Malicious PDF — malware analysis report

Static analysis result for SHA-256 8068a3b6eef2fac4…

MALICIOUS

PDF

43.4 KB Created: 2021-05-15 23:33:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c88b31349dc91b3ce5379510c9b50d93 SHA-1: d1425dc122fcb9dfea0cfe19e8200caac931cac4 SHA-256: 8068a3b6eef2fac47bbe8ffce456ca8a82fb51919882b5abebe29065a57fe783
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains multiple lures for free in-game currency and items, directing users to external URLs and IP addresses hosting related PDF files. The ML classifier strongly flagged this PDF as malicious, and the presence of URI heuristics indicates an attempt to redirect users to malicious content. The document body and extracted URLs suggest a scam aimed at tricking users into downloading software, likely malware, under the guise of game cheats or hacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/how-to-get-free-robux-without-downloading-apps-2021-game-hack
    • http://118.174.0.244/UserFiles/File/minecraft-apk-download-v1-144-2-free_GM479516143.pdf
    • http://118.174.0.244/UserFiles/File/kuso-icu-roblox-hack_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-hack-dot-xyz_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-free-spins-1701-20_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdf
    • http://118.174.0.244/UserFiles/File/minecraft-wurst_GM479516143.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-download_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-roblox-injector_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-master_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/claim-free-robux_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/moonactive-free-spins_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-ad_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-gift-card-codes-2021_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-spins-in-coin-master-without-human-verification_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-hack-2021-apk_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-facebook-hack_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-hack-no-verification_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-free-spins-and-coins-for-today_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-hack-apk-35-13_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/free-minecraft-skins-girl_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004817.bin
8ca9e97057617aa2b323b27e53fe00d30a6696130cb949e244c2ec211619b58c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4817 25492 bytes
font_01_sfnt_off00008102.bin
dfaf102e4a8660aec521ea97dbe5e1677fef1ca2e266cad45ab84be3fc58cd38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8102 20276 bytes

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