Malicious PDF — malware analysis report

Static analysis result for SHA-256 7146c7b1fde54ee5…

MALICIOUS

PDF

41.4 KB Created: 2020-11-05 05:14:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 1a1bcee10feedaded8c146863aefb480 SHA-1: c422a8537cab86a757f85a2aeb89cfcb938947ef SHA-256: 7146c7b1fde54ee53ffc70c3048a384ab7293049f81ae9791806d7dbd51ca799
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.cc/123?keyword=order+of+the+phoenix+pdf+free In PDF document text
    • https://xukanimuwuvam.weebly.com/uploads/1/3/2/6/132696198/6206643.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416934/normal_5f95365c6d3fd.pdfIn PDF document text
    • https://ximazula.weebly.com/uploads/1/3/0/7/130738777/ad45c4622025.pdfIn PDF document text
    • https://lirebuzufosol.weebly.com/uploads/1/3/1/4/131453665/medibizironode.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421957/normal_5f9776b58941f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405197/normal_5f94c15dcfa70.pdfIn PDF document text
    • https://pitamiled.weebly.com/uploads/1/3/4/0/134098016/wodekot-letofibejugo-xetexupe-kawegikexison.pdfIn PDF document text
    • https://wefamojugibe.weebly.com/uploads/1/3/1/1/131164519/wefikipuzufawaseg.pdfIn PDF document text
    • https://sefedajexoxoj.weebly.com/uploads/1/3/4/4/134479396/fexojitaxagidal_voraso_dumufajepeveb.pdfIn PDF document text
    • https://jaxirifaru.weebly.com/uploads/1/3/4/5/134500995/rivimuna.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/busutafitufe/terrestrial_photogrammetry_surveying.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/31656985694.pdfIn PDF document text
    • https://s3.amazonaws.com/susopuzupure/jusavajeluwizogesez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a297e80-6707-423d-8cc3-e42d94f51cb0/tisufibafaliranatafiwise.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/things_fall_apart_chapter_9_13_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/passport_photo_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/234abf76-a0e3-46c4-99e3-34185323466b/misedetokupedebuvesujefu.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_off0000650d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x650D 4804 bytes
SHA-256: a606a0ec2a7c8f8e5d164909c652257f3a3127607c5672851e9e927efaa641c1
font_01_sfnt_off00007569.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7569 10416 bytes
SHA-256: eadcd20e4100c332fe5f16c4b08d06b8f02bc339189a5a770cbe4633846aa4e1