Malicious PDF — malware analysis report

Static analysis result for SHA-256 8300a7e97ec38948…

MALICIOUS

PDF

70.0 KB Created: 2021-02-23 23:39:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a02fd95fb01bde3a44b8ba98e6cc6853 SHA-1: faa6135a41cbc682edf1bedd72cc66c55ccc91e4 SHA-256: 8300a7e97ec3894882554247b42e1cbd553d7f46329aac7d02750ede0fd7e1ed
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jacksth.ru/123?utm_term=how+to+measure+learning PDF link annotation
    • https://cdn.sqhk.co/jefigujaxev/dZQih8C/loniganavuvezaxosesafupov.pdfIn PDF document text
    • http://dasuwupozu.22web.org/72377080967.pdfIn PDF document text
    • https://cdn.sqhk.co/kupulifip/hhvuhbW/bni_triangle_business_builders.pdfIn PDF document text
    • http://znakomstva18x.site/15605907142foblz.pdfIn PDF document text
    • http://idealica-official.website/wizard_of_oz_story_bookdzgvt.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/ghgjgie/kotojowogusonojuramukuw.pdfIn PDF document text
    • http://gufutaca6.xyz/70485773341shm1p.pdfIn PDF document text
    • http://probkin34.xyz/zobogoxolotegeongi8.pdfIn PDF document text
    • https://cdn.sqhk.co/penomufepuk/5scCgiu/pencil_pouch_in_spanish_translation.pdfIn PDF document text
    • http://wssummer.space/546038476109a6y5.pdfIn PDF document text
    • https://cdn.sqhk.co/dilipokoje/hjZhijg/rome_total_war_2_unit_size_mod.pdfIn PDF document text
    • http://herss.space/97764824174hdmq6.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/ninasivol/pisigefivu.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/xulejelonefi.pdfIn PDF document text
    • http://pavebutom.epizy.com/planeacin_estratgica_personal_uveg_tarea.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_off0000d599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD599 5056 bytes
SHA-256: a2f409690d68b3f0882db173f4a11c993b421814ffc49940f0ecc57b72ae855a
font_01_sfnt_off0000e6bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6BD 10828 bytes
SHA-256: 0a6839e2c74831d57ba46be2d042c8d7ef17c30a9bd6b8ac99cac700c0da9cf9