Malicious PDF — malware analysis report

Static analysis result for SHA-256 9481e1744e0abde5…

MALICIOUS

PDF

57.7 KB Created: 2020-11-08 11:09:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 360d67131ce26d1b254ff6031f949374 SHA-1: 52fa3c701b266dc4d16acbc697a5a5100bd3ec7c SHA-256: 9481e1744e0abde519c0fb752b7a9ae60225d33578e0255ccf9d52beda578725
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://trafffe.ru/aws?keyword=swtor+mercenary+build+pvp PDF link annotation
    • https://voganolov.weebly.com/uploads/1/3/4/3/134372868/getuwafitex.pdfIn PDF document text
    • https://pajujetijawu.weebly.com/uploads/1/3/4/3/134334360/4431640.pdfIn PDF document text
    • https://lefasibemaji.weebly.com/uploads/1/3/4/5/134589759/dunaj.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/gofilafixu/future_floor_polish.pdfIn PDF document text
    • https://segokaguwun.files.wordpress.com/2020/11/84517655789.pdfIn PDF document text
    • https://s3.amazonaws.com/tibovubowilex/vezolazezu.pdfIn PDF document text
    • https://defimoni.files.wordpress.com/2020/11/jigexorujebovub.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/the_awakening_kate_chopin_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bf23b83-18ec-4f87-97a1-6bb6157086fd/elementary_music_songs.pdfIn PDF document text
    • https://wazewezobe.files.wordpress.com/2020/11/napakuxajajufixegive.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/conair_instant_heat_curling_iron_3_4_inch.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_off0000a15e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA15E 5536 bytes
SHA-256: a25a63786bc90380f2c7e01af511f07d4996c8c5fb9c83f6a778dff828301125
font_01_sfnt_off0000b432.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB432 11196 bytes
SHA-256: 45f1112494468879dd234e64743b59803dfb647a988c41507197cfefc03ac850

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