Malicious PDF — malware analysis report

Static analysis result for SHA-256 7098a79d8b8fc170…

MALICIOUS

PDF

251.2 KB Created: 2021-07-05 09:21:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0e04d41734c3cea8d17483181b144ef6 SHA-1: f74928be088b43a39ea9d68dfa9288ff16c083bd SHA-256: 7098a79d8b8fc170fc7fa21e8fff412625f42ab98695c78dfbf9cb1166b1089f
140 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a phishing or scam lure, including a fake CAPTCHA, advance-fee scam language, and a multi-factor authentication harvesting pretext. It contains an embedded URI pointing to 'http://netcdn.tw/app/1330123889/pubg-uc-myanmar-game-hack', which is likely the initial stage of a malicious download or redirect chain. The document's structure and content suggest it is designed to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier clean score 0.0098

Heuristics 7

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/1330123889/pubg-uc-myanmar-game-hack
    • http://perpus.poltekeskupang.ac.id//repository/rbx-earn_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/free-spins-coin-master-links-blogspot_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/100-free-spins-coin-master-2021_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/roblox-accs-free_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-hack-version-download-2021-android_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/best-legit-free-robux_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/roblox-cheat-codes-mining-simulator_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/paste-bin-robux-hack_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/roblox36com-free-robux_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/roblox-hack-free-download_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/roblox-hack-2021-free-robux-pastebin_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/easy-hack-to-get-halos-in-royale-high-roblox_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/roblox-hilton-hotels-interview-hack_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/roblox-exploit-download-2021-free_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-village-3_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/robuxian-com-free-robux-code_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/today-free-spin-link-for-coin-master_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/free-executor-roblox_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-hack-tool-no-human-verification_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_024_off00037f42.bin
76b1c06d3dfaf57b8da94361cdfa123ee076c1e7f11025e395277153af5c26f0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x37F42 25928 bytes
font_01_sfnt_off0003bc5c.bin
32a45a23f9028bb632ce97b2cb4d178fa0499b1e8a165d8a199ddacbafed9803		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3BC5C 18764 bytes

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