Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0b73eab1b594c0c…

MALICIOUS

PDF

43.3 KB Created: 2021-05-16 03:34:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: edc482c6da71c75b70b1657e8c01db01 SHA-1: 46d5999cb09cb556db51da5dce65d5db94d94108 SHA-256: d0b73eab1b594c0c5e755fc71b5a20e277ef0d5750c571692dd58de59ccf8853
82 Risk Score

Malware Insights

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

The PDF document contains lures for free in-game currency and hacks, directing users to download files from external URLs. The ML classifier strongly indicates maliciousness, and the presence of multiple links to potentially malicious PDFs hosted on an IP address suggests a downloader or exploit delivery mechanism. The document body and extracted URLs indicate a phishing attempt to trick users into downloading further malware.

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-do-you-get-free-robux-without-paying-game-hack
    • http://202.182.59.89/perpus/repository/how-do-u-get-free-robux-2021_GM431946152.pdf
    • http://202.182.59.89/perpus//repository/village-3-coin-master_GM406889139.pdf
    • http://202.182.59.89/perpus/repository/coin-master-card-hack-2021_GM406889139.pdf
    • http://202.182.59.89/perpus/repository/minecraft-gun-games-free_GM479516143.pdf
    • http://202.182.59.89/perpus//repository/roblox-speed-hack_GM431946152.pdf
    • http://202.182.59.89/perpus//repository/get-free-robux_GM431946152.pdf
    • http://202.182.59.89/perpus/repository/robux-com-free-robux_GM431946152.pdf
    • http://202.182.59.89/perpus//repository/earn-free-robux-today_GM431946152.pdf
    • http://202.182.59.89/perpus/repository/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://202.182.59.89/perpus//repository/how-to-get-free-roblox-money_GM431946152.pdf
    • http://202.182.59.89/perpus/repository/how-to-get-free-robux-2021_GM431946152.pdf
    • http://202.182.59.89/perpus//repository/how-to-get-roebucks-on-roblox_GM431946152.pdf
    • http://202.182.59.89/perpus/repository/cute-free-stuff-on-roblox_GM431946152.pdf
    • http://202.182.59.89/perpus/repository/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdf
    • http://202.182.59.89/perpus/repository/coin-master-spins-hack_GM406889139.pdf
    • http://202.182.59.89/perpus/repository/how-to-get-free-spins-in-coin-master-2021_GM406889139.pdf
    • http://202.182.59.89/perpus//repository/free-minecraft-accounts-2021_GM479516143.pdf
    • http://202.182.59.89/perpus/repository/free-games-like-roblox_GM431946152.pdf
    • http://202.182.59.89/perpus/repository/how-to-get-hacks-on-roblox_GM431946152.pdf
    • http://202.182.59.89/perpus/repository/blogger-coin-master-free-spins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047d5.bin
9ef52c19be6767fe1660efe7b489b5e00753ea48812156b19cc93a1a094b27b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47D5 25032 bytes
font_01_sfnt_off00008225.bin
5d1001e3ac77277796354ae1628373f4f4a3ba3fa344903a86c4555bafe1b783		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8225 19948 bytes

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