Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9b22650c1212999…

MALICIOUS

PDF

52.7 KB Created: 2020-10-16 04:31:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8bc3d01b98df30b5defb42c2594ea27c SHA-1: e4f4c57f4dd4f10ef069eeb64c304b584969384c SHA-256: e9b22650c12129990e6b656ea9acc29923d037746e7265243e6e262a4665e479
184 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://cctraff.ru/pify?keyword=renault+grand+scenic+2020+owners+manual+pdf In PDF document text
    • https://site-1039852.mozfiles.com/files/1039852/15649930197.pdfIn PDF document text
    • https://site-1040600.mozfiles.com/files/1040600/24511380905.pdfIn PDF document text
    • https://site-1042010.mozfiles.com/files/1042010/71701062676.pdfIn PDF document text
    • https://site-1037881.mozfiles.com/files/1037881/24042272115.pdfIn PDF document text
    • https://site-1037026.mozfiles.com/files/1037026/dusifuwogaku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366374/normal_5f88f4c15b7e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367687/normal_5f88cc2f0581a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368740/normal_5f88d92e4e5d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366360/normal_5f873804757ed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367286/normal_5f873df82c888.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368997/normal_5f87bd6684017.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366952/normal_5f88c9a0a7b59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370286/normal_5f88c7e50d423.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/80d63d1c-fbdd-455c-81e3-fae5b4d38dbc/tukatokedamuso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/692167e3-5c4b-499d-a8a3-ce998938b5ef/67903862051.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a764fea1-c507-483f-adc1-8cead000075d/67612411799.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6ec8973-b3c2-450f-9856-d9277e93901f/389616630.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8b64f0d-6c31-44b3-a542-e24100afc1b2/61159170638.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/358bd9e9-78d1-46be-9863-96b72079034e/mapafufubapifotitokur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2859b84c-92bb-49e2-b9af-ae8628935264/46219080665.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fd7d37b-e0f2-4df2-9f66-aabc0126aa66/jeluzotukum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3588/8296/files/gikimul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3206/3383/files/4698430035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8665/2614/files/tamuneragetulonujotig.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_off00008e4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E4D 5848 bytes
SHA-256: 1130c4ee34afd18913ca10b5164efad457ac96fe7928b3c9b2c578a5733c297c
font_01_sfnt_off0000a232.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA232 10092 bytes
SHA-256: aabfe897b84834ddee247b5d54d60952985efbe8fce8412bc967a0a95fee4d20

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