Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab3e3c09c26b05fb…

MALICIOUS

PDF

36.3 KB Created: 2021-07-05 00:12:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 060143d068db641bd6e40c7aca4d14d5 SHA-1: ad72d07f5d2591e61048505d1061f26f5cf65ce4 SHA-256: ab3e3c09c26b05fb605f65abf88e5f4a99fb8a21cecf403ad3db8504faa498f6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.tw/app/406889139/free-spins-for-coin-master-game-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/youtube-roblox-pokemon-brick-bronze-free-money-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/80-robux-a-day-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-accounts-roblox-passbin_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-accounts-2021-august_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-the-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-25-robux-for-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/pubg-uc-or-bp_GM1330123889.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-on-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/notoriety-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-free-asset_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/easy-robux-today-com_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
stream_002_off0000351c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x351C 23824 bytes
SHA-256: 3b80d619c41cf6ec1220dc9d603e04f93b7783096970960b5fe24d9adade5b4a
font_01_sfnt_off00006b21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B21 18432 bytes
SHA-256: ba2b1c803cf60430fecd3a4ea667911e0c566277fb0db9da711a2662cfde09a8

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