Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff2be641ac9225d5…

MALICIOUS

PDF

67.1 KB Created: 2021-03-19 18:21:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c82ee58a77d292c6f1a1b3f44e718c23 SHA-1: 93363a2d7a4bae2082c056eceb5001d9a7bf40a6 SHA-256: ff2be641ac9225d5c556daa9056dfb85b3334bddf6f8a746671fdc2a3651f6fb
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://seumenha.ru/strik?utm_term=cateye+velo+7+price+philippines PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409621/normal_600e05989c0ea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371812/normal_5fcf308538785.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493201/normal_5ffe89105000b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370097/normal_6041bfa35084b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497658/normal_604b539a62659.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467576/normal_5fec5adbd76aa.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/petubapizo/maplestory_leveling_guide_luminous.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afe70969-e490-4484-9f90-f182d8e3275f/8002848891.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ff5bc05-ed99-4166-b077-8726b6612067/pojirimesoda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b7a338c-d1c4-418f-b8b0-b307928a5bdd/74139102707.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9e92a11-dc7b-4fc7-85d3-217fa97863f7/resetar_toner_brother_mfc_7360n.pdfIn PDF document text
    • http://bupojawepuda.epizy.com/notetenetasusub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8609230e-d3f1-4624-a538-64880ceef9f1/gujodejisibufitosajir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9003e83b-aaec-4f8a-a3ee-f5eecdb71c28/how_do_i_change_my_lg_refrigerator_water_filter.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/arrollado_primavera_informacion_nutricional.pdfIn PDF document text
    • https://s3.amazonaws.com/tometubufimopim/weather_report_for_jandali_ajk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0b4f3a3-b0ea-499b-9fd8-1651afbf1aa2/zoom_h4n_ext_mic_input.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5526e72-be51-43b8-a0ea-2b146a6e653b/16743009664.pdfIn PDF document text
    • https://s3.amazonaws.com/zubuwujoxom/duzibodidobazijubusinila.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a67ca32-0d39-4235-9c8c-15a5cefe06bf/36565208674.pdfIn PDF document text
    • http://dadinubu.rf.gd/tolamokax.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/90650243747.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_off0000caed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAED 5168 bytes
SHA-256: d0f38c24168b5fa7d5782f987b05ebd69c8e7fdfd3fdfc2e84e8cc8b1a8f7c21
font_01_sfnt_off0000dc8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC8A 10120 bytes
SHA-256: f92547087e6172da485328bbbbe748505363779a53e60ba93278310c4948acdf

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