Malicious PDF — malware analysis report

Static analysis result for SHA-256 94ee6a3804aedc4d…

MALICIOUS

PDF

88.1 KB Created: 2021-03-09 14:38:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 0f0d2d18bd20c50ab87e6412d54a752c SHA-1: 3e8fcd77df8eb1c538abc26fe4e39976ea704709 SHA-256: 94ee6a3804aedc4d7c87ed3870ab64991d042ad05472ca52ac9b6a960f94f772
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded URLs pointing to known malicious redirector infrastructure, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://dafemum.ru/aws?utm_term=table+saw+dewalt+dw7187 In PDF document text
    • https://cdn.sqhk.co/bojodunaluko/cfhQAgd/fantasy_forest_wallpaper_mobile.pdfIn PDF document text
    • http://bupimobim.sportsontheweb.net/amsco_us_history_2020_answer_key.pdfIn PDF document text
    • http://komozazene.getenjoyment.net/1821026821.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417523/normal_5fcea9e5946c8.pdfIn PDF document text
    • http://dalidusiz.mywebcommunity.org/sopamudazokorape.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413975/normal_5ffce1c54f76e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482402/normal_6031534438501.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366949/normal_5fe313ffec840.pdfIn PDF document text
    • https://woxazalaxit.weebly.com/uploads/1/3/4/2/134235403/menesu-jikonati-damowisoxof.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410727/normal_5fe599ddcd67f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393489/normal_600f72cc5739a.pdfIn PDF document text
    • https://cdn.sqhk.co/janezewufaj/gSgfCRq/rijalarugafi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447631/normal_5fcb692a6e221.pdfIn PDF document text
    • https://cdn.sqhk.co/takoxuwal/hjhgdgc/hmrc_self_assessment_registration_deadline.pdfIn PDF document text
    • https://cdn.sqhk.co/nilimijano/WgdQRij/mejijukiw.pdfIn PDF document text
    • https://cdn.sqhk.co/gisatajofo/99hjRjc/87793776174.pdfIn PDF document text
    • https://tabureribe.weebly.com/uploads/1/3/0/8/130813037/wumovesamanunad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494429/normal_6019b962a8fc7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366622/normal_5fd26c206962a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371247/normal_602a1e66d32b0.pdfIn PDF document text
    • https://bubebozozuj.weebly.com/uploads/1/3/1/8/131871643/9054922.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://pujumek.myartsonline.com/95085916923.pdfIn PDF document text
    • http://zuxokoberibaw.atwebpages.com/sorolinukasoxos.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA48 5228 bytes
SHA-256: 81bdaf7b830fe3307b55552a44534c122792bd901bf5ff9deac36aa40588144d
font_01_sfnt_off00010c32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C32 6640 bytes
SHA-256: 3a69a7de15391346dbbfdd63b65a06fcdeaebdd59bfa8579dc3c3ab561c3f384
font_02_sfnt_off00011ddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DDB 11616 bytes
SHA-256: 2acc433fcb04a5033223541f71b4a0ee9815a6cc05e6a583c456f1de78f2eb8d
font_03_sfnt_off0001453a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1453A 3392 bytes
SHA-256: 06dd6ccbebdfba849fc99f8c0271b360ce26e30dff55856782f7581eb5d31c50

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