Malicious PDF — malware analysis report

Static analysis result for SHA-256 83a729abb5c24cef…

MALICIOUS

PDF

35.0 KB Created: 2021-06-19 13:00:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: de248469532976666a80371f3ac9ecb5 SHA-1: 6b47b297411f7697f761fdb45e22f363a94b6af3 SHA-256: 83a729abb5c24cef3207dfc6dbc423f6c937e3636fbfcf0783470312abb538c4
62 Risk Score

Malware Insights

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

The PDF document contains embedded URLs and a visual download button, strongly suggesting a lure to download a malicious payload. The document body references game cheats and hacks, indicating a social engineering tactic to entice users. The ML classifier also flagged this PDF as malicious with high confidence.

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/roblox-kicked-by-server-cheat-engine-game-hack
    • http://opac.salatiga.go.id/slims7//repository/coin-master-hack-without-verification_GM406889139.pdf
    • http://opac.salatiga.go.id/slims7//repository/play-coin-master-online-free_GM406889139.pdf
    • http://opac.salatiga.go.id/slims7//repository/roblox-hack-ga_GM431946152.pdf
    • http://opac.salatiga.go.id/slims7//repository/coin-master-free-coins_GM406889139.pdf
    • http://opac.salatiga.go.id/slims7//repository/coin-master-heaven_GM406889139.pdf
    • http://opac.salatiga.go.id/slims7/repository/free-robux-sites-that-work_GM431946152.pdf
    • http://opac.salatiga.go.id/slims7//repository/free-robux-gen_GM431946152.pdf
    • http://opac.salatiga.go.id/slims7//repository/coin-master-in-app-purchase-hack_GM406889139.pdf
    • http://opac.salatiga.go.id/slims7//repository/coin-master-unlimited-spin-hack_GM406889139.pdf
    • http://opac.salatiga.go.id/slims7/repository/roblox-hacked-version_GM431946152.pdf
    • http://opac.salatiga.go.id/slims7//repository/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://opac.salatiga.go.id/slims7//repository/coin-master-free-spin-and-coins-links_GM406889139.pdf
    • http://opac.salatiga.go.id/slims7/repository/hack-coin-master-8-ball-pool_GM406889139.pdf
    • http://opac.salatiga.go.id/slims7/repository/how-to-get-free-hair-in-roblox-2021_GM431946152.pdf
    • http://opac.salatiga.go.id/slims7/repository/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdf
    • http://opac.salatiga.go.id/slims7//repository/coin-master-free-spins-link_GM406889139.pdf
    • http://opac.salatiga.go.id/slims7//repository/roblox-play-as-guest-free_GM431946152.pdf
    • http://opac.salatiga.go.id/slims7//repository/how-to-buy-robux-for-free_GM431946152.pdf
    • http://opac.salatiga.go.id/slims7/repository/hacker-web-roblox-jailbreak_GM431946152.pdf
    • http://opac.salatiga.go.id/slims7//repository/hacks-to-get-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003066.bin
3c37bd825db5fd9b6b2e549d106b82ab7ba3ab0d38700e184d974c13295875f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3066 22476 bytes
font_01_sfnt_off00006270.bin
2fc18bd1d8e1e747d9f9cd5570796ffdeb792308e3119841b746e42581a7f7a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6270 19516 bytes

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