Malicious PDF — malware analysis report

Static analysis result for SHA-256 a22255c692b086bb…

MALICIOUS

PDF

39.4 KB Created: 2020-11-06 20:52:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: ffda197f2a7641e9d4ab9311c9bb4798 SHA-1: 7cbac23e54a4f493a666ba25f38fa9434f5d33b9 SHA-256: a22255c692b086bb0517dd74f38b679fd16921f062181d76141db83b12cfbcad
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=bra+smyth+catalog PDF link annotation
    • https://dosedoduni.weebly.com/uploads/1/3/4/3/134347632/vixoxon_kuzononazaje_tekumudu_modafiwavudex.pdfIn PDF document text
    • https://bodadesoka.weebly.com/uploads/1/3/4/2/134234706/xixuparabejufun.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/64a44c53-a3f9-4ee8-bddd-eada21527946/tipos_de_drogas.pdfIn PDF document text
    • https://waxixevot.files.wordpress.com/2020/11/kifufef.pdfIn PDF document text
    • https://zojemadej.files.wordpress.com/2020/11/73587489466.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6b3535a-fa55-4118-bd4e-b1af96ffa874/wovodibezozugiw.pdfIn PDF document text
    • https://negolakone.files.wordpress.com/2020/11/68314913009.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/435427af-e47b-42a1-a7e2-1727f39de410/64387864414.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f37b3cea-e42a-4a8d-a726-e2d3c0cf9965/94878025017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a22701c7-5534-4060-b240-da13de3ff21d/home_sheep_home_3_lost_in_space_unblocked.pdfIn PDF document text
    • https://notazit.files.wordpress.com/2020/11/20037331592.pdfIn PDF document text
    • https://tuxabavijig.files.wordpress.com/2020/11/37940387668.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_off00005902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5902 5364 bytes
SHA-256: 07cb33ccc2884d6222424e2361d3aedbccba02d82bb8e77b8ee7f7fb090c32c1
font_01_sfnt_off00006b1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1F 11216 bytes
SHA-256: c479f0d992eb992ca7ccb6a7af00fc50e1de475f3b049ac6c8a3242dea7dd5fe