Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef7ad457aaed1faa…

MALICIOUS

PDF

49.9 KB Created: 2020-11-03 01:08:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 72734aac4b0e82f2392be752de2dd0f6 SHA-1: a503f321c5882dfc11141d0a6a5193591bf689d7 SHA-256: ef7ad457aaed1faab0341c1ced456a6948cfcec38a67dfad723673c00ff1c79b
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://ttraff.me/pify?keyword=trapezoid+shape+css In PDF document text
    • https://nometiru.weebly.com/uploads/1/3/4/3/134379396/gugutojoted_tigaxizozasu_jisarasipaf_rurutomidot.pdfIn PDF document text
    • https://buliduxefexefux.weebly.com/uploads/1/3/1/6/131636978/jerukawinatedoj-mumerawej-xadenunog.pdfIn PDF document text
    • https://kusebedanosude.weebly.com/uploads/1/3/1/1/131163667/zomulitonosijobalujo.pdfIn PDF document text
    • https://folarudivol.weebly.com/uploads/1/3/1/8/131871739/pitibowuxogetox.pdfIn PDF document text
    • https://gudojovevisepu.weebly.com/uploads/1/3/4/3/134314990/4088150.pdfIn PDF document text
    • https://kutozeworefo.weebly.com/uploads/1/3/4/3/134306688/9e0dd07f015e636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373517/normal_5f948b6979efb.pdfIn PDF document text
    • https://xitonodulamet.weebly.com/uploads/1/3/4/3/134307836/2ce32ab013cb.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/ritoma/data_mining_darshan.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/61433066290.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc0888ea-e18b-41ae-8c64-47d6af37c380/wevopeludexebatoteb.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/71521060980.pdfIn PDF document text
    • https://s3.amazonaws.com/tifemuma/4662406853.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1253aed9-342c-468f-85fa-4391ef93d948/what_are_tmp_files.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_off00007fd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD9 5128 bytes
SHA-256: 5b202fc76cb765953716eb5ebd9bb57e40e2e41f6d7d534676f04b9f1014367f
font_01_sfnt_off0000914c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x914C 12784 bytes
SHA-256: dff5b02171ced37ecd7e545fb9b987dcd280c1aeb08023219d488ca7c09c935e

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