Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9197db2c9594403…

MALICIOUS

PDF

81.5 KB Created: 2021-03-05 05:45:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: ecac58dc156cdcd672706e2c3940a606 SHA-1: 75aa649a999a8001361f92979e020cb768903553 SHA-256: d9197db2c9594403107833a933247d834b9c8878f1d0b1bd7a9b207c7759511f
116 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, specifically as a phishing or trojan. The 'SE_CALLBACK_LURE' heuristic indicates the document is designed to trick the user into calling a phone number, a common callback phishing tactic. While no scripts were explicitly extracted, the presence of embedded URLs suggests a potential for downloading further malicious content or redirecting the user to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://xajibur.ru/strik?utm_term=invicta+watches+for+sale+in+pakistan PDF link annotation
    • https://dananiruw.weebly.com/uploads/1/3/2/7/132741593/zisevorepopam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366958/normal_6003660c5225a.pdfIn PDF document text
    • http://natikolom.site/merolapedofunopuqishv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413842/normal_6006ea4ebb8fb.pdfIn PDF document text
    • http://powuvomewekuxeb.getenjoyment.net/soundcraft_ui24r_multitrack_recording_daw.pdfIn PDF document text
    • http://6gusevshop.website/milonomipu34q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390684/normal_602a4f5cbad46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374013/normal_6020391c53e64.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465025/normal_5ffd45420dd1d.pdfIn PDF document text
    • http://xalenupom.getenjoyment.net/linadogokirapeziro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485698/normal_601d26530876b.pdfIn PDF document text
    • https://futiwetag.weebly.com/uploads/1/3/4/3/134367494/d35b226da684b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465131/normal_6040f8e354c93.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389352/normal_6008e85687aa0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368763/normal_603bd98fa123e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450417/normal_6000b081890e0.pdfIn PDF document text
    • http://presentinsta.site/my_window_ac_unit_wont_turn_on5kpme.pdfIn PDF document text
    • http://jovepodixowofow.mygamesonline.org/60619581228.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/fokapikow/2017_kia_sedona_lx_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/c_compiler_free_for_windows_xp.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/ratefijofiberef.pdfIn PDF document text
    • http://vawerudarasikow.myartsonline.com/is_the_mini_mental_status_exam_free.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/61382314655.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_off0000f460.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF460 5044 bytes
SHA-256: 27d84b3197e2779f3e0b05662372f8a1cb1d4cd7fc9a443f779b916e0d20830d
font_01_sfnt_off00010582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10582 10776 bytes
SHA-256: 029c9803092bff21ecbb1451f1615542995301cc8dfc42d3af28bb5098410c86
font_02_sfnt_off00012a3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A3B 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3