Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1fb808fa3f90209…

MALICIOUS

PDF

46.9 KB Created: 2020-11-08 10:49:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 05ba2a51dfed02875b8b0f813b4b4442 SHA-1: 98e1032f9f08dbc16d6e1a872f096136a23514e1 SHA-256: e1fb808fa3f90209ec9531a976444ed557b9ce87823f9d774337589a285f7e0e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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://trafftec.ru/aws?keyword=weapon+codes+for+bl2+gibbed+save+editor PDF link annotation
    • https://vafumavuforowa.weebly.com/uploads/1/3/4/4/134489815/11ceaf478cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418381/normal_5f9cf20bed054.pdfIn PDF document text
    • https://tekegalesi.weebly.com/uploads/1/3/0/7/130740489/pasisamejawutuzo.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/9211a16d-f40f-49a7-bd62-dbd62039510a/11816074352.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bafcdfa1-4810-44b2-b45b-134394c51fa0/dudorolakovo.pdfIn PDF document text
    • https://redegikabave.files.wordpress.com/2020/11/29838373040.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/beb81a58-ba42-4253-8cf8-84f3a2d3e467/26681711355.pdfIn PDF document text
    • https://gumomonixita.files.wordpress.com/2020/11/gulufen.pdfIn PDF document text
    • https://rosebuzi.files.wordpress.com/2020/11/joshua_pellicer_tao_of_badass.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b169a2bf-9eae-48ee-9950-266322d77f4b/skyrim_carlotta_marriage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83dcc7c0-317e-408f-89b3-593807f07645/25636776807.pdfIn PDF document text
    • https://kubizepit.files.wordpress.com/2020/11/apocalypto_full_movie_in_tamilrocke.pdfIn PDF document text
    • https://vabavoresadi.files.wordpress.com/2020/11/debewasomogoro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7f5038e-97a0-4617-aab9-6ff7fca35c8d/gc_miner_poe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b064d574-27ea-46f8-b87c-e8730b2aeb25/zinusumafigivadegid.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_off0000735b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x735B 5668 bytes
SHA-256: 97ee4ae0ea9e9614f149c1dcb2c85ce15e4246d9d5963895af7fc2b044a25ad1
font_01_sfnt_off000086c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C3 12116 bytes
SHA-256: 3815342a61f091bbbffff52b1b0d6e300000f9a3461ee4cd57e18dfa2980122a