Malicious PDF — malware analysis report

Static analysis result for SHA-256 95c6bf2f34db7376…

MALICIOUS

PDF

80.4 KB Created: 2021-03-09 12:31:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 58d7cc67913a6cef5c46cb3376bad66b SHA-1: 3e46d498860df35800fd50fac30df9b83b2ab3fc SHA-256: 95c6bf2f34db73765366aa7ce89ca2d9199db7ff8d357da39846a7f80d5f0acc
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'gimoguvi.ru', which is a strong indicator of a phishing or malware distribution attempt. The PDF structure itself does not contain readable content, but the presence of external links and the overall detection suggest it's designed to exploit users by directing them to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://gimoguvi.ru/123?utm_term=arm+cortex+a9+programming+guide PDF link annotation
    • http://tijijosopake.22web.org/xowovak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460251/normal_601094032efa0.pdfIn PDF document text
    • https://gejiwafut.weebly.com/uploads/1/3/2/6/132683005/4027641.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411926/normal_5fd7953ac5a5d.pdfIn PDF document text
    • https://vemenujobife.weebly.com/uploads/1/3/5/3/135399872/7893320da.pdfIn PDF document text
    • https://xodebizig.weebly.com/uploads/1/3/2/6/132681497/c617754baf9bb.pdfIn PDF document text
    • https://tepikibinaf.weebly.com/uploads/1/3/2/3/132303010/zeremobik-bofenuj-wajubugebuzuv-xosewubedadi.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/zusevamasor/direct_speech_activity_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1762477-e087-4a63-9139-21fc18aefa0e/how_to_search_images_on_google_by_size.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74b83726-66c6-430a-a033-1c00738eaea6/what_can_a_masters_in_public_administration_do_for_you.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/self_defense_definition.pdfIn PDF document text
    • http://bikowetekonama.epizy.com/sufumusavirim.pdfIn PDF document text
    • http://ligumawi.epizy.com/bullet_force_hack_ios.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/bypass_road_movie_480p.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0677c703-ced6-42ac-84c9-f6145ea9a9b4/what_to_get_someone_who_likes_to_paint.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/bubajobosurijelu.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_off0000f0c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C4 5396 bytes
SHA-256: dac2aaf9ad8008439e8ec4d83bb7195c4a2e2df3a720a0fce5e2dd1cba1de118
font_01_sfnt_off0001030f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1030F 15960 bytes
SHA-256: 005070fecb2cfc57a1bdf16d2f08a8ae9deec25ed06931515d3b0b8a03878583

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