Malicious PDF — malware analysis report

Static analysis result for SHA-256 61d116c63dc2a93f…

MALICIOUS

PDF

68.5 KB Created: 2021-01-27 04:48:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fc5c9576d468def727cfc7e9e20b4b03 SHA-1: 23dfa288d6b32a0cc17921b7060b10df72946309 SHA-256: 61d116c63dc2a93f7a3cb54d4bdfa2db282f5bddf02251c567029a9194e734e0
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wb?keyword=pba%20league%20championship PDF link annotation
    • https://zunodeni.weebly.com/uploads/1/3/1/0/131070331/9798426.pdfIn PDF document text
    • https://pirizujimo.weebly.com/uploads/1/3/4/4/134454944/sagubadinog.pdfIn PDF document text
    • http://vsspb.ru/13162789175lqwxp.pdfIn PDF document text
    • http://vzale.ru/nigidabixafede1x3og.pdfIn PDF document text
    • http://itagreen.fun/scary_horror_escape_level_6g211r.pdfIn PDF document text
    • https://roxasudafuj.weebly.com/uploads/1/3/0/7/130740166/7272512.pdfIn PDF document text
    • http://idealslimitaly-official.site/64768330718wy5lg.pdfIn PDF document text
    • http://tumerasiwabuzip.22web.org/70780602232.pdfIn PDF document text
    • https://cdn.sqhk.co/pomorezolo/jgmjijf/nimibidixesatamiv.pdfIn PDF document text
    • http://sewototenovaro.iblogger.org/hotstar_premium_apk_uptodown.pdfIn PDF document text
    • http://amsidgi.xyz/security_alarm_mobile_anti_theft_app_for_android1luyz.pdfIn PDF document text
    • http://probmaka.tech/40554967021z9v9l.pdfIn PDF document text
    • https://cdn.sqhk.co/fovuxugo/hghgjbm/21347747420.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/bipepezuwed/77525130173.pdfIn PDF document text
    • http://litopuputorer.rf.gd/free_vpn_android_china_server.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_off0000cef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEF6 5392 bytes
SHA-256: d227b6f726496a10c04dc4d20187e3ba97193a929880844061321d1c943edad5
font_01_sfnt_off0000e126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE126 10956 bytes
SHA-256: 965f7cf6ec49427b5312e9a80d9d7c7f1e8332489216b73a0a02b580dc28ad03