Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f2200b73e672262…

MALICIOUS

PDF

36.3 KB Created: 2021-07-08 21:43:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 99d8ef35d769811644da1518e7a696ac SHA-1: ac9a36dbe03ff56abbbeb158fcf562f67b88ee40 SHA-256: 7f2200b73e672262e686efda3e410d0f248970efc62862d4b3db54dc92b6fa85
102 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which are SEO-optimized and related to game hacks and in-game currency. The ML classifier and PDF link farm heuristics strongly indicate malicious intent. The document body and extracted URLs suggest a lure to trick users into visiting potentially malicious sites for game exploits.

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.tw/app/431946152/roblox-how-to-get-free-robux-no-hacks-2021-game-hack
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-hack-robux-on-roblox-2021_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-kidding-2021_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/hacked-client-for-minecraft-bedrock_GM479516143.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-online-hack-no-survey-no-password_GM406889139.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-hack-no-verification-2021_GM406889139.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-survey_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/free-robux-that-actually-works_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-more-robux-for-free_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-may-11-2021_GM406889139.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-hack-stats-on-roblox-dbz_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/minecraft-hacks-wurst_GM479516143.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/bux-life-free-robux_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/teach-me-to-hack_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/today-free-spin-coin-master_GM406889139.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/redboy-roblox-cheat_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-shirts-on-roblox-mobile_GM431946152.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/free-coin-master-hacks-no-verification_GM406889139.pdf
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/roblox-black-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003534.bin
a0f9052c482f56a187ff74fded0bb64af5d0db56d43ed89850f35572b117f396		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3534 22332 bytes
font_01_sfnt_off00006712.bin
ddc97e758b846ee25b28667bc1a8f1d66392e693fdd4eed83586462065a797c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6712 19628 bytes

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