Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bbc041323690884…

MALICIOUS

PDF

71.2 KB Created: 2021-04-28 13:17:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 2ae103cce500bb72df21cd861d598be4 SHA-1: 20fd0e64916dc23566ee2cbd2be07bfd325b4454 SHA-256: 8bbc04132369088403bb3f5f1d48d4611cf8006f7ec762c3d850573cdca6e52e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://fokemale.ru/strik?utm_term=how+to+put+decals+on+gel+nails PDF link annotation
    • http://sdfafq.info/brackets_punctuation_worksheetiiqye.pdfIn PDF document text
    • http://nutigunejome.22web.org/sigivemoxapojitewolesaro.pdfIn PDF document text
    • http://trendmobile.ru/39082426050vgvfj.pdfIn PDF document text
    • http://digitalmicroteter.xyz/kekovisamoxolofuke1owi5.pdfIn PDF document text
    • http://waystep.site/sri_lakshmi_stotram_in_englishevf5r.pdfIn PDF document text
    • http://chistohome.moscow/graco_snugride_30_assembly_instructionsq79g9.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/temujonuwu/boiler_control_system_engineering.pdfIn PDF document text
    • https://s3.amazonaws.com/bulikowexunepov/67876835368.pdfIn PDF document text
    • http://fisubilir.epizy.com/21985191170.pdfIn PDF document text
    • http://mixegudukega.epizy.com/54151935912.pdfIn PDF document text
    • http://vekamujibatebig.rf.gd/synthesizer_sound_effect_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/soundflower_mac_cycling_74.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/vivint_sky_panel_battery_change.pdfIn PDF document text
    • https://s3.amazonaws.com/welanisowari/roselu.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/48975092509.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_off0000d9d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D8 5200 bytes
SHA-256: 6ee21a07fd0495f00ae28ec4bbac71532598285e3ef8cb274d224b9fd532aa4c
font_01_sfnt_off0000ebab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBAB 10680 bytes
SHA-256: d5973257bbbd503fb3251887be2ba190a7e3f61957a1d65bf44065d4d1cac0f8