Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aad59d83c5649db…

MALICIOUS

PDF

40.5 KB Created: 2020-10-11 04:42:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8d7e454a636159f4e0207cd1a04a0869 SHA-1: 7c0c8825dae8e14778f0bcbfa9fde6e08480ab5e SHA-256: 8aad59d83c5649dbdbefb0b96ae6fdc2661b28e086d251a5458875151d193822
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://ttraff.club/pify?keyword=bit+heroes+hack+apk In PDF document text
    • http://files.powderspringses.com/uploads/1/3/0/8/130873718/a5c6f5bc27c.pdfIn PDF document text
    • http://linon.chillicothemudcats.com/uploads/1/3/0/7/130739347/8064800.pdfIn PDF document text
    • http://nuwizo.meganstrawn.com/uploads/1/3/0/7/130775050/be85202f6b62.pdfIn PDF document text
    • http://feferu.wendybatt.com/uploads/1/3/0/7/130739595/2581889.pdfIn PDF document text
    • https://site-1036751.mozfiles.com/files/1036751/89446698918.pdfIn PDF document text
    • https://site-1038401.mozfiles.com/files/1038401/83018123694.pdfIn PDF document text
    • https://site-1038759.mozfiles.com/files/1038759/zuxudazugumefidoxisukamu.pdfIn PDF document text
    • https://site-1039174.mozfiles.com/files/1039174/tonogesukonivowumitagizim.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/77cc699d-e3c0-4a9e-9956-51753f78bb67/totojeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b9ac737-9a42-4e06-b6c9-7216c63f4e78/govajalaredal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db2cc688-3050-4acc-a347-29aba2301e2b/28072376528.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54e4c9b4-ff81-48c1-a897-6bc7f2fed52c/9686084921.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f0cdf7c-d15d-4fa7-9ef7-d739736fdfe9/vojadivoxitefebozabesuxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b64d188e-11b0-45a5-9cc9-00730c44af41/mogugo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00d4aa8d-2649-4d3f-91f6-b89fdc18e94c/wadizebowijanimidizoti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/620eb69d-7036-406c-85b1-ccccc5f834a7/69770480188.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e117f0dd-777e-491e-af7e-df26aba14f87/luzejowanosiraxazu.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_off00006176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6176 5100 bytes
SHA-256: 8ac19c8da83d1e648a77fe53fc7a862c33bf51cd0f50bda5051f52b1c62b030a
font_01_sfnt_off000072cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72CC 10200 bytes
SHA-256: cd5811db3e2026667c008c8167033464481c75ad41307df1feed10099687615e

Open this report in the interactive analyzer, or submit your own file for analysis.