Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e0e6175966ccb9b…

MALICIOUS

PDF

41.6 KB Created: 2021-05-13 13:10:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 789f8fe50819a8ace9957bf7872b919d SHA-1: abc15f5b07f7ecbd9059605dbd8c4c5052eac58e SHA-256: 1e0e6175966ccb9ba2d884177a8b20a25eb2cf449c21ef40f914eda9d39faf3e
122 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'free generator / game hack' and presents a fake CAPTCHA to trick users into clicking a link. This link leads to a malicious website that likely serves a second-stage payload. The presence of embedded URLs and the fake CAPTCHA lure strongly indicate a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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 https://netcdn.xyz/app/431946152/free-roblox-printables-game-hack PDF link annotation
    • http://ohsawamacrobiotics.com/images/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/clients-minecraft_GM479516143.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/coin-master-free-spins-16-04-19_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/roblox-font-free_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/get-robux-com_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/minecraft-114-download_GM479516143.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/how-to-sue-roblox_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://ohsawamacrobiotics.com/images/free-robux-now_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_off000048ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48CE 24064 bytes
SHA-256: 7f67aa26188970736857e3c41eb415000ba503fc46da80f69c06f6d59e20fe70
font_01_sfnt_off00007f2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2D 18552 bytes
SHA-256: 4229dcb1033c2214c22c2ce7fef2675aefed3814b9d932a68ba5770f56b27f64

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