Malicious PDF — malware analysis report

Static analysis result for SHA-256 10ef3760c27b0d90…

MALICIOUS

PDF

49.3 KB Created: 2021-06-02 17:40:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 81668621c506cac75819ee36e0610541 SHA-1: a52ae120ac55765804a4b8b56c46cd529128cd5f SHA-256: 10ef3760c27b0d908173585bc87f51eb17ee7c9b11eb6a832a87fa7fc7c6eebc
82 Risk Score

Malware Insights

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

The document exhibits characteristics of an advance-fee scam, using lures related to free game items to entice users to click on embedded links. The presence of multiple URLs pointing to similar content suggests a campaign distributing potentially malicious files or leading to phishing pages. No scripts were extracted, limiting the analysis to the document's content and external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • 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.
  • 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.xyz/app/431946152/free-cool-shirt-roblox-game-hack
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/free-hair-roblox-boy_GM431946152.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/free-robux-generator-2021_GM431946152.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/how-to-play-minecraft-for-free_GM479516143.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/free-minecraft-mods_GM479516143.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/free-spins-for-coin-master-app_GM406889139.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/roblox-free-download_GM431946152.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/free-minecraft-java-account_GM479516143.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/claim-free-spins-coin-master_GM406889139.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/minecraft-pe-hacks_GM479516143.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/minecraft-dungeons-free_GM479516143.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/coin-master-hacks_GM406889139.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/free-robux-no-human-verification-no-survey_GM431946152.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/how-to-get-free-robux-on-phone_GM431946152.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/free-robux-generator-no-survey_GM431946152.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/coin-master-free-spin-codes_GM406889139.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/ways-to-get-free-robux_GM431946152.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/how-to-hack-roblox-games_GM431946152.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/free-tiktok-accounts_GM835599320.pdf
    • http://elearning.mimcabangpurbalingga.com/__statics/gudangsoal/files/free-robux-without-downloading-anything_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005439.bin
83dbbfc3803f54dbc640d95dc3747d1c9d374e58d4a691b5a30c7867c97798ff		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5439 26512 bytes
font_01_sfnt_off00009286.bin
e49a868379cd3c37e631c5a53c010e21f38d803532a2b8417aee82315d4e8634		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9286 3500 bytes
font_02_sfnt_off00009e27.bin
2b518744c60e4af12bf5325cdbb207250d153ccc4526962a8ff21510b1267dab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E27 18340 bytes

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