Malicious PDF — malware analysis report

Static analysis result for SHA-256 b13d02341cc891d5…

MALICIOUS

PDF

46.2 KB Created: 2020-11-06 22:51:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: e4449a1c8c4e89456255f8becc87db03 SHA-1: 57631f6d60b14350dd1de84a1f8c1c04e8d89091 SHA-256: b13d02341cc891d570bdfd30cb89ff49c65e0091467ed9b4a60d574914e3225d
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://traffset.ru/aws?keyword=update+clash+of+clans+apk PDF link annotation
    • https://paxiguvemogi.weebly.com/uploads/1/3/4/3/134317910/7d4bd.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/belapigojat.pdfIn PDF document text
    • https://rakulemuvi.weebly.com/uploads/1/3/4/5/134506415/wofaburur.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/dezidokezapovujiluwa.pdfIn PDF document text
    • https://pusazaninad.weebly.com/uploads/1/3/4/3/134358808/dacc7e4c6cfb3e.pdfIn PDF document text
    • https://weroxodadugofu.weebly.com/uploads/1/3/4/5/134503620/3924fc.pdfIn PDF document text
    • https://xonuveviriniw.weebly.com/uploads/1/3/0/7/130738603/waxagitor_morasugifujawi_lujinepowop_guguwegifedurol.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/xatojem/eddie_bauer_pack_and_play_recall.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3d8367a-7bf8-4049-906d-0a11095229f4/witani.pdfIn PDF document text
    • https://nevosaxovib.files.wordpress.com/2020/11/fizimobaruweboratiweti.pdfIn PDF document text
    • https://s3.amazonaws.com/kimoweworape/test_sound_system_on_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba8084dc-f7be-418d-a73b-2d6a65b9b370/37555174988.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2a2fb21-d994-4881-8ac9-f3fa51242307/the_garage_with_steve_butler_shaker_bench.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebe092bd-871c-4307-bf92-6a76b1a070a9/21265042884.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000683b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x683B 4944 bytes
SHA-256: 5eb3adadcdfcaff3f9cf188ebaa24616741dd384d7210c5a435856ff42d8816b
font_01_sfnt_off0000790d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x790D 10880 bytes
SHA-256: e0bf3203c2ee69b1d5b0bb6cf25b75b82613d55e6923d647cd6291158a7d0924
font_02_sfnt_off00009e17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E17 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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