Malicious PDF — malware analysis report

Static analysis result for SHA-256 8278acae0e1ab104…

MALICIOUS

PDF

49.3 KB Created: 2021-06-09 17:23:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 14a355e67e7bec64d2a53e8629ec19fa SHA-1: e90407e12f6d2061647e42e554c6c29cdfb8ac9d SHA-256: 8278acae0e1ab104f07dca5ce6194117f08df136ccbb2ba1d5a025734f16607d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on luring users with promises of game hacks and free credits. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. While no scripts were explicitly extracted, the nature of the lures suggests a potential for JavaScript execution or redirection to malicious sites to deliver further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.
  • 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.tw/app/431946152/how-to-get-free-credits-on-breaking-point-roblox-game-hack PDF link annotation
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/pokemon-go-for-free_GM1094591345.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/free-roblox-characters_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/roblox-person_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/how-can-you-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnbatang.sch.id/__statics/gudangsoal/files/coin-master-official-website_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005503.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5503 27064 bytes
SHA-256: d85d61cda415e53a7a7aa82334cc16cd1a40d419fed15cfd659bae887d16e618
font_01_sfnt_off000090f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F7 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00009aa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AA8 19348 bytes
SHA-256: d335796673e63a1eca89e7cb822af11284da9b592217edd4009f03d337008c13

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