Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0d814ebdebee3a8…

MALICIOUS

PDF

61.6 KB Created: 2020-10-14 06:42:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 47b8b7d6b93cd4ae7a8b8bab6e09111b SHA-1: 194fb05aa100a6156103fa961ddb03cb94363664 SHA-256: e0d814ebdebee3a81d407f6d052157159e5fa4b7e4447567f177187242f09902
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/strik?keyword=rome+total+war+barbarian+invasion+apk+full In PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/lanadez.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/kezupukono.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/debizikirapanas.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/wewebunovemerifabo.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1109957.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/safado-fodidunixoso.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/6431815.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/nukexifepejisox.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/vaxukekiwurefebe.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/dfa71c21-beb7-4810-a3a7-8316ecb786b9/bobada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73e0bf76-72d6-48c7-bda4-2458437f3b04/mibosusozuzolewezubiti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59ea43c0-0b49-4922-949d-253523d10689/94437305286.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e22f397f-9799-4e84-8517-2b913a6d4f78/guvip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07014bf5-1524-4f39-b4a5-26ac3a34156b/dexadozomegib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27a12da0-cf6c-473e-910e-6e843537e226/21253148554.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6eba96b1-39e4-431b-97f8-f7399b14d78f/dupubenitimowadanaforiba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5061b53b-9e12-4f34-8362-ca5ff5aa8f74/5921507806.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off0000cb76.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xCB76 18460 bytes
SHA-256: 546f783b1ffb6637dd8c073417f1c0c472a6dcc0bd5bcd91a981bdeeee4c6142
font_00_sfnt_off000075b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B0 7500 bytes
SHA-256: 404a4ceff96edd9004a24d761f261700891b258d393f00b379295f120733600c
font_01_sfnt_off00008ee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EE2 5408 bytes
SHA-256: b3e3e1728fb2c41e5d141a9a6556199260157a382b9e1612a178d7424427e9ae
font_02_sfnt_off0000a14c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA14C 13440 bytes
SHA-256: c96f79172974d12d11f1fc53a09e3e19a8ec54141a7aad026da8f0b9c4e74d55

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