Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec666d0a5bfb945c…

MALICIOUS

PDF

43.9 KB Created: 2020-10-14 20:25:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 266b01b8772b3c4fd7f2279b372d55dd SHA-1: 6677d849cc43f2671b7de44b69162b13f5c2724e SHA-256: ec666d0a5bfb945c233f023b096eb47e1961b268d8596b25ca116dda0be2dd1e
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.cc/pify?keyword=overlays+pro+apk+terbaru In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365551/normal_5f86f55ab8405.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366007/normal_5f87103e24940.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_5f872f469249e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366009/normal_5f8710cc1862f.pdfIn PDF document text
    • https://site-1039565.mozfiles.com/files/1039565/64073218901.pdfIn PDF document text
    • https://site-1037138.mozfiles.com/files/1037138/1401523666.pdfIn PDF document text
    • https://site-1043519.mozfiles.com/files/1043519/92827422185.pdfIn PDF document text
    • https://site-1044154.mozfiles.com/files/1044154/95109714478.pdfIn PDF document text
    • https://site-1042867.mozfiles.com/files/1042867/5741059056.pdfIn PDF document text
    • https://site-1038468.mozfiles.com/files/1038468/degataxos.pdfIn PDF document text
    • https://site-1041672.mozfiles.com/files/1041672/liwunafelimitugarapuzina.pdfIn PDF document text
    • https://site-1039931.mozfiles.com/files/1039931/tarolederakutijozumis.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/xovaragimogerem.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/8276185f.pdfIn PDF document text
    • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/8166145.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/83905a54a030772.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/a307465c-0b10-4647-a0cc-42790e7f02f3/95246835942.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a092b17-1c8d-4390-af88-c7745c6b9219/lanofalufiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/211737ff-ea27-40bb-aac7-91eb7c2a094c/39416353805.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/605136ff-6ead-473c-8950-cead7bb6ebf5/foxufetuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2341a78e-99f7-441a-8b58-0e8245c3313d/turozixexesuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb0fa351-49b5-4e9c-acf7-475a60138f59/mifolurunobikipe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6e73c12-e1fc-4343-9fc4-0275f46afc9b/34127781837.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6205bcc5-ded3-4c88-a4c2-9d70eb06c943/rovamozefoxelegitim.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_off00006cbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBF 5204 bytes
SHA-256: 58f971beebef11768e3320fcc34c9374b76501dedf35873f81161c8205b00950
font_01_sfnt_off00007e8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8E 10736 bytes
SHA-256: 77324dba73ededcf0e94e4d7a4d1aef39fa0b29bcf0bc2bd4068da6fdc98419b