Malicious PDF — malware analysis report

Static analysis result for SHA-256 433103008c7970a7…

MALICIOUS

PDF

73.4 KB Created: 2021-03-14 22:05:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 7c339efd4b2987e9c04b3d26e564f29d SHA-1: 0a9ff9ccdd469fce0f063a349938ac5bd703a316 SHA-256: 433103008c7970a791114c10eaaf137d4efa18d4399b6874af0c668fd299622c
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://zajinet.ru/award?keyword=calcium+chloride+dihydrate+msds+pdf', suggesting a phishing or credential harvesting attempt. The presence of PDF-specific heuristics further supports its classification as a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://zajinet.ru/award?keyword=calcium+chloride+dihydrate+msds+pdf PDF link annotation
    • https://dibevoxatatot.weebly.com/uploads/1/3/1/1/131164568/vululedugebozapa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413112/normal_60425f995bf57.pdfIn PDF document text
    • http://circus.market/nebuviwutedukitexo1qfyt.pdfIn PDF document text
    • http://all-host.site/my_friend_finder_app_is_gone3zdjt.pdfIn PDF document text
    • http://dihtyar.online/pamagevosodogimuken1jaa.pdfIn PDF document text
    • http://want-seo.ru/danatitarorifixuzizojudv9z8s.pdfIn PDF document text
    • https://xanusirotenil.weebly.com/uploads/1/3/1/4/131407364/pagaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490738/normal_5fd74f2f2a261.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380531/normal_5fdff00d98768.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393499/normal_5fec1381524d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375357/normal_604cdd48b0f1f.pdfIn PDF document text
    • https://xirabefutabo.weebly.com/uploads/1/3/5/3/135323672/7506f703cc.pdfIn PDF document text
    • http://ag-management.space/white_chicks_free_onlinevt8h0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480756/normal_601a329403f5c.pdfIn PDF document text
    • https://bopamoverera.weebly.com/uploads/1/3/1/4/131408256/jonegewa_vazezep_zikazimu_gakukowig.pdfIn PDF document text
    • https://dezusopivelisuk.weebly.com/uploads/1/3/4/7/134734284/3577710.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/cancer_council_booklet_order_form.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/psychology_101_book_adrian_furnham.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/data_binding_android_java.pdfIn PDF document text
    • https://s3.amazonaws.com/kefiperizonofu/37932814560.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/pafixipuxaloris.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_off0000e2a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A3 5404 bytes
SHA-256: df062cb4855843d1e1fddf77b7eb809da133b090a24dd0a1b87108ba30a0d3be
font_01_sfnt_off0000f4de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4DE 10484 bytes
SHA-256: 3505c000163597d9bedcde968bfbbadced5906267a9e86dab0775f6c81d8f857

Open this report in the interactive analyzer, or submit your own file for analysis.