Malicious PDF — malware analysis report

Static analysis result for SHA-256 60f44432267eb7a1…

MALICIOUS

PDF

48.0 KB Created: 2020-10-18 16:29:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e1e932796d0bb7ba5136b74083015e0e SHA-1: 90c8f9fd2955d6f62c788fc8bf959e87ea7a7a9f SHA-256: 60f44432267eb7a10c17772e8084b30af0e900caf7c89a2ade1c884ae59ee869
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.me/123?keyword=3+phase+motor+winding+pdf In PDF document text
    • https://fewevivib.weebly.com/uploads/1/3/0/8/130813821/e360e447ef8.pdfIn PDF document text
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/a785a026bb.pdfIn PDF document text
    • https://vunixumo.weebly.com/uploads/1/3/1/4/131453253/gobafiroro-nulunaw.pdfIn PDF document text
    • https://penopetidurip.weebly.com/uploads/1/3/2/8/132815040/7518724.pdfIn PDF document text
    • https://sepikupi.weebly.com/uploads/1/3/0/7/130738949/kolutal.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4d5351fbb209c0.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/83905a54a030772.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366662/normal_5f8947c655001.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366319/normal_5f8b4278199bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369168/normal_5f88d02d7e4de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373509/normal_5f8bd6af29cd0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8358/6977/files/save_my_life_im_going_down_for_the_last_time_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/7888/4759/files/y2mate_mp3_download_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/8184/4886/files/2091169699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8776/4898/files/icloud_account_recovery.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/1875/0616/files/tadofugonabepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/3739/3564/files/zenin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9737/5388/files/free_download_spotify_premium_apk_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6211/7031/files/99550044374.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6081958-c424-4dcc-8217-ae6a0e028f91/jizabifud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9ca7205-cd79-456c-bc38-c8bbbe4fe20d/vepixe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f203fd5-8331-4eb9-99b6-d0cb4ec625a8/9284437469.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5ced5bd-2c03-452f-a682-6693a69e09c4/kaxeworelafaxe.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70C6 5372 bytes
SHA-256: aa7538c7b20f0f225e606937041634029d81133f893f68cee16368111f111080
font_01_sfnt_off000082eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82EB 9832 bytes
SHA-256: b9e94d8e1733d0fb48ca281218616ce7419210069433fae56209710f01570cd2
font_02_sfnt_off0000a482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA482 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34