Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c7cc92fe09022b3…

MALICIOUS

PDF

33.3 KB Created: 2021-07-03 18:55:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: bf9ab1c2e38c416eb4a49104324ca12c SHA-1: 1e49f9b3c6f5061b38baef3a97affeb6d7c2d31f SHA-256: 5c7cc92fe09022b3e0f9e1886b42da9686c92ec7d3e183f72af205e91a1fa9d6
62 Risk Score

Malware Insights

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

This PDF document contains numerous embedded URLs and a call-to-action phrase, strongly suggesting a lure to download malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The document's content and embedded links point towards a scam related to game currency or hacks, likely leading to malware or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/431946152/demon-roblox-game-hack PDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/300-free-spins-coin-master_GM406889139.pdfPDF link annotation
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-roblox-exploit-spyro_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/download-apk-tiktok-free_GM835599320.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/hacker-escape-prison-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-cheating-sex_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/minecraft-roblox-games-free_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-free-catalog-hacks-thumbnail_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/cheats-for-titan-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/imperium-hack-roblox_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-generator-20212021_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/pubg-uc-code-redeem_GM1330123889.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/robux-generator-hack-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://103.68.2.77/__statics/gudangsoal/files/how-to-hack-a-roblox-user_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_001_off00002a7c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A7C 22868 bytes
SHA-256: e51a6fffaddda9b9e62e8107b9d9312ee37a3a5ff5ead320f677f923b1520718
font_01_sfnt_off00005db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB8 18912 bytes
SHA-256: a40cbd8e4481698280ba06ff7e008e34ec07e7992da08caf1feb739e7f80d510