Malicious PDF — malware analysis report

Static analysis result for SHA-256 f061a1f588c22e67…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 01:42:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4f0a899b892c1837fbc28f20b837f886 SHA-1: 0958239260de1faa505804fbace29618f52ff067 SHA-256: f061a1f588c22e6762f25eca2623a4d1e7a4e4cb1b56d1ebbb2d523cd8ba539a
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a document body that promotes free game items and hacks, strongly suggesting a phishing or scam lure. The ML classifier also flagged this PDF as malicious. The presence of external URIs indicates an attempt to redirect the user to a malicious site or download a payload.

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.tw/app/406889139/free-spin-in-coin-master-game-hack
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-ios_GM406889139.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/coin-master-claim-free-spins_GM406889139.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/roblox-army-free-robux_GM431946152.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-coin-links_GM406889139.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/roblox-blue-adidas-shirt-free_GM431946152.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/hack-coin-master-2021-pc_GM406889139.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/roblox-hack-tool_GM431946152.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/buy-free-items-roblox_GM431946152.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/moonactive-coin-master-free-spins_GM406889139.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/free-coins_GM406889139.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/redeem-roblox-card-free_GM431946152.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/coin-master-spin-link-today_GM406889139.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/roblox-hack-pastebin-2021_GM431946152.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/coinmaster-free-cards_GM406889139.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/google-coin-master-free-spins_GM406889139.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/mediafire-hack-30-robux-gratis_GM431946152.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/roblox-account-stealing-hack-by-kingtennisbal_GM431946152.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/hack-coin-master-for-iphone_GM406889139.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/free-robux-without-verification-or-survey_GM431946152.pdf
    • http://www.kbmmtsn1kabserang.sch.id/__statics/gudangsoal/files/minecraft-wurst-client_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034d6.bin
ec0c03e039c800f92e6b1b775d012de6f69c108e2af8a6fc4c612690778f9e27
pdf-font-stream PDF embedded font (sfnt) at offset 0x34D6 22256 bytes
font_01_sfnt_off0000664e.bin
71b70257de5307608e837e84baf22dba423b8b66b5dab801bbeeadacf24eb5d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x664E 18176 bytes