Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc9013c8f6252d5f…

MALICIOUS

PDF

48.4 KB Created: 2021-05-12 23:06:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: aeafb0d01eedeec347fb6d5fdd6a1e0e SHA-1: 8bc8ac12bb22eaf7cde9a6dec0e75d509fed2fc3 SHA-256: dc9013c8f6252d5f58ccc4be8a28d8b7363439ac6ffd91235149a3fa1d8e98d1
76 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • External URI info PDF_URI
    PDF contains an external URL action
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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/406889139/coin-master-strategy-game-hack PDF link annotation
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/how-to-get-minecraft-on-chromebook-for-free_GM479516143.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/minecraft-114-download_GM479516143.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/descargar-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/hack-coin-master-for-iphone_GM406889139.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/roblox-system_GM431946152.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/free-400-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.vsi.esdm.go.id/katalog/slims7_cendana-master/repository/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b55.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B55 26656 bytes
SHA-256: 54be386e7ce346667c4ab4f049cc1bf53c0d494283c356bbf63b49801b7c174f
font_01_sfnt_off0000889c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x889C 4092 bytes
SHA-256: 5f209d2de47fc1d1daa3f7a159899a6156681217a4da0d2c4432eb95998bf980
font_02_sfnt_off00009673.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9673 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off0000a062.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA062 18012 bytes
SHA-256: 2725a275d7a7b6911fa27290e512be704a3c63b9da69f1e3192c77e1806eef94

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