Malicious PDF — malware analysis report

Static analysis result for SHA-256 006e075f14afe57f…

MALICIOUS

PDF

52.5 KB Created: 2020-09-03 03:52:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d47941dcc7da8ae095570ea08f6899a0 SHA-1: e7a2d228d327185c5dad50660e7e9edf59785baa SHA-256: 006e075f14afe57f51bdbce381e0c0a8e8a2baca09a3142729f45e2e4364741b
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.link/wix?keyword=beyblade+v+force+game++emuparadise`. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous links to other PDF files hosted on Shopify and static hosting services. The ML classifier also strongly indicated maliciousness. The primary attack pattern appears to be the distribution of malicious content or SEO manipulation via a large number of embedded links.

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 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.
  • 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://ttraff.link/wix?keyword=beyblade+v+force+game++emuparadise
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/4117/5190/files/lojipafulil.pdf
    • https://cdn.shopify.com/s/files/1/0432/2417/0664/files/tafib.pdf
    • https://cdn.shopify.com/s/files/1/0459/2553/1815/files/35276104969.pdf
    • https://cdn.shopify.com/s/files/1/0435/3051/8679/files/tunabenuzumusupibeso.pdf
    • https://static.usrfiles.com/ugd/466fa0_e49bdd75e85d4a5fade09242dd676595.pdf
    • https://static.usrfiles.com/ugd/8c0e65_a77fd81c1d714905b7a40df5403f37e1.pdf
    • https://static.usrfiles.com/ugd/48d9a1_ab30dc3792ab40b4a8210426639995d4.pdf
    • https://static.usrfiles.com/ugd/6908d7_5419dbfb1f074dc2a23c598efc32d790.pdf
    • https://static.usrfiles.com/ugd/b8c837_3bc711463b5543f9bfda39dff8fea57d.pdf
    • https://cdn.shopify.com/s/files/1/0428/6572/1503/files/xoziw.pdf
    • https://cdn.shopify.com/s/files/1/0429/2381/9164/files/ahmadu_bello_university_post_utme_form_2019.pdf
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/microsoft_excel_macros_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0434/6626/0642/files/boogiepop_light_novel_download.pdf
    • https://cdn.shopify.com/s/files/1/0445/5153/6799/files/t._j._lottie.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7362/files/lozak.pdf
    • https://cdn.shopify.com/s/files/1/0429/5163/9196/files/59125303512.pdf
    • https://cdn.shopify.com/s/files/1/0433/3918/6344/files/brian_weiss_libros_los_milagros_existen.pdf
    • https://cdn.shopify.com/s/files/1/0434/6983/2342/files/anemia_hemolitica_diagnostico_diferencial.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008b50.bin
6aa2ba0ffe31e984e52e6f36cbef671afbc9c0798d072c32f57d424522497d23
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B50 5824 bytes
font_01_sfnt_off00009f1f.bin
33915627b1ed47d100ef3f2a0327e96379809f3ee34444e262a834241ae63387
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F1F 10624 bytes