Malicious PDF — malware analysis report

Static analysis result for SHA-256 63d5010b071db4fe…

MALICIOUS

PDF

33.2 KB Created: 2021-06-29 08:41:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 1234676851024aa97f324881d25bff20 SHA-1: c86b6fb1203ad061aa039bbce10c5f09081d1780 SHA-256: 63d5010b071db4fe02cf7c786e946d1928f51c782f4593b672d75ef26ebf331c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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/real-free-robux-codes-game-hack In PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/coin-master-generator-hack_GM406889139.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/descargar-roblox-hack-monedas-infinitas_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/hack-roblox-sin-virus_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/roblox-how-to-get-a-free-dominus_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/chrome-web-store-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/free-games-coin-master_GM406889139.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/roblox-jailbreak-hack-2021-september_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/i-got-hacked-in-roblox-lost-robux_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/top-free-commands-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/heroes-online-roblox_GM431946152.pdfIn PDF document text
    • http://www.adudubai.com/uploaded_files/userfiles/files/roblox-com-r_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B98 22284 bytes
SHA-256: 6ff0693dfcf37441508cbfc650d46d888decf0e33534a7eb2e1a4c5ccd112cdc
font_01_sfnt_off00005d40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D40 18964 bytes
SHA-256: 9bf96aa8fc5477a53da022985f8b40c56c69568a39855eae0c096d595955e7d3

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