Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f49a27c17150a5b…

MALICIOUS

PDF

32.8 KB Created: 2021-07-01 04:07:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 708c396c900feaf1429a071afeed76bd SHA-1: c14840cdd62158706119a259971a0196f13aba41 SHA-256: 4f49a27c17150a5bb48fac737ca2ca9b445e33af63e5ffdf251b693bb23b7859
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains numerous embedded URLs, many of which are related to game hacks and cheats, suggesting a lure to download malicious content. The presence of a 'Payment redirection / bank-detail change lure' heuristic indicates a potential for financial fraud. While no scripts were explicitly extracted, the ML classifier flagged the PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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/top-ten-hackers-in-roblox-game-hack PDF link annotation
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/blueberry-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-no-survey_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/collect-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/cheat-buddy-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/roblox-cheats-and-secrets_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/roblox-hack-ninja-simulator_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/unpatchable-robux-hack-code_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/is-tiktok-app-free_GM835599320.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/real-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/static-moonactive-net_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/how-to-get-hair-free-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1sintang.sch.id/__statics/gudangsoal/files/you-tube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002bee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEE 21804 bytes
SHA-256: 7f10530ad95448775411364317016f2ee51846e6dfd0c3291166d6f4c0946492
font_01_sfnt_off00005c19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C19 18832 bytes
SHA-256: 0ee7d8729e556a4a3a80b53ef378e7e1f85f157ecc17981ac5420337cfbd03e2

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