Malicious PDF — malware analysis report

Static analysis result for SHA-256 0acb902215010fa3…

MALICIOUS

PDF

77.1 KB Created: 2021-05-17 18:55:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 6c8af9ca029f2ec3c0a0b87d0645fe56 SHA-1: e9e4bf6aeea21704111cb0dcf33d8a21511078c5 SHA-256: 0acb902215010fa33c0a3b7b70ec4a893950c5beb988ad0532f541579c6a2f19
126 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains multiple external URIs, with a primary focus on 'https://jacksth.ru/strik?utm_term=how+to+adjust+wahl+magic+clip', suggesting a phishing or malware delivery attempt. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports the classification as a link farm for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jacksth.ru/strik?utm_term=how+to+adjust+wahl+magic+clip PDF link annotation
    • http://jaligovaw.iblogger.org/baseball_field_diagram_printable.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414332/normal_600ca0219035e.pdfIn PDF document text
    • http://ig-objectionform.com/pitigala63iqf.pdfIn PDF document text
    • http://myirn.icu/missing_411_hunters_documentary0y8lt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500429/normal_604f094a88e3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494429/normal_6065abb9ed0dd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417138/normal_6005d346e5dab.pdfIn PDF document text
    • http://tonerinkstore.com/jubumefetafopagopuxuwucrjk0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418791/normal_60250d92d7f45.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c63ca81c-6df4-4ec3-bc2e-8508f29a6879.filesusr.com/ugd/d48fe3_41c338e2183d45afb9e426bb0026e639.pdf?index=trueIn PDF document text
    • http://risexogukif.rf.gd/bittersweet_symphony_sheet_music_viola.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11a977d0-8979-4a76-a06c-95c432382e83/5315431178.pdfIn PDF document text
    • http://fidetilodekaser.epizy.com/14734700251.pdfIn PDF document text
    • http://nisuxukiw.epizy.com/silirifakowarudofojuburow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed27636b-5179-4b13-abd8-375afd246a7e/ama_a_dios_grandemente_miedo_y_ansiedad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca87e8e1-90ff-439b-ab2d-7dee5a7d86fc/pathoma_2019_videos_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/028b747d-cf12-4d47-bbbc-075cb0e37d34/clover_pos_system_for_sale.pdfIn PDF document text
    • https://0816b8db-db6e-4af9-a106-1766ff0f8d73.filesusr.com/ugd/06e6c8_9d10d088c7cb43efadfc1d13d5e24ec1.pdf?index=trueIn PDF document text
    • https://54957a25-093b-4cbd-a4f0-8eb5fea931f0.filesusr.com/ugd/8ba634_c83afd583df74df8914ef2eb0b919359.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d6efef3-4ff6-44b1-a74a-98bf77d1519a/lucky_jim_chapter_summary.pdfIn PDF document text
    • http://nitovotiroxe.epizy.com/29201679003.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_off0000e299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE299 5520 bytes
SHA-256: 38e7483189d0d0103763f787928b5e7a84c9444c687258b652c5512ae8b62375
font_01_sfnt_off0000f557.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF557 20212 bytes
SHA-256: 5a44479186afc70c6771164ba17e19ec5d006d6cfe4d5fa441ca13279cfd1b63

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