Malicious PDF — malware analysis report

Static analysis result for SHA-256 67f5978fc093d09f…

MALICIOUS

PDF

35.8 KB Created: 2021-06-29 21:54:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8858df67f372c788e7336d59f7c5166e SHA-1: 9fb3e4366d32f36bfe3f3f7d73d5dedc6c8b540c SHA-256: 67f5978fc093d09fdbbebc3ef3a4a8058df4514cc79d78b239283c977513b72a
102 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which are related to game cheats and free in-game currency, suggesting a lure for users to download potentially unwanted or malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The presence of numerous external links and the document's content indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.co/app/431946152/cheats-on-roblox-game-game-hack
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-free-robux-without-paying_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/cheat-roblox-bad-business_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-free-spins-hack_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-earn-robux-on-roblox_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-hack-android_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/pokemon-go-free-8-bit-sprites_GM1094591345.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-free-spins--coins-2021_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-gold-cards-for-coin-master_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/install-coin-master_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/re-ghoul-roblox-cheat_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-hack-someone-in-roblox-2021_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/free-hacks-for-coin-master_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/how-to-get-unlimited-robux_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/roblox-script-executor-free_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/robux-free-gift-card_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/master-coin-free-link_GM406889139.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/robux-websites-that-work_GM431946152.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/pokemon-go-free-friend-codes_GM1094591345.pdf
    • http://elearningalislah.mialishlahtiudangondang.com/__statics/gudangsoal/files/coin-master-free-spins-coins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003535.bin
25ddc985f14f7879e8da2a8df5f3df40a44411768b486744750355f44c72bb5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3535 22348 bytes
font_01_sfnt_off000066e6.bin
bce02ccff6ce96337a7b744870d5f7f2a691bf9e21fbc44388605ae6c17765e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66E6 19016 bytes

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