c7ddab8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365547/normal_5f86f8b762a36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367294/normal_5f888d583f60b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/bcec92d7-fd0c-47b7-8ae9-d79fcad029f8/10343732960.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82478d19-497b-49d5-bea4-90207fb94c34/90765861715.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/009c7eba-1dd2-4ef4-a381-d34507bc2d5b/xoborezarojuwekug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4dff6e50-9336-4154-abb5-88667d3d5fcc/torifefokovasufixi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d4e3465-332f-4594-bdc1-6fb1b73008d4/21789265857.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000703f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x703F 5336 bytes
SHA-256: 6e4750d0295ec51b94ccb8a6994c51434ef69a93639ac32c803c07b77984de7d
font_01_sfnt_off0000824e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x824E 9852 bytes
SHA-256: 2ac5dd6220e90e6c3c99995c5a54ed6dee522417995283cc9c99363d24ae2fb1
font_02_sfnt_off0000a400.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA400 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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