Malicious PDF — malware analysis report

Static analysis result for SHA-256 80a60e3b6ebc1bed…

MALICIOUS

PDF

34.4 KB Created: 2021-06-27 17:24:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 9f1d764c367b99d4928ec0b908b40248 SHA-1: 943b73c57fb326a5433d86145a0ff36b1dbf96e2 SHA-256: 80a60e3b6ebc1bedc8f770030d8a36c09718e42a290b6bf344cfabad541c3256
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, likely serving as a gateway to further malicious content or downloads. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/how-to-cheat-in-vampire-hunters-roblox-game-hack In PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/free-coins-and-spins-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/free-candy-roblox_GM431946152.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/youtube-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/how-to-get-a-hack-script-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/robux-hack-me_GM431946152.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/hack-roblox-games-without-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/how-to-have-free-robux-2021-and-exemple_GM431946152.pdfIn PDF document text
    • https://www.alloywheels.in/uploaded_files/userfiles/files/robux-generators-that-actually-work_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_off00002ea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA1 22500 bytes
SHA-256: 52dcba44c8b5eba7325f8a45347d6028fddb5c9fed8642c5651de059f25aad85
font_01_sfnt_off00005f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F84 19748 bytes
SHA-256: 1bc11b21036cbf2f27f3a7b20cb6ccb1b313e5616d6c079319fb0461d0f1e819

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