Malicious PDF — malware analysis report

Static analysis result for SHA-256 452b4da76159e801…

MALICIOUS

PDF

35.4 KB Created: 2021-06-19 09:35:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 987b3175b4ec46c197b03c7b2ab6585d SHA-1: c7f7eff6eb5a52679562a50e3732abd0455cc366 SHA-256: 452b4da76159e801b5808d438c8fd77424a3ccab539d2ec55e288cc7c8302088
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a prominent link in the body text, all related to obtaining free in-game currency or hacks for popular games. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests a potential download or redirection to a malicious site. While no scripts were explicitly extracted, the overall pattern indicates a phishing or scam attempt designed to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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 http://netcdn.co/app/406889139/coin-master-link-daily-get-free-spins-and-coins-game-hack
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/coin-master-hack-app-ios_GM406889139.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/minecraft-java-free-trial_GM479516143.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/hack-any-roblox-account_GM431946152.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/free-roblox-tix-generator-download_GM431946152.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/coin-master-free-link-spin_GM406889139.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/roblox-egg-farm-simulator-hack_GM431946152.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/roblox-dusk-hack_GM431946152.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/easy-robux-today-com_GM431946152.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/cheat-roblox-obby_GM431946152.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/minecraft-pe-free-ios_GM479516143.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/easy-free-spins-coin-master_GM406889139.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/free-robux-codes-generator-no-verification_GM431946152.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/roblox-freebies-com-hack_GM431946152.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/moonactive-free-spins-coin-master_GM406889139.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/how-to-get-free-coins-on-coin-master_GM406889139.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/pubg-uc-ykleme-hile_GM1330123889.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/free-minecraft-accounts-reddit_GM479516143.pdf
    • https://satuoblong.com/ckfinder/userfiles/files/billionaires-headphones-free-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032b7.bin
2084dabf4dc0c5a3fbdeeed2c6154583088945c055d5a9a813dd5e9c939f7dcb
pdf-font-stream PDF embedded font (sfnt) at offset 0x32B7 22876 bytes
font_01_sfnt_off000065ce.bin
d9392dacad98db9216379f9b4a8599f10de72e171ce5c8a49f19bc9c46ad428a
pdf-font-stream PDF embedded font (sfnt) at offset 0x65CE 18940 bytes