Malicious PDF — malware analysis report

Static analysis result for SHA-256 25e7d9777b5e930b…

MALICIOUS

PDF

72.8 KB Created: 2021-02-28 16:49:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 98eca8665653612bd5146a17b6387d4d SHA-1: a804a3d05f773f252eb4c34798a323bfe37c5499 SHA-256: 25e7d9777b5e930b1f5d7a45194b05ef57b89d3e970b6c3dfc0888547e0f64f4
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://lozipotod.ru/award?keyword=pretty+little+liars+box+set+books+1+to+4 PDF link annotation
    • https://cdn.sqhk.co/kinemefuwa/Bididjh/vesta_vesta_sw_game.pdfIn PDF document text
    • https://mefutugotipefij.weebly.com/uploads/1/3/5/3/135304762/momawugizujel-tijebaxuvek-rinajaru.pdfIn PDF document text
    • http://kanaxade.mygamesonline.org/medical_device_quality_management_system_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407304/normal_601dc0043fdaa.pdfIn PDF document text
    • https://sidugavumudoriz.weebly.com/uploads/1/3/4/9/134902227/73ae63c3fbbfa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470961/normal_5fe674633d027.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479905/normal_602b96781c93d.pdfIn PDF document text
    • https://cdn.sqhk.co/marebilan/giAOjgv/regavepegetenatevoru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413375/normal_5fc755b6db45d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388174/normal_5fedb18af1c8b.pdfIn PDF document text
    • https://gitapizi.weebly.com/uploads/1/3/2/6/132683136/2076251.pdfIn PDF document text
    • http://zunuruxeguxifi.mygamesonline.org/how_to_use_the_adt_remote.pdfIn PDF document text
    • http://baliferifopiz.mypressonline.com/pominu.pdfIn PDF document text
    • http://ruguwafe.scienceontheweb.net/62137857714.pdfIn PDF document text
    • http://gadatoreneperil.mygamesonline.org/how_much_is_hp_stream_11_in_nigeria.pdfIn PDF document text
    • https://bubigijezifaju.weebly.com/uploads/1/3/1/3/131380429/4954916.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401714/normal_60159cd7045f3.pdfIn PDF document text
    • https://cdn.sqhk.co/noloxunipe/ichgqij/heap_space_tomcat_8.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/norozovijalu/muluwatopuk.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/80538185967.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_off0000dfe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE1 5196 bytes
SHA-256: 87373760430b1b4a55c4174e0d3a098e05a3b7ce0e6689634c0a3cc0bae00f3b
font_01_sfnt_off0000f1ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AE 10660 bytes
SHA-256: cd0ad5b8a1db77719f1fc6543a32b9ee29e81ad5b14afa1c88acedf3348e5952