Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0205d41bbc20a4c…

MALICIOUS

PDF

43.2 KB Created: 2020-10-29 03:48:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: f35c05a3105492bd4ff2832b60caed37 SHA-1: b0974d5469e893a234a1f229f28130ec26ade434 SHA-256: e0205d41bbc20a4c6c66967e49c82d80aecb0395e2e02b428662c8d5b5a8ee9d
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://cctraff.ru/pify?keyword=lug+ripper+water+bladder In PDF document text
    • https://fozijiruzixusap.weebly.com/uploads/1/3/4/3/134317533/vunalirogilejadaver.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367311/normal_5f89b4349476f.pdfIn PDF document text
    • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/1d8c89f3e56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419002/normal_5f99794e8eb7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368748/normal_5f89b4245c378.pdfIn PDF document text
    • https://nijubalalo.weebly.com/uploads/1/3/1/4/131453980/2070009.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000068da.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000068da.bin)
    • https://s3.amazonaws.com/tuxenipup/mixubimisorewapat.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/fokeluxezajuvib.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/43214475086.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/44503319766.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/72371031408.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/mubupukatonuxazerigubi.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/tamil_girl_baby_names_starting_with_t.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/60519835845.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/el_almohadon_de_plumas_descargar.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/daxadegetepipene.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/7224488540.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/c_diminished_chord_guitar.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/lymphatic_drainage_of_head_and_neck.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/astrology_books_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/7953443110.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_off000068da.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68DA 5124 bytes
SHA-256: 5fe942cc04a518877c3211fcf4c9ab233d090d192d5268e5924e11fe4618e86f
font_01_sfnt_off00007a64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A64 11036 bytes
SHA-256: 02e4dc956c64677cb1e5464b3d8b4af393cb030bcd03fffbe86329eeafd14aa6