Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5d6954a6c519b3a…

MALICIOUS

PDF

53.7 KB Created: 2020-10-15 02:30:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 45ed1dc549c37d42e4976dcc798d13d4 SHA-1: e2d28fe436149d3cca5221d334d06876f87f1e11 SHA-256: f5d6954a6c519b3ad4cec29f56494f30a73c25d6fe43f46e548fd70b021e13a3
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://ttraff.club/pify?keyword=drishti+ias+mppsc+mains+notes+pdf In PDF document text
    • https://rolosakuzorega.weebly.com/uploads/1/3/1/3/131379035/tetokesajemidop.pdfIn PDF document text
    • https://zuwumepegowivos.weebly.com/uploads/1/3/1/0/131069935/2642225.pdfIn PDF document text
    • https://punadojum.weebly.com/uploads/1/3/2/6/132680976/gowonavigevezik.pdfIn PDF document text
    • https://fadusoga.weebly.com/uploads/1/3/0/7/130739873/3ce5e1f3fb8.pdfIn PDF document text
    • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/befofobojixubut.pdfIn PDF document text
    • https://vewutaniwem.weebly.com/uploads/1/3/0/8/130873717/6eeed2758a.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/e9ff54.pdfIn PDF document text
    • https://pevugubak.weebly.com/uploads/1/3/2/7/132740457/papimi-nefewekapojerof-vorur.pdfIn PDF document text
    • https://giwakatunu.weebly.com/uploads/1/3/1/4/131437107/fitonumijebarovepiso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367952/normal_5f877646cb0dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366031/normal_5f86f5427ebd0.pdfIn PDF document text
    • https://site-1037829.mozfiles.com/files/1037829/juzumam.pdfIn PDF document text
    • https://site-1044184.mozfiles.com/files/1044184/jazuwil.pdfIn PDF document text
    • https://site-1038561.mozfiles.com/files/1038561/toworuwilijonuboputox.pdfIn PDF document text
    • https://site-1038961.mozfiles.com/files/1038961/54811121722.pdfIn PDF document text
    • https://site-1037082.mozfiles.com/files/1037082/29599630782.pdfIn PDF document text
    • https://ruwopevod.weebly.com/uploads/1/3/1/3/131397973/nafegemezaf.pdfIn PDF document text
    • https://fixabugodorev.weebly.com/uploads/1/3/1/8/131856934/2060410.pdfIn PDF document text
    • https://seririgikum.weebly.com/uploads/1/3/0/7/130739922/4c1794a6a4b7.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/4102594.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/metor.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/d96ddb407408.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/2122744.pdfIn PDF document text
    • https://penulikadima.weebly.com/uploads/1/3/1/4/131482887/2734f5d9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn 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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D2 5360 bytes
SHA-256: ee276dc25215253cae4948c6d73ef8bd6e599cd84f554458040b46d8e51af10a
font_01_sfnt_off00007bde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BDE 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off00008741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8741 10596 bytes
SHA-256: afff1fadf3b7d060a5b7e77db3a50717f21a824f79b11372b0cbf308b99b98d7
font_03_sfnt_off0000ab7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB7E 7596 bytes
SHA-256: 6a8dc2f2bf7c2654b377e29e5c133afde6f7d395c0b10825fdf8770ad33e8e8c