Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6e4996b7aa587fc…

MALICIOUS

PDF

49.3 KB Created: 2020-10-23 20:48:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-17
MD5: fbdebac8edb09f49256fc2af1cd1bf3c SHA-1: c94944097908fbc2359eaeaab3d1e51084a9f1cb SHA-256: b6e4996b7aa587fc398f58e41ea3677cdb930805ae81cdd2f24042540d9014f8
242 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://gettraff.ru/123?keyword=clash+of+clans+mod+apk+magic+s1 In PDF document text
    • https://s3.amazonaws.com/tizowodifi/ilmi_capsule_islamiat_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/58913634450.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/wiedmin_bestiariusz.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/53872900420.pdfIn PDF document text
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/ginutu_roxetoju.pdfIn PDF document text
    • https://fapifejoj.weebly.com/uploads/1/3/4/2/134265577/2049486.pdfIn PDF document text
    • https://vidojibirulon.weebly.com/uploads/1/3/1/0/131070792/2930890.pdfIn PDF document text
    • https://nudojafobedem.weebly.com/uploads/1/3/1/3/131379550/2084416.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/wageseperexejekalux.pdfIn PDF document text
    • https://tejigenunonim.weebly.com/uploads/1/3/0/8/130813632/texil.pdfIn PDF document text
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/mevulemuturekaganas.pdfIn PDF document text
    • https://tedumuwoke.weebly.com/uploads/1/3/1/3/131397970/9f161046b16677d.pdfIn PDF document text
    • https://rikisuluwujufa.weebly.com/uploads/1/3/1/4/131452938/nixomaz_gagaxe_xafelujevonof_woluwapomewema.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/86925.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382966/normal_5f8f6c0216208.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369487/normal_5f8bdd9f61cad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379736/normal_5f8f4c9c806d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408174/normal_5f922dbf91576.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375342/normal_5f8abf75261c7.pdfIn PDF document text
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/digebanoretedolik.pdfIn PDF document text
    • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/wedopeja-dewusikowalufez.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/plunger_type_pump.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/ditetofavixamakipajowoso.pdfIn PDF document text
    • https://s3.amazonaws.com/zugutixe/vertical_turret_lathe_machine.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/72143468205.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/33320441148.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007fee.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007fee.bin)
    • 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_off00007fee.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FEE 5492 bytes
SHA-256: 7efdec1d1a28a343dce7ee7ba42c5cd6f1b0ba6b9db5f058ee8adaa4b86c1469
font_01_sfnt_off00009282.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9282 10924 bytes
SHA-256: 4ec0ae366ef5323747aaade66e270996f171fe45c68275e5ab04c3cac174646e