Malicious PDF — malware analysis report

Static analysis result for SHA-256 abc315fab6e1a570…

MALICIOUS

PDF

52.1 KB Created: 2020-10-30 00:49:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: b69c78295f3bdf446127add71a09c658 SHA-1: b88461665a4d87eb01f52d84afa78a30c5d3a45e SHA-256: abc315fab6e1a57006b0256ae9d3825b7db99f43041e4f76323370835db526f9
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://cctraff.ru/aws?keyword=reassure+life+insurance+reviews In PDF document text
    • https://sasenepekevob.weebly.com/uploads/1/3/4/2/134266747/petutumu.pdfIn PDF document text
    • https://sisodiwitamusoz.weebly.com/uploads/1/3/2/6/132681746/127b244a1.pdfIn PDF document text
    • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/16a73e.pdfIn PDF document text
    • https://gexumuvebevo.weebly.com/uploads/1/3/4/3/134312536/16846f.pdfIn PDF document text
    • https://xomevore.weebly.com/uploads/1/3/4/3/134346529/tizoxamikivojox_tiwupotuvawawup_rozegek_juvurofa.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/zobutokajapu.pdfIn PDF document text
    • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/98256.pdfIn PDF document text
    • https://remewizefo.weebly.com/uploads/1/3/1/8/131856163/45289b7.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/5014488.pdfIn PDF document text
    • https://giginepa.weebly.com/uploads/1/3/4/3/134389182/1099698.pdfIn PDF document text
    • https://bikojeril.weebly.com/uploads/1/3/3/9/133999271/9554138.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off00008acf.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off00008acf.bin)
    • https://cdn.shopify.com/s/files/1/0441/2506/1272/files/present_perfect_simple_worksheets_esl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0424/7715/files/20491521234.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/total_asset_turnover_ratio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8314/4599/files/herramientas_del_pensamiento_critico.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 extracted file (font_01_sfnt_off00008acf.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000802a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x802A 2968 bytes
SHA-256: abee2b393ec2fb9fec7f30c584fa7e125e99fd0856e0afbe60a6d6a568499c8d
font_01_sfnt_off00008acf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ACF 5036 bytes
SHA-256: dc9262b40d861c49dd71f3519d089713c9e1451bb31f744f602f7e0b0542075c
font_02_sfnt_off00009c1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C1B 11484 bytes
SHA-256: 48ed0878d253909ea6afb92247fbea3b9ef59c2ef5c8ef9c3c46da39458f04fa

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