Malicious PDF — malware analysis report

Static analysis result for SHA-256 c69d8ff29b16fe9b…

MALICIOUS

PDF

43.6 KB Created: 2021-05-17 21:06:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 9be050c46d4beeb4eac53ad39c5356ff SHA-1: 403622badfac3c6bfc4c0eb935f5eee19b992d10 SHA-256: c69d8ff29b16fe9be83e83ecd69c1209f1369dbf3d8ddefd48ef9288f84d3532
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including one identified as a malicious redirector. The document body and heuristic firings indicate a lure related to game hacks and free in-game currency, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/roblox-sued-game-hack In PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/cone-master_GM406889139.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/spins-gratis-coin-master-hoy_GM406889139.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/coin-master-free-spins-link-today-ios_GM406889139.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/wurst-client-18-9_GM479516143.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/avatar-the-last-airbender-roblox_GM431946152.pdfIn PDF document text
    • https://citramandiribor.com/ckfinder/userfiles/files/free-robux-without-survey_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_003_off00004a5d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A5D 28480 bytes
SHA-256: 020994438e4f37c441d100ec7e400c10bbcd516454fd673a29a13faf8b888df3
font_01_sfnt_off00008892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8892 18100 bytes
SHA-256: ceb05d308fc17805291ab9e53434ca96f69a4d98ec9d0cd75399c721fdce8c16

Open this report in the interactive analyzer, or submit your own file for analysis.