Malicious PDF — malware analysis report

Static analysis result for SHA-256 e036be7e2e6fbe47…

MALICIOUS

PDF

52.4 KB Created: 2021-05-31 09:25:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e26ccfcdc2a8ace5eccd754f3fda1c90 SHA-1: ab1e1abbcb9c8f0057c713b4552adb5da643e207 SHA-256: e036be7e2e6fbe47ecfa2c68c34adababa3e3104fc1e03cf37463a78e5dc7b3c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a prominent link to a website promising free Robux, a common lure for phishing or malware distribution. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of external links and the nature of the lure suggest an attempt to trick users into visiting a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8021

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 https://netcdn.xyz/app/431946152/how-to-get-free-robux-on-ipad-without-human-verification-game-hack PDF link annotation
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/freer-pro-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • http://thinkpro.ca/wp-content/uploads/fsqm-files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005cf2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5CF2 26508 bytes
SHA-256: f9c27d517363547d7b4a1a259a7926e4f967220f7dcd617de0fa34ac711a4b90
font_01_sfnt_off00009876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9876 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off0000a587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA587 19736 bytes
SHA-256: 2dea7b01375be240fe0a5e13f15a474480e97e410e2406ba0d13da609eaaf692