Malicious PDF — malware analysis report

Static analysis result for SHA-256 58e6d5d9d5da8944…

MALICIOUS

PDF

34.5 KB Created: 2021-06-29 20:56:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 7e28f8d3912e7de5697a1b6e7642c57f SHA-1: 4f4b80a9985eb709c3364770dcd2c7275a20f014 SHA-256: 58e6d5d9d5da894456253ce4f1a50ce59c46d486931b47e65561a8257855cf8d
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs, with one identified as a known malicious redirector. The document body and embedded links promote a 'Roblox Hack' promising free Robux, which is a common lure for phishing or malware distribution. The presence of a visual download button further supports the malicious intent to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/roblox-hack-999.999-robux-no-verification-game-hack In PDF document text
    • http://katalog.ireyogya.org/repository/rbx-exchange-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-bad-buisness-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/bloxorz-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-cheat-engine-saber-war-level-up_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-base-raiders-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/earn-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-guuudinfo_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-link-daily_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-account-hacker-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-do-you-hack-roblox-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/everything-free-in-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-items-on-roblox-2021-catalog_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/download-roblox-robux-hack-v-35_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_off00002f6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6C 22228 bytes
SHA-256: 2b212abb9cc92bc44cddb043fe49f5294145df6fb33107511f1f2f10586536b0
font_01_sfnt_off000060ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60EC 19384 bytes
SHA-256: edd1f89f911da9431019bdf72ef98b1d4d748f208814668a6c67e7eec2d5e237

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