Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f4cb67e3c612f05…

MALICIOUS

PDF

34.2 KB Created: 2021-07-01 15:15:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4995c4fef8c27f960b3d53fcf27f27c6 SHA-1: 75609643c8cbd726ca159243e2de80705a3cdf1e SHA-256: 2f4cb67e3c612f05fa21096a730bf75158ba0075c32daaceeeb9d345cf34e920
62 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which are related to game hacks and cheats, suggesting a lure for users to download potentially malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a visual download lure further supports this assessment. The document's primary function appears to be directing users to external sites for illicit game modifications.

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/431946152/admin-on-cheat-engine-roblox-game-hack
    • https://morishita-tc.com.tw/image/data/files/greasy-fork-roblox-hack_GM431946152.pdf
    • https://morishita-tc.com.tw/image/data/files/is-free-robux-real_GM431946152.pdf
    • https://morishita-tc.com.tw/image/data/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdf
    • https://morishita-tc.com.tw/image/data/files/how-to-get-hacks-on-minecraft_GM479516143.pdf
    • https://morishita-tc.com.tw/image/data/files/where-can-i-get-free-coins-for-coin-master_GM406889139.pdf
    • https://morishita-tc.com.tw/image/data/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://morishita-tc.com.tw/image/data/files/hey-google-how-do-you-get-free-robux_GM431946152.pdf
    • https://morishita-tc.com.tw/image/data/files/coin-master-mod-version-free-download-v344_GM406889139.pdf
    • https://morishita-tc.com.tw/image/data/files/how-to-get-unlimited-robux_GM431946152.pdf
    • https://morishita-tc.com.tw/image/data/files/free-robux-no-verify-2021_GM431946152.pdf
    • https://morishita-tc.com.tw/image/data/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
    • https://morishita-tc.com.tw/image/data/files/roblox-getting-hacked_GM431946152.pdf
    • https://morishita-tc.com.tw/image/data/files/hack-coin-master-game-apk-download_GM406889139.pdf
    • https://morishita-tc.com.tw/image/data/files/how-can-i-get-free-robux-super-easy_GM431946152.pdf
    • https://morishita-tc.com.tw/image/data/files/free-spins-for-coin-master-hack_GM406889139.pdf
    • https://morishita-tc.com.tw/image/data/files/coin-master-free-pet-food_GM406889139.pdf
    • https://morishita-tc.com.tw/image/data/files/free-minecraft-mods-for-ps4_GM479516143.pdf
    • https://morishita-tc.com.tw/image/data/files/how-to-get-roebucks_GM431946152.pdf
    • https://morishita-tc.com.tw/image/data/files/get-free-robux_GM431946152.pdf
    • https://morishita-tc.com.tw/image/data/files/how-to-get-free-robux-without-email-address_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f22.bin
a2be0c5e9284ffc6bd16f767c52ac23762efc953269122576539d51bce1a6f36
pdf-font-stream PDF embedded font (sfnt) at offset 0x2F22 22152 bytes
font_01_sfnt_off00006001.bin
14ea79c422314248ca07c4c1436eddceee477c4d04d332d523e2bf2da02e03a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6001 19312 bytes