Malicious PDF — malware analysis report

Static analysis result for SHA-256 14b35714922c1a1f…

MALICIOUS

PDF

44.9 KB Created: 2021-06-09 05:40:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 64d5cccdbe3afc998fdddc9e29d44646 SHA-1: 71a8379d3ad6e50da567177546646a08d009e4ff SHA-256: 14b35714922c1a1f15ca5f95b3f9aa06de40eba52d8cfb5728a60ae598856d5f
82 Risk Score

Malware Insights

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

This PDF document is identified as malicious by an ML classifier and contains an external URI pointing to a potential malware download. The presence of a visual download button and an MFA lure suggests a phishing or credential harvesting attempt. The document's content, though obfuscated, appears to be related to game hacks, a common lure for malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • 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
  • 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.tw/app/431946152/fev-10-roblox-hack-game-hack PDF link annotation
    • http://ipdrs.org/images/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/freerobux-co_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-spin-appscoin-master_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/real-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005072.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5072 25724 bytes
SHA-256: 9eac8d59001ab23a4e72354ec32d61b7cdab3d2fb54f18f11d83b661b2a85d4e
font_01_sfnt_off00008b45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B45 18740 bytes
SHA-256: c931458cd666ac02bb1576405dcc1ddfa9563853dfe60af22c1a53caefa7bca6

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