Malicious PDF — malware analysis report

Static analysis result for SHA-256 0640e7d78b73658f…

MALICIOUS

PDF

48.1 KB Created: 2020-10-16 02:59:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e1e24676d2d46151143ab6afb1e3aab5 SHA-1: 31b83211a19dd632d8615b08ab3dbb5be563318f SHA-256: 0640e7d78b73658feb2696972a2cc296dc277452d74cdfc1148c34022bc88775
132 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ttraff.ru/pify?keyword=fts+pes+2020+mod+apk+putra+adam In PDF document text
    • https://site-1040426.mozfiles.com/files/1040426/xanosadufozujasaweneruko.pdfIn PDF document text
    • https://site-1038779.mozfiles.com/files/1038779/12006013606.pdfIn PDF document text
    • https://site-1039644.mozfiles.com/files/1039644/9248192682.pdfIn PDF document text
    • https://site-1043237.mozfiles.com/files/1043237/71736102272.pdfIn PDF document text
    • https://site-1036702.mozfiles.com/files/1036702/pajenifujexevelubez.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/3532345.pdfIn PDF document text
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/wujilutu-xekoxuwi-vobiva-fudek.pdfIn PDF document text
    • https://site-1037103.mozfiles.com/files/1037103/kazokixepezut.pdfIn PDF document text
    • https://site-1042992.mozfiles.com/files/1042992/fun_for_movers_4th_edition_vk.pdfIn PDF document text
    • https://site-1040094.mozfiles.com/files/1040094/vovasitugopalipifoxenox.pdfIn PDF document text
    • https://site-1048445.mozfiles.com/files/1048445/duvowugitixilivewejumava.pdfIn PDF document text
    • https://site-1039491.mozfiles.com/files/1039491/30192239714.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370080/normal_5f8866c96c720.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371786/normal_5f88d33ad1429.pdfIn PDF document text
    • https://sonilotosoj.weebly.com/uploads/1/3/1/3/131379329/sizafe.pdfIn PDF document text
    • https://pibazafefudo.weebly.com/uploads/1/3/0/7/130776509/jukesozulux.pdfIn PDF document text
    • https://wivupenoremew.weebly.com/uploads/1/3/0/7/130775018/guliri-zukuwatuv-govexu.pdfIn PDF document text
    • https://kupugaxome.weebly.com/uploads/1/3/0/9/130969415/rozav_tapojox_wefuwolav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366980/normal_5f876686e12ad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367304/normal_5f88ba9d51690.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372100/normal_5f88b97a51531.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369142/normal_5f888969ec4ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366961/normal_5f8845942623d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00007d25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D25 5364 bytes
SHA-256: 494c49f3736239ad9e7b25384f40b83fedda6dcb875bccb038a18b6a2bd2e87e
font_01_sfnt_off00008f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F4A 10316 bytes
SHA-256: 68eecc058fed6449d5dc4c368e62dc286efc8a772dd244cb5bb69524d6d87ed0

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