Malicious PDF — malware analysis report

Static analysis result for SHA-256 60f864d8c6926fed…

MALICIOUS

PDF

43.6 KB Created: 2020-10-14 23:12:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 7e4d7ad5e6fc1c7f5851dbd452b4e2cc SHA-1: 738106277588ef380400bc9bf158b146ba5e63bd SHA-256: 60f864d8c6926fed5a1181fc7917997d6a2fb35e1aa89e12145e2c307c27fd7d
192 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=age+of+empires+castle+siege+download+android In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366623/normal_5f873e5ba00b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366952/normal_5f8758008de04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366676/normal_5f871d2d558ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366063/normal_5f873285c7caa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365575/normal_5f874c6875e7d.pdfIn PDF document text
    • https://pepotoxuxomupav.weebly.com/uploads/1/3/1/4/131483830/sulag_beramezobam_jevukisu_zajifetapog.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/movew.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/vovofofaverun_sawivurovoj_nifawubazox.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/ratot_muweliwamopoj.pdfIn PDF document text
    • https://rakamukomegu.weebly.com/uploads/1/3/2/6/132681656/630dc3.pdfIn PDF document text
    • https://site-1040504.mozfiles.com/files/1040504/43574588283.pdfIn PDF document text
    • https://site-1040259.mozfiles.com/files/1040259/65471119715.pdfIn PDF document text
    • https://site-1037235.mozfiles.com/files/1037235/96074684512.pdfIn PDF document text
    • https://site-1038675.mozfiles.com/files/1038675/44312471231.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/5677351.pdfIn PDF document text
    • https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/636913.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/ef82e0d.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/roriturosiw.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/3e75a4e696b2f2d.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/xududev-ledavodu-jatulivarolaxe-bixebenal.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/9844/3428/files/tibobokopoboburubefuvit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1819/7398/files/bimudikobomowiwidupuluv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5448/7957/files/kabazakamafomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7182/6841/files/south_bend_lathe_operators_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/3567/6831/files/bofiruzebulopilukokaba.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0D 5556 bytes
SHA-256: 1a4b9fcde1306cc9c002f3f227e0cc5989e3c5b0c2ef554ae86603e3bdcaafc1
font_01_sfnt_off00007dea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DEA 10440 bytes
SHA-256: 82f32246ccc18562887d61c5fb484d08f993bafc22da5e9a6ff8ae77998c8ff6