Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c1a492190ed1ee3…

MALICIOUS

PDF

60.5 KB Created: 2020-11-08 21:38:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 1f422c9a8b63d670af0606b32f9e1901 SHA-1: a9f755d1705651d35379487717cd61b389aba275 SHA-256: 6c1a492190ed1ee3c2aaebf97483c2dc2434babb9e04c69bcd5d32ac2197b711
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=controls+balance+in+the+brain PDF link annotation
    • https://sonujesenusa.weebly.com/uploads/1/3/4/3/134344018/8a3968d56cfb3.pdfIn PDF document text
    • https://zuvimigiga.weebly.com/uploads/1/3/4/5/134586735/3bf1651565a.pdfIn PDF document text
    • https://gofegupozomo.weebly.com/uploads/1/3/4/4/134479888/depisovaberew.pdfIn PDF document text
    • https://mefemanodi.weebly.com/uploads/1/3/1/4/131454269/bitosakuk_nitabexobidikuw_jazaxu_sulisodiza.pdfIn PDF document text
    • https://vipapesad.weebly.com/uploads/1/3/4/3/134369303/jakekusuvoweb.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/a63fb.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://uploads.strikinglycdn.com/files/6da780f3-a0f1-48d8-bc00-addd2cc2d9ec/19755730127.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/angularjs_interview_questions_for_freshers.pdfIn PDF document text
    • https://gesoxog.files.wordpress.com/2020/11/carnal_knowledge_short_story.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/715ce1c5-84fc-4ab8-b625-d9537232ec05/kaxuv.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/51070773834.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/micki_steele_images.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c35f140-3b59-4c99-9920-0538590d269a/transformers_age_of_extinction_full_movie_download_free_hd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7020cd8e-3870-4ebe-bba2-6bd2b9d0a160/5010532205.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b64f49bb-67ca-4930-b497-145db7de6f71/rofomofesorusi.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8803 6744 bytes
SHA-256: 127b44c9f93874c96d25eb7ddc4688780d8877ce931cf296363fb5748d8d514b
font_01_sfnt_off000098ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98EA 4836 bytes
SHA-256: ad750f8af0e7c7afde3557ce77d9ee52d096589104f5bbcf1e0f22f29f9ada8b
font_02_sfnt_off0000a945.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA945 14412 bytes
SHA-256: 1080c106a61c1f3f7448bd839ce08e4b14310e0c7089b2740edb783f8eea4a2d
font_03_sfnt_off0000d654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD654 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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