Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd440df92c5e9b2d…

MALICIOUS

PDF

44.5 KB Created: 2020-10-24 02:52:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-02
MD5: 1f54cc5b04238dba191f9d32a045b84d SHA-1: 662a35594c506c35d68ea14e8a0ad3dd7863f463 SHA-256: dd440df92c5e9b2d9bfbde7535ea1bbdc985cb011dfb41398a6736fe2363b554
194 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.link/aws?keyword=ableton+live+10+manual+%25D0%25BD%25D0%25B0+%25D1%2580%25D1%2583%25D1%2581%25D1%2581%25D0%25BA%25D0%25BE%25D0%25BC+pdf In PDF document text
    • https://takijotirodone.weebly.com/uploads/1/3/1/6/131637658/4bd5d9910.pdfIn PDF document text
    • https://bubixoduxufito.weebly.com/uploads/1/3/1/0/131070588/lodujeze.pdfIn PDF document text
    • https://laxigozi.weebly.com/uploads/1/3/4/3/134361341/mexenewuvotak-lodogo.pdfIn PDF document text
    • https://penepanixefi.weebly.com/uploads/1/3/4/3/134354239/buzup.pdfIn PDF document text
    • https://tibiwurab.weebly.com/uploads/1/3/2/6/132695994/gogesivoweba_wumuviw_vewugedu_konakavu.pdfIn PDF document text
    • https://vikumeniwexawud.weebly.com/uploads/1/3/0/9/130969440/bomovazisobibo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376609/normal_5f8ab3d19649d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388428/normal_5f905d892c4ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380882/normal_5f8c47706e820.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368991/normal_5f8bd25feddd5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370785/normal_5f88ffd96692e.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/zidebesirolabavo.pdfIn PDF document text
    • https://musazowoxagaw.weebly.com/uploads/1/3/4/3/134323980/c0e2b.pdfIn PDF document text
    • https://dopuxaponaxu.weebly.com/uploads/1/3/2/6/132695391/98f03b2a8.pdfIn PDF document text
    • https://runebipunozup.weebly.com/uploads/1/3/1/4/131406604/najemivipon.pdfIn PDF document text
    • https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/rutekonenezosovig.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000060dc.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000060dc.bin)
    • https://cdn.shopify.com/s/files/1/0483/3823/9651/files/94700833281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/4973/7115/files/bad_piggies_hd_2.3.3_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8671/8127/files/45179543074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/5088/4008/files/fajazusutizoravimekixefok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/4565/2133/files/76846747015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/4721/5000/files/music_theory_roman_numeral_analysis_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/1586/0135/files/vulidazavufujuvetemigoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/0111/9398/files/24017304867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9617/8845/files/karmouz_war_wiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/5299/0103/files/john_doe_tv_show_where_to_watch.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_00_sfnt_off000060dc.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60DC 6200 bytes
SHA-256: 70e3e43b4e34e40ea5fbf7758068d15247ef5e83815ce174a07338630ff05ed1
font_01_sfnt_off000074bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74BB 14376 bytes
SHA-256: d34cf5cd910220f9908d2ea385e6da84c6c31cfa746291faa317f4e642133e7d