Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0aad1b6aca4ae90…

MALICIOUS

PDF

47.9 KB Created: 2020-11-05 21:14:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 68f0c19f21df8ead35aeb0fb9a93edfa SHA-1: 681918ace5e7900e0859ec7bac8f2d9cbe51e25b SHA-256: e0aad1b6aca4ae90c0d5f49a2ff0081b7ba65f5a3a006b810e4de5e0d825f3b4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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://traffset.ru/123?keyword=black+bear+cafe+carson+city+nv PDF link annotation
    • https://kaxutaxi.weebly.com/uploads/1/3/4/3/134387751/7612b19.pdfIn PDF document text
    • https://pelofaneb.weebly.com/uploads/1/3/4/2/134235527/buranoborazoxes.pdfIn PDF document text
    • https://rofowijajexer.weebly.com/uploads/1/3/4/4/134476616/filaso.pdfIn PDF document text
    • https://rosotomana.weebly.com/uploads/1/3/4/5/134585450/90bbca6.pdfIn PDF document text
    • https://votarozoxanobo.weebly.com/uploads/1/3/4/3/134315144/dc39479dd1.pdfIn PDF document text
    • https://nigiseza.weebly.com/uploads/1/3/4/4/134462574/82fd8df.pdfIn PDF document text
    • https://dokakida.weebly.com/uploads/1/3/1/3/131380589/wemetoxamudegi.pdfIn PDF document text
    • https://jutixabit.weebly.com/uploads/1/3/4/0/134017524/vatajefives-tutijefijus-dimazulakukope.pdfIn PDF document text
    • https://migabodunezo.weebly.com/uploads/1/3/4/5/134587819/zijezovepaju_boledok.pdfIn PDF document text
    • https://kutowovazamil.weebly.com/uploads/1/3/4/3/134362820/giwowo.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/b9691068-8667-43d6-ac28-dfdf4b602097/gonexaxopegosuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a724b13-c036-42eb-9796-7eb45db45523/kinnelon_theater_kinnelon_nj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14b1f9d7-aa44-453f-8dfb-2f90072d1537/massey_ferguson_1010_parts_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bcb531c-1748-4792-8674-df78cb40ae05/xigoropafesifolegejiwisar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31fe70a6-76f6-438d-9f95-43dc02db5d66/7563719717.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e775526e-431f-4b58-a703-27a99f3e0199/66501056242.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off000088c9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x88C9 24760 bytes
SHA-256: c804692436598dc0b21d9ce191ece6fba4c3e5894b15c2089078fafdb04d7402
font_00_sfnt_off00005384.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5384 5292 bytes
SHA-256: a0224d4d8cac0da3aac440d81a0fa9b4f8b4f7e8077832498b26f58b5fa23e00
font_01_sfnt_off000065a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A4 10212 bytes
SHA-256: 8f324b33df75472866a4c7f223313548c35856c2e9f3b69342adf5d13516921a

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