Malicious PDF — malware analysis report

Static analysis result for SHA-256 30c978a9bce094ef…

MALICIOUS

PDF

77.3 KB Created: 2021-02-16 04:08:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: f9bd12d2f6f17fa5a7f84c5c93857c23 SHA-1: 45542539d6b8eb04b7dceac80002fc820e4bcf64 SHA-256: 30c978a9bce094efd8d3647bb9b0dd6de99ee6cd66dd058ead32a4c7eb78317f
96 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics, including a high-confidence ML classifier and ClamAV detection as a phishing trojan. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic indicate an attempt to redirect the user to a malicious external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/strik?utm_term=bissell+proheat+2x+revolution+won%2527t+spray+water PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4403687/normal_60014ee2c04a4.pdfIn PDF document text
    • https://kusavavatixe.weebly.com/uploads/1/3/4/8/134878613/327326.pdfIn PDF document text
    • https://cdn.sqhk.co/zaperarori/gija1rn/menu_ideas_for_fall_luncheon.pdfIn PDF document text
    • https://cdn.sqhk.co/muvetowiripa/dqighhU/super_jungle_wild_slot_machine_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392872/normal_60168fbf15705.pdfIn PDF document text
    • https://cdn.sqhk.co/vawapisoxe/qZDjbaq/wusejodufiwasev.pdfIn PDF document text
    • http://detonic-romania.website/55729780501ld03z.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469375/normal_5fc8b5aae2254.pdfIn PDF document text
    • http://domen3.club/el_cuarto_camino_ouspenskyhsv2o.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456119/normal_5feeb9c5b68bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375885/normal_600c14f5a5697.pdfIn PDF document text
    • http://baltika-trans.com/video_irma_fuenlabrada_pensamiento_matematicoronsr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463002/normal_5ff27ab0e054a.pdfIn PDF document text
    • https://telidububiz.weebly.com/uploads/1/3/1/4/131452987/8d7f92c2.pdfIn PDF document text
    • http://zoomita.space/file_profile._dat_dls_17as4aw.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/lejivugeleguwod/windows_7_bootable_dvd_iso.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/happy_birthday_background_vector_free.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/guvexudutemikababuzil.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_off0000f341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF341 5444 bytes
SHA-256: 0e425c426f1e547158f08fb33789f0569da4bc371155c6a7ff00fe3e106b7f96
font_01_sfnt_off000105de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105DE 9940 bytes
SHA-256: 40e73a04b2a38d0fbff5968a1392a694017630e2a12c4b3f03c62f46dd825330