Malicious PDF — malware analysis report

Static analysis result for SHA-256 718a29cf4b34af36…

MALICIOUS

PDF

48.4 KB Created: 2020-10-22 21:18:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: cf2d4e38569a0ef2f9da9deb16a76ba6 SHA-1: b490641cc14647c3fd95223c74ee501a6a3c1aaa SHA-256: 718a29cf4b34af362a142d7b98b12674ffcf1d387bda14c61c072435687f7869
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://ggtraff.ru/strik?keyword=low+carb+mediterranean+diet+food+list+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368747/normal_5f894d5d8c1c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368226/normal_5f885248dc52c.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/kimovutigasezu.pdfIn PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/jenujaba_roforaliso_maxelekafimiri.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/wirexanusir.pdfIn PDF document text
    • https://zinikedefi.weebly.com/uploads/1/3/0/7/130740178/060bbe2c2d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/04f8448d-2dda-4866-9412-0a1aba67423f/zamixetema.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06315eca-1ce3-4537-ab1e-a02357181bd5/dodotedileviguvujal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4d5400f-f603-4231-b56e-cd3e9d3b9189/jikamolipesulip.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/tuvovanotu.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/tivufulinelabuwe.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/tibudozenowevugevezelik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04065df1-fb76-4307-a85e-d897bb761b7a/44634483467.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5dbad32-578c-4738-a79f-f6e4f18fe587/mon_seigneur_et_mon_dieu_partition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/443fffde-2a71-4a8d-97f7-72965688e6f3/xixalaxep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c02a0498-95f9-40e0-b459-d45e37677aea/fesexo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fcad3a1-099e-49c7-a08a-8b3f1dea951a/ropewenowavobulox.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD1 6440 bytes
SHA-256: 2ce5a7286efefc5aae27ce1c31b3347e159d00bd30cf97f509a0b7f7d49caffb
font_01_sfnt_off00007cc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC6 5472 bytes
SHA-256: 60573869497223e494e3bae641e660e2e1f3ffa829493359095bdd47aab5751e
font_02_sfnt_off00008f58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F58 10796 bytes
SHA-256: 9b56047178a6cbbcba48849c08123ec87510cbed18f6baf4856a80b8ddb86517

Open this report in the interactive analyzer, or submit your own file for analysis.