Malicious PDF — malware analysis report

Static analysis result for SHA-256 730a87f5447569aa…

MALICIOUS

PDF

47.4 KB Created: 2020-10-04 02:45:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 3c01684f067e4123b844ccc39318eebf SHA-1: f3129231583d954c33bafd4d20496a86893db70a SHA-256: 730a87f5447569aa804fe58170de0a566edc9e5a6ea5da3b6ea9b5e29bc63463
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://ggtraff.ru/strik?keyword=ingles+inicial+pdf In PDF document text
    • https://site-1036993.mozfiles.com/files/1036993/94684262916.pdfIn PDF document text
    • https://site-1037069.mozfiles.com/files/1037069/simodafaxa.pdfIn PDF document text
    • https://site-1037175.mozfiles.com/files/1037175/76296352664.pdfIn PDF document text
    • https://site-1039127.mozfiles.com/files/1039127/metinizapotejo.pdfIn PDF document text
    • https://site-1037261.mozfiles.com/files/1037261/72425574704.pdfIn PDF document text
    • http://jekuru.nicom.com/uploads/1/3/1/4/131452959/6197428.pdfIn PDF document text
    • http://vetokopek.diaparker.com/uploads/1/3/2/7/132740328/ba14b18c414963.pdfIn PDF document text
    • http://files.christcenteredironworks.com/uploads/1/3/1/3/131383333/setuvemupo.pdfIn PDF document text
    • http://files.davidgloverproductions.com/uploads/1/3/0/7/130738892/varatib.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/9d7c27ba-edf5-4995-aae9-6e6918507ab6/wovukeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3166481-3a44-4b8d-b82d-c776c2010cce/lesepavesavinaba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41bf6f45-dafd-45c7-92f9-fa2e55179981/fimavega.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc47274e-571d-4501-bd63-5c120d97fc71/kekomoxowudubetufonof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0be50ccb-8952-4e3c-b7ea-9b8f808e60d3/nivojodedobozabojiseranew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/228a43c4-973d-45c5-8d57-de58c2c8cde0/buwusaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de4e96ef-12d0-43bc-ad59-1c2820d78b30/rozudanosufubutofewux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97e249dc-b940-45a0-a393-5c48053933c2/liberol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d632fd6-31af-4984-a3c7-02577dd86e93/34994448812.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a529aae-d873-4bb9-8117-087d05dde586/pasoriritixorofiwirez.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000078d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D3 5164 bytes
SHA-256: d1186df9ecede8712e09c01100fc8a33cc80c49ea8516a14e51677804506f088
font_01_sfnt_off00008a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A88 11112 bytes
SHA-256: 25ad96e6a7e2714df2120e7e3b6bb4b206c994db7ef014201dafcde20eec58e9

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