Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c2e6fb62f409568…

MALICIOUS

PDF

93.6 KB Created: 2021-05-14 15:56:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d8c42516d8c4dba983f9ca95d1fc767a SHA-1: 7dcd33301ee59a5d42c544a1d08fbe0666d7d873 SHA-256: 1c2e6fb62f4095682b91d9bf5b27b3394142c5b5fc3ce6b52e04c55a1efb4ee1
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://xezojetit.ru/strik?utm_term=eragon+brisingr+summary PDF link annotation
    • https://cdn.sqhk.co/ruwiketi/ijn1DXj/beast_quest_ultimate_heroes_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/kimamena/ijdhcbp/35076657898.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463277/normal_6029d0d52076d.pdfIn PDF document text
    • https://cdn.sqhk.co/kozuvurop/kVghhiU/bloomz_student_login.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490754/normal_5fdf2045c1e64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390051/normal_602c5f3b1cc10.pdfIn PDF document text
    • https://cdn.sqhk.co/luzigagoguna/chbieii/download_strikers_1999_saga_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/rirexiwudag/gguhaig/45002663888.pdfIn PDF document text
    • https://cdn.sqhk.co/kevovevude/dgj86tG/6760556106.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417652/normal_5fe3c3d5783b8.pdfIn PDF document text
    • https://cdn.sqhk.co/lekusovu/ayZ1hi5/voice_recorder_iphone_6_free.pdfIn PDF document text
    • https://cdn.sqhk.co/zalenelavup/gQ3sgGv/acceder_a_mon_compte_icloud_sur_android.pdfIn PDF document text
    • https://cdn.sqhk.co/petebeki/cijigc5/viworulewaxu.pdfIn PDF document text
    • https://cdn.sqhk.co/savageven/jiggdKv/40893879625.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454824/normal_5fe1145d774a4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/ff65570c-abb7-48f8-9163-93a34329dab9/16518270797.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/city_of_bones.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b9aa9b0-ebab-4fa6-ac8c-a82834443b0b/how_do_i_check_my_audio_drivers_windows_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91c9bc37-9a62-4084-b3dd-5c434ffcbb88/17794555656.pdfIn PDF document text
    • https://s3.amazonaws.com/tuletivotarupu/hungarian_dance_no_5_accordion_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7170d796-f4cd-4720-9e5c-b314ba0e28aa/wagudafixovemukopitirexun.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001245f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1245F 4856 bytes
SHA-256: bba6b889e8e991ba23db052ebba13cc9be9e8778bef52d980886cc5e255b78ab
font_01_sfnt_off000134b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x134B6 11612 bytes
SHA-256: 6baf0b4e01c0eaf837542f44a778f3f2def4741218905f6e99da549f7b8ea622
font_02_sfnt_off00015b41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15B41 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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