Malicious PDF — malware analysis report

Static analysis result for SHA-256 697bfad71f45bc89…

MALICIOUS

PDF

44.2 KB Created: 2020-11-07 02:40:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: efd84532a096aa05ec26e07c18aef70c SHA-1: a5260aa23c712ee0d81ccb885a74c5a7edfd60aa SHA-256: 697bfad71f45bc89307eb8fadc3b91eca38864a2be8c68ff27e1119e0fb62130
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://trafficel.ru/aws?keyword=housewives+of+atlanta+porsha+williams+baby PDF link annotation
    • https://numilobes.weebly.com/uploads/1/3/4/2/134235742/3fe89133b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392854/normal_5fa3d42c43324.pdfIn PDF document text
    • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/6770779.pdfIn PDF document text
    • https://tivurenufetoza.weebly.com/uploads/1/3/4/2/134235987/liwadanuja_risemiber_ginodadalop.pdfIn PDF document text
    • https://sukowaletudevux.weebly.com/uploads/1/3/0/8/130874669/195007.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/44eb3f98510ed50.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/ccd0b51c-bc33-4c8b-9580-f9c01cf36c3f/72588659220.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/566f5750-85ff-4f30-bc26-e5e30171233d/photoshop_pen_tool_exercises.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aad5c402-9121-4599-a3a5-baf1457791d1/dungeon_master_writing_tools.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69c0775d-c403-4548-a33f-16b0fcf2ef0f/flushing_michigan_google_maps.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/53458258774.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ba6e808-f6f6-4b21-a3af-c8b0487a5f17/char_broil_h20_electric_smoker_recip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5eed8e2d-9595-43d8-b50f-cc0d1b53a7ef/79477233296.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4516c04-f327-423b-973b-582522ac1c66/wabogabuvo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/434efdb2-7121-40fa-a953-fabdf66fc872/skyrim_sex_mod_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7d5f3ba-340d-46e6-a957-404fafd231ca/pharmaceutical_calculations_workbook.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_off00006e88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E88 5496 bytes
SHA-256: 9a0f19eb106112b3e7081ce1d71a2dfcfc86552ab33648a21beca8ed71e8c6fe
font_01_sfnt_off00008126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8126 10236 bytes
SHA-256: e8fad8bdde81ca616a7fc5177421c6a02e7c5df85a589655b2473c16f1b34f03

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