Malicious PDF — malware analysis report

Static analysis result for SHA-256 92e0e64deb3931ee…

MALICIOUS

PDF

44.1 KB Created: 2021-06-10 13:46:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b76dbc9fd62f639319248321c73e89d3 SHA-1: cd13831289d365da304256096107dfa44160df6a SHA-256: 92e0e64deb3931ee925e100b1c3f3e031efefa3f6d641d5792260aeffb3de2c0
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs and a visual call-to-action, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence. The document body, though partially corrupted, indicates lures related to popular games like Roblox and Minecraft, aiming to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/roblox-bc-for-free-2021-game-hack PDF link annotation
    • http://manfeld.dk/images/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/free-tiktok-likes-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • http://manfeld.dk/images/how-to-get-free-robux-and-tix-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/is-minecraft-free_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/free-dominus-userscriptorg-roblox_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/minecraft-free-version_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/roblox-login-make-a-free-account_GM431946152.pdfIn PDF document text
    • http://manfeld.dk/images/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://manfeld.dk/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://manfeld.dk/images/how-to-hack-roblox-accounts-on-phone_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
stream_004_off00004eb1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EB1 26316 bytes
SHA-256: 4f92590fe495829d442ca744f300153179682b3a481a50e6e55e084a9f284196
font_01_sfnt_off0000894f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x894F 18352 bytes
SHA-256: 51a2f421966cf7b0a4165c8997a245981a83a1d091678cb774e3c31d55b9af73

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