Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bb9c020687ef56e…

MALICIOUS

PDF

50.2 KB Created: 2021-06-02 20:35:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d79c9cafa96559fa83c69b0d44a566ec SHA-1: cad15b30eb327ca679a46924f1559c752d90769b SHA-256: 6bb9c020687ef56ec5368b235a9f5436181808dee4c17f3658effc881d642f13
102 Risk Score

Malware Insights

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

This PDF document contains multiple embedded URLs and a document body that attempts to lure the user into downloading a 'free game hack'. The presence of external URIs and a machine learning classifier flagging the PDF as malicious strongly suggests it is designed to deliver a secondary payload. The heuristic indicating a 'password-protected archive handoff' further supports this, implying the downloaded content may be encrypted to evade initial security checks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9789

Heuristics 5

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/now-to-change-your-roblox-name-for-free-game-hack PDF link annotation
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/free-robux-hack-generator-no-survey-no-human-verification_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/cheat-aimbot-roblox-mdiafire_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/free-robux-come_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/assassins-creed-cheat-codes-roblox_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/is-it-easy-to-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/hack-roblox-cheat-engine-63_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/roblox-free-build_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/roblox-cheat-engine-use_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/roblox-dragon-ball-rage-hack-december-2021_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/free-tiktok-accounts_GM835599320.pdfIn PDF document text
    • http://test.xdialogue.nl/wp-content/uploads/fsqm-files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000555d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x555D 27732 bytes
SHA-256: 3aacab8dc72205e67aa58ff48ffe8afd414b8a1e8a96ed2168fca9a4527aaf7c
font_01_sfnt_off00009475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9475 2956 bytes
SHA-256: bab8933fc39dc331bc4c1c904a82b1432ab2e02478fa0a59453c98c5c231da8d
font_02_sfnt_off00009e94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E94 19356 bytes
SHA-256: 03887e5d7016eba3571a393c52b1e1d204084379abb6d74f5f2707335fda8427

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