Malicious PDF — malware analysis report

Static analysis result for SHA-256 7958957649a6cfb0…

MALICIOUS

PDF

32.6 KB Created: 2021-07-04 00:28:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 6a89c291d8c13ffd42e1a9675ec3754e SHA-1: 46f123dbf34296052376d35fbeedd98ec5a778b3 SHA-256: 7958957649a6cfb0e97cb83cdf47ed645dcc9568cc336145712026d374209351
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/479516143/get-minecraft-windows-10-free-game-hack PDF link annotation
    • http://mb-alati.hr/files/free-roblox-acc_GM431946152.pdfIn PDF document text
    • http://mb-alati.hr/files/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://www.mb-alati.hr/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://www.mb-alati.hr/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • https://www.mb-alati.hr/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://mb-alati.hr/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://www.mb-alati.hr/files/com-hackear-roblox_GM431946152.pdfIn PDF document text
    • https://www.mb-alati.hr/files/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://www.mb-alati.hr/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • https://www.mb-alati.hr/files/ive-been-hacked-on-roblox-what-now_GM431946152.pdfIn PDF document text
    • http://mb-alati.hr/files/free-rebirth-roblox-blob-simulator_GM431946152.pdfIn PDF document text
    • https://www.mb-alati.hr/files/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.mb-alati.hr/files/counter-blox-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.mb-alati.hr/files/free-roblox-accounts-2021-pastebin_GM431946152.pdfIn PDF document text
    • http://mb-alati.hr/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.mb-alati.hr/files/coin-master-free_GM406889139.pdfIn PDF document text
    • http://mb-alati.hr/files/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://mb-alati.hr/files/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://mb-alati.hr/files/apk-free-download-roblox_GM431946152.pdfIn PDF document text
    • http://mb-alati.hr/files/roblox-for-free-poki-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
font_00_sfnt_off00002bdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDF 21524 bytes
SHA-256: 055754e2c5a3b5b3abad246472b80d00114d1bb8395f212cc88281bd29c14302
font_01_sfnt_off00005ac8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC8 18812 bytes
SHA-256: 611e0fe8ef0e09460557208b470d6bb305c401f6b817a80b09e66ff1eb668ddb