Malicious PDF — malware analysis report

Static analysis result for SHA-256 205264100edecc9a…

MALICIOUS

PDF

41.2 KB Created: 2020-11-06 13:32:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1fde15d040341bc9b3e455c25b89a41b SHA-1: 412ce555a8b774f30a9ababbde2f12dbd1cc581a SHA-256: 205264100edecc9a6d36730fae7b8534a95f3cbd30b82d4751955c127bca1333
124 Risk Score

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 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://traffmen.ru/strik?keyword=brighton+high+school+football+schedule+2019 In PDF document text
    • https://foderojev.weebly.com/uploads/1/3/4/0/134041652/6526275.pdfIn PDF document text
    • https://mizitixas.weebly.com/uploads/1/3/4/5/134589849/6530017.pdfIn PDF document text
    • https://gasipepimajut.weebly.com/uploads/1/3/4/3/134367512/4541179.pdfIn PDF document text
    • https://zogerosolubelu.weebly.com/uploads/1/3/4/5/134576434/166866.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378856/normal_5fa1252ccce61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428043/normal_5fa23ff92a29f.pdfIn PDF document text
    • https://dawerofe.weebly.com/uploads/1/3/4/3/134361643/lazufokelizozegisiru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368505/normal_5f9080ebf1dc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365628/normal_5f9cbed8818a7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sivanira/1867541554.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/ego-c_twist_blinking.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/development_economics_textbook.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/klein_isd_board_election_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/destiny_requires_attunement_to_equip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87af94fb-0178-4a7e-b49b-606451d9b044/lofekivozuzekazikebot.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/73757568300.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_off0000605d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605D 5956 bytes
SHA-256: 9071515b3ca1e041e0287b5e75070be219c40488b3a2577c187c12c6ef374793
font_01_sfnt_off000074a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A2 10332 bytes
SHA-256: f3cc52da40e0dd5e031809f620fd1e1e7122ca2b3a934227dfe1d09f55029e56