Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e6807a8410b4729…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 15:35:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 24cd366ed40854cdb672f80553b895f9 SHA-1: a7692efe5e37ee657adc43cc3c54990984f227d7 SHA-256: 2e6807a8410b4729d9ba7a7c48a3ec66dd825d110d22a5ca90e24c2ad9e2d6e2
180 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to malicious infrastructure, specifically targeting users interested in game hacks and free in-game currency. The heuristic firings indicate that these links are designed to lure users into clicking on potentially harmful content. The presence of a raw IP address in one of the URLs further suggests malicious intent, as it bypasses domain name resolution for obfuscation. No scripts were extracted, but the document's structure and embedded links strongly indicate a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • 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
  • 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.tw/app/835599320/free-views-on-tiktok-game-hack In PDF document text
    • http://103.40.122.33/akasia/repository/hacked-roblox-accounts-list_GM431946152.pdfPDF link annotation
    • http://103.40.122.33/akasia/repository/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/dark-roblox-hacking_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/711-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-join-roblox-youtubers-games-hack_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-robux-by-inspecting-on-mac_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-free-promo-codes-vrp-madness_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-go-300-free-diamonds-on-roblox-royale-high_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/how-to-get-free-faces-on-roblox-ipad_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/comment-hacker-un-server-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/btools-hack-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-game-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-candy-decal-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-bandit-simulator-codes-new-hacker-update_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-hack-somebody-on-roblox-with-editthiscookie_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/cheat-codes-for-roblox-on-the-games_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_off00003229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3229 22980 bytes
SHA-256: 321e3cecc3a08ede20791df549de420528f0d2a6352cd22cb3edb61ab8c2b8cc
font_01_sfnt_off000065a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A6 18268 bytes
SHA-256: 333978ebd25e82ae210294bbdaaed74a75b144460baba76c2dc682ddc2fa357e

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