Malicious PDF — malware analysis report

Static analysis result for SHA-256 92f9d54172752dba…

MALICIOUS

PDF

153.9 KB Created: 2021-02-20 17:01:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 92928296af81a31f07c075e877748874 SHA-1: 9e107c51006a47157042d67047e31e7e9970aef4 SHA-256: 92f9d54172752dba917843a27745803a97cd12cca5d6b01a4658066536b9929f
104 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://baarspo.ru/wix?keyword=empires+and+allies+android+guide PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4480904/normal_5ff42a191016b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421641/normal_5ff5f8102503c.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuvezosapa/bmjiibH/office_space_bosses_quote.pdfIn PDF document text
    • https://cdn.sqhk.co/savunowudob/hshf3z8/difexebadoroxu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367923/normal_5fddb35063ce4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465263/normal_5fdc6564eb752.pdfIn PDF document text
    • https://cdn.sqhk.co/furugilenu/tegdFKt/download_spongebob_moves_in_mod_apk_versi_terbaru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417045/normal_60265b784cc24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377662/normal_602b69157e07d.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/roware/corel_draw_x5_full_setup.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/vegizedefasove.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/calendar_2019_psd_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/jupadadomowewotuvuzujek.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/chronology_template_social_work.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_off0002242f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2242F 5236 bytes
SHA-256: 6bbafb1a3dc515e58abb5d2b3e3d4acf5cd41039b089288ab5ad6c777499e03d
font_01_sfnt_off000235e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x235E7 10504 bytes
SHA-256: d62313602266d951f36e0c1be90340888efa9a3c6da1df1ffe01cbd634457059