Malicious PDF — malware analysis report

Static analysis result for SHA-256 e17f57c58b254b59…

MALICIOUS

PDF

39.8 KB Created: 2020-10-19 00:51:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 841bf8ba1b34f3f1e94161436c6f065c SHA-1: a1465f26d3977ffa094571a323dac83a903dfe43 SHA-256: e17f57c58b254b591c87ccdd9f3eaf14501554a2ac7d3be04a83d412067fbb6a
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.me/123?keyword=pes+2020+konami+apkpure In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369771/normal_5f8a1c7419445.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367940/normal_5f8881d0d92ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367286/normal_5f873e3d01a03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366305/normal_5f8cb4c63de33.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378406/normal_5f8a598ccb114.pdfIn PDF document text
    • https://tegugozitofo.weebly.com/uploads/1/3/0/8/130874592/6316162.pdfIn PDF document text
    • https://gowiwoniba.weebly.com/uploads/1/3/1/8/131857243/godebisewolasexisavu.pdfIn PDF document text
    • https://xedaliwim.weebly.com/uploads/1/3/1/4/131454603/4780922.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/roruj-fegedevovelere-zexomojikazi-rewubujelem.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/pejajofedaxevaw_kozadesupuke.pdfIn PDF document text
    • https://xoraxabaxid.weebly.com/uploads/1/3/2/6/132682630/542178.pdfIn PDF document text
    • https://riragojefo.weebly.com/uploads/1/3/1/8/131857115/2745105.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/bosilo_ginasesif.pdfIn PDF document text
    • https://molisemopum.weebly.com/uploads/1/3/1/4/131437834/zenuboduxizawi-muzuzumita-vesetid-wosuzul.pdfIn PDF document text
    • https://digonowokeke.weebly.com/uploads/1/3/1/8/131856318/bdc25ee935.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/dc0fdde1-d088-4b41-8b69-ef9564fd106c/febodotafenesoru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b57da2e-c67d-471e-a208-4bf1ae4c79c6/29158160715.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43b53917-750e-489e-8705-4c1563501f67/66413060084.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21078366-1cb6-4da2-a858-2b19759848e5/nudavolobevavamenekokan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/823a3157-eb87-406f-95db-e9aee042b447/charlie_zaa_sentimientos_you_tube.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c777cb03-4a51-4395-86ec-f1be8d699e4e/74054603722.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf6e0881-baba-4cbc-a9b2-8fdda36eecfb/55024203597.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35e5996a-e5d7-4511-aa46-7b131ff87c02/baboboxaxagojesodeparivo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3ce987d-2ab2-4dd3-9dc3-8c46b83ecd18/84543281.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f30edeb9-f2b5-4824-806e-a55e23939d3c/89905232729.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53b771eb-6052-41ea-9cfd-fd77b94a21c1/6330652794.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_off00005c70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C70 5272 bytes
SHA-256: ab50bde9098b4ce0883b5b567bd432ccaa9d167b5a6e487f9860479e672c5654
font_01_sfnt_off00006e4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4A 10772 bytes
SHA-256: e0644054037d563f736af54c64c9ab31618ba6203256a4432409e648a43a9c7b