Malicious PDF — malware analysis report

Static analysis result for SHA-256 12b0422b7e4519f8…

MALICIOUS

PDF

50.5 KB Created: 2021-05-11 04:08:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 47371042725512b3866115a15da648f5 SHA-1: c91a6c75ee0c4feb9d2735117f3aa77493e2d0a9 SHA-256: 12b0422b7e4519f8ab66edce49f2a4c8e3e82f7cfa5913b15ed6c9ffc039fe6d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to external websites. One prominent URL, https://netcdn.xyz/app/431946152/roblox-hacked-accounts-list-game-hack, suggests a lure related to game accounts. The presence of a visual download button lure (SE_DOWNLOAD_BUTTON) further supports the intent to trick users into navigating to these malicious links. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8594

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 https://netcdn.xyz/app/431946152/roblox-hacked-accounts-list-game-hack
    • http://library.smpn2-byl.sch.id//repository/free-roblox-codes_GM431946152.pdf
    • http://library.smpn2-byl.sch.id//repository/free-minecraft-skins-xbox-one_GM479516143.pdf
    • http://library.smpn2-byl.sch.id//repository/how-to-get-real-robux_GM431946152.pdf
    • http://library.smpn2-byl.sch.id//repository/free-robux-accounts_GM431946152.pdf
    • http://library.smpn2-byl.sch.id//repository/coin-master-latest-version-hack_GM406889139.pdf
    • http://library.smpn2-byl.sch.id//repository/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdf
    • http://library.smpn2-byl.sch.id//repository/free-robux-no-human-verification-or-survey_GM431946152.pdf
    • http://library.smpn2-byl.sch.id//repository/coin-master-free-spins-iphone-2021_GM406889139.pdf
    • http://library.smpn2-byl.sch.id//repository/how-to-get-free-robux-2021_GM431946152.pdf
    • http://library.smpn2-byl.sch.id//repository/free-spin-link-for-coin-master_GM406889139.pdf
    • http://library.smpn2-byl.sch.id//repository/free-robux-earn_GM431946152.pdf
    • http://library.smpn2-byl.sch.id//repository/coin-master-free-chest-link_GM406889139.pdf
    • http://library.smpn2-byl.sch.id//repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdf
    • http://library.smpn2-byl.sch.id//repository/free-robux-websites-that-work_GM431946152.pdf
    • http://library.smpn2-byl.sch.id//repository/coin-master-daily-free-spins-link-2021-today_GM406889139.pdf
    • http://library.smpn2-byl.sch.id//repository/free-spins-coin-master_GM406889139.pdf
    • http://library.smpn2-byl.sch.id//repository/free-coins-coin-master-link_GM406889139.pdf
    • http://library.smpn2-byl.sch.id//repository/how-to-get-a-refund-on-roblox-2021_GM431946152.pdf
    • http://library.smpn2-byl.sch.id//repository/coin-master-hack-without-verification-code_GM406889139.pdf
    • http://library.smpn2-byl.sch.id//repository/coin-master-hack-iphone_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004935.bin
3c63c93924296425b3c5e65a0936958f1fd51b69220732d64e6a9a9c3f4a1e5d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4935 27552 bytes
font_01_sfnt_off000087b2.bin
40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87B2 3884 bytes
font_02_sfnt_off00009454.bin
450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9454 5696 bytes
font_03_sfnt_off0000a166.bin
fc7b133a6c1dcbd831a87427d92a14fbfb4bbc577a85d8c62e04ee2ff9906700		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA166 18720 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.