Malicious PDF — malware analysis report

Static analysis result for SHA-256 e94026654ad600ab…

MALICIOUS

PDF

52.2 KB Created: 2020-10-28 09:28:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 3e9abccf2278f6293d6231f84e7a2607 SHA-1: c93a80ac9a149eaa8ca04dd1b8318b0b310c5e06 SHA-256: e94026654ad600ab25b8a435f9dcce3e6e6506313e051f78361000937b8594c7
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=six+guns+hacked+version+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4384471/normal_5f920470b7a75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366335/normal_5f8e999254fdb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366032/normal_5f8721c141de5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371514/normal_5f885da0457de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365576/normal_5f87344e35930.pdfIn PDF document text
    • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/aea14f.pdfIn PDF document text
    • https://vefozifus.weebly.com/uploads/1/3/4/3/134382693/3093902.pdfIn PDF document text
    • https://bubudatitiga.weebly.com/uploads/1/3/4/3/134308982/poguxuze.pdfIn PDF document text
    • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/vupuxa.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/rebodi.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/kekikefuwu.pdfIn PDF document text
    • https://limisakaxenit.weebly.com/uploads/1/3/4/3/134371081/jinatutigixikaxepi.pdfIn PDF document text
    • https://jesasifewom.weebly.com/uploads/1/3/1/4/131453969/fovulosalagasixower.pdfIn PDF document text
    • https://titumakusijuvap.weebly.com/uploads/1/3/4/3/134353199/4348329.pdfIn PDF document text
    • https://sudewivozuv.weebly.com/uploads/1/3/2/3/132303071/5202845.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007451.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007451.bin)
    • https://s3.amazonaws.com/satedafadusizo/34992818272.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/josog.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/86738025268.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/kofus.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/xavajetijilon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/5716/0614/files/how_to_delete_a_deposit_in_quickbooks_for_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/1547/4847/files/cpa_marketing_tutorial_bangla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/9605/1363/files/sosibofepixifizadenodono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4468/4454/files/pokemon_powerpoint_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/7168/5027/files/dukuminolalus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8996/2181/files/xamexavo.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_off00007451.bin)
    • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000ac88.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000ac88.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007451.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7451 5588 bytes
SHA-256: cec35e8179a317eab641d37a776da72972a90b46f6b452c1b5c847490424f88b
font_01_sfnt_off00008756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8756 10928 bytes
SHA-256: 5b619191b53163fb997061f16fd73c5e97d3c8ba8473bb9bc96ea989cb5a124f
font_02_sfnt_off0000ac88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC88 16272 bytes
SHA-256: 82b32699d950f0d2801881094b97f6a3b10b5d147672c8518649046776eee3b8