Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee0c6fa905c5b3d6…

MALICIOUS

PDF

34.9 KB Created: 2021-07-09 11:18:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 6eea8c2ee2bf6fd7ef4fe1b8bde7d414 SHA-1: 302c0b47f13e8e5ceedaa43ef26d281dbff7588b SHA-256: ee0c6fa905c5b3d68e58305277b7a7ff04726b397d6dc31fe1594c9097bce24e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a prominent link disguised as a 'game hack' or 'free spins' generator, which is a common lure for phishing or malware distribution. This link redirects to known malicious infrastructure. The ML classifier also flagged this PDF with high confidence, indicating malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-free-spins-2021-no-human-verification-game-hack In PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/how-do-i-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/coin-master-free-spins-save_GM406889139.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/roblox-g_GM431946152.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/how-to-get-free-robux-from-roblox-games_GM431946152.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/minecraft-free-download-android-apk_GM479516143.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/robux-link_GM431946152.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/wie-kann-man-free-robux-kriegen_GM431946152.pdfIn PDF document text
    • http://pet.nfe.go.th/petnfe/userfiles/files/roblox-group-free-robux_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_off00002faf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAF 23012 bytes
SHA-256: f26dee1f47c83e24484c51fa731684d99c90791166c326172eb05f14c9a76914
font_01_sfnt_off0000631b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x631B 19112 bytes
SHA-256: fb4821b270f07fea72f4a01c6c2f5a9088defca8ace128bd60f9e0b10e4ff732

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