Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ecb4116fb8f53f1…

MALICIOUS

PDF

35.4 KB Created: 2021-06-17 20:19:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ec1b360572484c9663628849db42a1ff SHA-1: 9851968538f05e098707db0e48d85c6850d6094d SHA-256: 2ecb4116fb8f53f19a15d99c9bc94a51055357f930a4c1eac184fc95efde93a7
102 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 and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/free-roblox-shirt-templates-2021-game-hack PDF link annotation
    • http://103.40.122.33/akasia/repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfPDF link annotation
    • http://103.40.122.33/akasia/repository/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-mod-hack-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-2021-android_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/get-robux-for-free-for-robloxcom-free4mobile24com_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-robux-hack-no-survey-no-password-no-download_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/hack-dragon-ball-z-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-can-i-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_off00003049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3049 23128 bytes
SHA-256: e445f2a931b92b9a1970be7441f4396f02652e15dd6b1db9cea0425ed83a81a2
font_01_sfnt_off00006371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6371 19692 bytes
SHA-256: 78688481c65da456aca7e8f6122fb5955eb0e5fff919c0d8561c7f1971c8f987

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