Malicious PDF — malware analysis report

Static analysis result for SHA-256 a48940bb69a3609e…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 11:30:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7657af20b5837cb4a3cd8a9238385891 SHA-1: a7e5afcb5271cb76ab8e29127b45f27378b6f3a5 SHA-256: a48940bb69a3609ee8f75106cc61a32f2e30eabe732a995616797777b63b61ea
102 Risk Score

Malware Insights

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

This PDF document contains numerous links to external websites, many of which are SEO-optimized PDFs related to "Roblox hacks" and "free Robux". The presence of a "download button" lure and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. The document's primary purpose appears to be a lure for users seeking game cheats, likely leading to malware or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://netcdn.co/app/431946152/roblox-hack-jailbreak-free-game-hack PDF link annotation
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-hack-bee-swarm-simulator_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-robux-legit-no-survey_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-get-all-packages-for-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-teleport-cheat_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-hack-pour-passer-a-travers-les-murs-2021_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-check-if-roblox-account-is-hacked_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-robux-code-genrator_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/roblox-comandos-para-free-admin-para-que-parezcas-un-virus_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-get-free-builders-club-on-roblox-on-phone_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-robux-no-human-verfaction_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-robux-codes-club_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-robux-hack-2021-november_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-hack-linkmon99-on-roblox_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/inappropriate-roblox-hacks-download_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-get-superhero-body-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/how-to-kick-someone-on-roblox-using-cheat-engine_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/free-roblox-combat-scripts-for-studio_GM431946152.pdfIn PDF document text
    • http://mts.tapaksunan.sch.id/__statics/gudangsoal/files/hack-roblox-prison-miner_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000317d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x317D 22108 bytes
SHA-256: 6b1fcefa57915dc9cc1125faef3629ab59069d88bd22e54723f5f22a7f2504fe
font_01_sfnt_off00006270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6270 19104 bytes
SHA-256: 7c033fc3436643879aedd9a3b89c5cada35495fbb4a8b5eb33b75119e5f1ced0

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