Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c1049c8c33f6e2f…

MALICIOUS

PDF

68.8 KB Created: 2021-02-20 05:13:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b12b08ffd674bc064eb6a6a7807c859d SHA-1: b2d74bc848ae149bfe4cac511cb440af318b6886 SHA-256: 7c1049c8c33f6e2ffea399403688b2ecc12bb2c10a0658ed90d98efb65c0c906
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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.
  • 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://maypoin.ru/wix?keyword=texas+instruments+ti-84+plus+manual PDF link annotation
    • https://pirovosarelivo.weebly.com/uploads/1/3/1/4/131406751/ditapijivuvore_nedavojebexufi.pdfIn PDF document text
    • https://vuxosulaleko.weebly.com/uploads/1/3/2/6/132695375/9349939.pdfIn PDF document text
    • http://copyrighthelpptteam.com/721470132490nuzl.pdfIn PDF document text
    • http://cetakchantek.com/pichaikaran_cut_songs_isaiminioty7v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426677/normal_602dc598a87c2.pdfIn PDF document text
    • https://wabezapodila.weebly.com/uploads/1/3/1/4/131437306/384136437f.pdfIn PDF document text
    • http://itsamorem.com/93894258323x3zem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4504922/normal_5fd63745e1e9a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421036/normal_6023f35e50140.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402710/normal_5ff1de3b1c054.pdfIn PDF document text
    • https://zobawejifeli.weebly.com/uploads/1/3/4/4/134458567/rokafexoli-falep.pdfIn PDF document text
    • http://d2-club.ru/lulapepolekuxenoprotb.pdfIn PDF document text
    • http://auto-fishing-rods1.club/wanixarirulipejitop3a8b0.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://s3.amazonaws.com/norozovijalu/cisco_ise_able_access_list.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/badedeg.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/poetic_form_of_dulce_et_decorum_est.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/61775262776.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/vagabonding_rolf_potts.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/datasheet_esp8266_12.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_off0000c572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC572 5068 bytes
SHA-256: 4643cb821209ea7ed72b76de81a86583916b73c9d2a0b59ef9dff3d43bbe63cc
font_01_sfnt_off0000d691.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD691 9868 bytes
SHA-256: a5591f0ba575886e23ce227d4d877b980a41989c5a6b7908d7e7ce0d48f8fce7
font_02_sfnt_off0000f7e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E2 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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