Malicious PDF — malware analysis report

Static analysis result for SHA-256 139b6ed00983ec62…

MALICIOUS

PDF

66.6 KB Created: 2020-11-08 12:55:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: 319d667ce0984f16e6fdb56bf1c659f1 SHA-1: 0db083857a4a0b59542fd0666a47c0e073ba11f7 SHA-256: 139b6ed00983ec62c7157c9ccb381a9b8efd46354685404171f5c32ed05e23d5
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=sam+x+dean+lemon+fanfiction PDF link annotation
    • https://finolija.weebly.com/uploads/1/3/4/6/134625313/496300.pdfIn PDF document text
    • https://xonunate.weebly.com/uploads/1/3/4/4/134478107/5812102.pdfIn PDF document text
    • https://dowamiwimeguv.weebly.com/uploads/1/3/0/7/130775936/soxeranikija.pdfIn PDF document text
    • https://tevumusavobe.weebly.com/uploads/1/3/4/1/134108657/litudiwim.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/f651f9f3-77bb-4e07-a072-169b20daf80c/33140871529.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/497ab50b-cae6-4476-a275-0245ffa9b44f/monamudavegorif.pdfIn PDF document text
    • https://zopovamodutu.files.wordpress.com/2020/11/9534967896.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30746ece-ee2a-4287-991a-767e4dd604f1/non_evaluative_feedback.pdfIn PDF document text
    • https://rezekine.files.wordpress.com/2020/11/tatojesanawav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b3c1311-1f1d-4118-861e-07cb6aefe5ae/61623058847.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/017f95e0-734d-4f2b-a238-42ba0c02acd7/78826752114.pdfIn PDF document text
    • https://sudufafi.files.wordpress.com/2020/11/wuvixalojekurimaluxi.pdfIn PDF document text
    • https://siwereja.files.wordpress.com/2020/11/famuwofezonuxiva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12651622-ada2-4422-89b3-8dd5d639cf1a/73967138236.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8a640d2-1510-4e04-9b64-c598daf02049/39464914302.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000c985.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC985 29844 bytes
SHA-256: 49c791ef4521cb09e5a301a4fe2594085a06240bfc9bf0cdd90dd9c6f61184a1
font_00_sfnt_off000090b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90B2 5064 bytes
SHA-256: 86a7b06b732a91128c6ae2df126e631e2556250541eea3b48c8dfce5bb9c0542
font_01_sfnt_off0000a1e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1E9 12076 bytes
SHA-256: e511f47c3998dd64207448e0331dbab5f5f96d69351e51a73dc55e39cdef56b6

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