Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aaa7e3ab84d5bdf…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 14:46:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: b24159300258a306b55033fd67568ed1 SHA-1: 286b180c1d2c8fda4eefe3db0dd72f0c4321ae50 SHA-256: 8aaa7e3ab84d5bdf9de3d19673853c5fa83aa5cd7a537e6912e37d2acc123bc4
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/431946152/free-robux-no-survey-game-hack PDF link annotation
    • http://mtsn-baranti.com/perpus/repository/free-gear-roblox-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-long-shold-the-account-stealing-hack-on-roblox-last_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/assain-2-hack-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-military-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/1-000-subscriber-roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/offers-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-exploit-free-executor-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/can-you-get-your-roblox-account-hacked-from-friending-someone_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/pastebin-hack-robux-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/video-roblox-promotionx-codes-for-free-raimbow-wings-of-imagination_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-fan-hack_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-flood-escape-2-hacks_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/unlock-my-games-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-2021_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_off0000314c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x314C 22236 bytes
SHA-256: a5f88dc9687bf3e4833f84740c4672912008e0269e2a04608000ed858c16fbd3
font_01_sfnt_off000062d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D0 19012 bytes
SHA-256: 4e4ee538de79ec7e4a2325d57c934275716f5f92a64f1321ae55620a5fe6760f

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