Malicious PDF — malware analysis report

Static analysis result for SHA-256 8036e11142e7f9df…

MALICIOUS

PDF

38.3 KB Created: 2020-11-08 11:51:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 6efa82565eb17e2e1bbf128d22d29b63 SHA-1: 895261a52299a46d969db532d3f4bf83f5e70250 SHA-256: 8036e11142e7f9df94026c13824c5746d265acb0f7107037cf61e9323d92004a
74 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/123?keyword=mouth+of+a+river PDF link annotation
    • https://kivofijola.weebly.com/uploads/1/3/4/3/134309380/51b5b82ee2cb2a4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367297/normal_5f873c1f78b76.pdfIn PDF document text
    • https://sowofinonapira.weebly.com/uploads/1/3/4/3/134361296/9457412.pdfIn PDF document text
    • https://dixaxotobaba.weebly.com/uploads/1/3/4/3/134377978/wululuneko-dobatosolobof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367621/normal_5f88965f47f05.pdfIn PDF document text
    • https://dosaremuxabibi.weebly.com/uploads/1/3/0/7/130739916/7530875.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382974/normal_5f9be269b9d65.pdfIn PDF document text
    • https://sotodivejezaze.weebly.com/uploads/1/3/4/3/134391575/2591514.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420617/normal_5fa1e67da5d05.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://sebuwisawos.files.wordpress.com/2020/11/fipupojuretis.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/personality_development_and_social_graces.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_off00005a04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A04 4708 bytes
SHA-256: 63e0e494d410123338528fe2aa56fec6e6327a06ad8180f01fc0c9db2f380b73
font_01_sfnt_off00006a15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A15 10132 bytes
SHA-256: 4dcfe3d70df8f330e0d11b5540038f344ba7cb5023f7598dc4b5f033e0ab221e