Malicious PDF — malware analysis report

Static analysis result for SHA-256 43355702eba9f126…

MALICIOUS

PDF

69.6 KB Created: 2021-03-18 17:08:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2e5cbef6157b6dacbf03e0e0117be791 SHA-1: 33d56d429c96d60de2ac658e375a2a574ed6fdd6 SHA-256: 43355702eba9f12658d4e65bd20c817b78dd5ebc84d5d890514e4e0d8817dd09
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://nipisod.ru/wix?keyword=born+losers+full+movie PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369313/normal_6024106c4829e.pdfIn PDF document text
    • http://vidclips.design/gifugonasije8ctx4.pdfIn PDF document text
    • https://jajaleregonu.weebly.com/uploads/1/3/4/2/134235513/lafuv_pizuzukoduro_zexeko_golixireful.pdfIn PDF document text
    • http://edevletorg.com/lejipowemigogidakokolepaf1o0io.pdfIn PDF document text
    • https://dinowupeguf.weebly.com/uploads/1/3/1/3/131379410/e92afb328d24eb9.pdfIn PDF document text
    • https://garagagu.weebly.com/uploads/1/3/4/3/134364865/2b2b613f85fe35e.pdfIn PDF document text
    • https://xigakoter.weebly.com/uploads/1/3/1/3/131379919/segatunogok_fovebum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481154/normal_60196d2f1e083.pdfIn PDF document text
    • http://nickned.me/botekatovi5pr5p.pdfIn PDF document text
    • http://importants.space/businessman_telugu_movie_in_movierulzgt5dk.pdfIn PDF document text
    • https://letavozogat.weebly.com/uploads/1/3/5/9/135978758/7897304.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384634/normal_60439219e4db6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390068/normal_604d17b48b642.pdfIn PDF document text
    • http://pink-echo.club/33861652468kfgcn.pdfIn PDF document text
    • http://salestore.pro/xipefulagl03y.pdfIn PDF document text
    • https://dusibijerike.weebly.com/uploads/1/3/2/6/132695870/zovemarupusere.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480585/normal_602c0dfd8c0c0.pdfIn PDF document text
    • http://exampl1214.com/56420521393llmkn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://67bb8873-ca08-4da4-87c0-60a8072ebff6.filesusr.com/ugd/a838c0_f0c3da7af2b44cfaa4b63d0ed2905a8e.pdf?index=trueIn PDF document text
    • https://add83a7c-0e31-48b3-928b-061d82ba9144.filesusr.com/ugd/205ae4_1ca57f000c0441b9977fdb2caaa0a00d.pdf?index=trueIn PDF document text
    • https://246406bc-bb0d-4f29-baed-d8a6153a9543.filesusr.com/ugd/3ddeef_b41ab3ec8c8a4e9ab299bdba76a8e962.pdf?index=trueIn PDF document text
    • https://03f57db0-fbcf-46ec-8713-21b5992b8512.filesusr.com/ugd/455f95_a322ba2f38964419b710bb034d752cba.pdf?index=trueIn PDF document text
    • https://591e60e9-54e8-4b06-a9a7-f2e0522969d0.filesusr.com/ugd/1fd4b7_e583090d6db949dba4a93530f7d222ed.pdf?index=trueIn 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_off0000d359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD359 4812 bytes
SHA-256: 6242e25ba5ae22f6eb8a580919eacb70058ec048563c617032b7ff53a2cce130
font_01_sfnt_off0000e3ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3AE 10512 bytes
SHA-256: 7aa9567259ef5a8a50c60c8dd09e87b70a009c0c925a2b59bf263fd49c219bdf