Malicious PDF — malware analysis report

Static analysis result for SHA-256 869b8be77bfe3125…

MALICIOUS

PDF

81.8 KB Created: 2021-03-20 17:02:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2d689dd371fa18661960e72e646572f9 SHA-1: dd0d54eb95a9863f1cb1a4ef73b2bda0f46c2bb6 SHA-256: 869b8be77bfe3125641f3cc65ef0026cbce60653783c3a7cfc0c3158196f8506
176 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by a machine learning classifier and ClamAV as malicious. It contains heuristics indicating a lure to execute commands via the clipboard, a common tactic for downloading and executing second-stage malware. The embedded URL, https://mezovuduw.ru/wix?keyword=dos+commands+pdf+myanmar, is likely part of this download chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://mezovuduw.ru/wix?keyword=dos+commands+pdf+myanmar PDF link annotation
    • https://cdn.sqhk.co/wupefukawis/ijjf1gf/zatip.pdfIn PDF document text
    • http://pifanaliriwabo.mygamesonline.org/the_black_legion_40k.pdfIn PDF document text
    • https://cdn.sqhk.co/laruxibut/qhM3uhh/14401205055.pdfIn PDF document text
    • http://fujopijur.iblogger.org/sifojulupugelu.pdfIn PDF document text
    • https://cdn.sqhk.co/wesaduleb/zwhdmg1/beta_merge_battle_simulator_weapons_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/nomelafu/ajjidjf/electric_meter_reading_convert_to_kwh.pdfIn PDF document text
    • https://cdn.sqhk.co/vedanoderifu/djgjbhi/zoditediwidibozab.pdfIn PDF document text
    • http://fivepazako.22web.org/46088188535.pdfIn PDF document text
    • http://rezisekuvaz.mypressonline.com/lefamatetemu.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/debamijizozexo/alesis_nitro_kit_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/kinemaster_pro_for_pc_windows_10_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a8c1a03-807c-4214-91df-22d9e22e2014/w3schools_c_tutorial_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e650180-5b46-4554-b45f-d459174a1bd6/49997954653.pdfIn PDF document text
    • http://jozobudesurarab.onlinewebshop.net/how_to_tell_if_golf_cart_solenoid_is_bad.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/76969144053.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ba35af0-85a9-41f5-ab86-b8a66cf8cf30/97639859035.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/56923024998.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/5691022466.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/kutatamixene.pdfIn PDF document text
    • http://nigezedebojiwe.rf.gd/vujimebapo.pdfIn PDF document text
    • https://s3.amazonaws.com/gapuruxumeg/microsoft_project_classes_near_me.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/906f6f6e-bb5a-4464-a5f9-c50ea080ee12/tigavilokogoribodojegamas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f1d695f-c4bd-4ecc-b2f9-870f49f9d344/7837966678.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
    • http://scripts.sil.orgIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE033 5368 bytes
SHA-256: 8fe5aef9ddcf8dac3e4a35518f4b5d1da4760b0deec38fccfe3e078e60dee378
font_01_sfnt_off0000f271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF271 11496 bytes
SHA-256: cc0c28305d84b9999095ecc595b2eef7f4ccd64fe47ffcb7accb51d017e259f0
font_02_sfnt_off0001174f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1174F 10780 bytes
SHA-256: 4f9d32a586aec0991e5e6e835c632702d0e56f36f219b8cd8d97434e20101021

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