PDF malware analysis — malicious · e5913d598deb5d91

MALICIOUS

PDF

50.7 KB Created: 2021-06-08 11:16:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: 19421801f1091ace3fef249b8e1ed3f1 SHA-1: 6a1e57d3c3d317edb83c8a6504dd7d144e063c07 SHA-256: e5913d598deb5d913ce0d633200fbf1d794c4052a5d5d3ad1a3b5ed2652fbb96

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appear to be game-related hacks or generators. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. The document's content and heuristics strongly suggest it is part of a social engineering campaign to redirect users to potentially harmful websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9779

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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 https://netcdn.tw/app/431946152/roblox-script-executor-free-dd-game-hack In PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/instantrobux_GM431946152.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
- http://elearningman2jember.com/__statics/gudangsoal/files/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
- http://elearningman2jember.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/blox-rewards_GM431946152.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/roblox-free-items_GM431946152.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/how-to-get-tiktok-free-fans_GM835599320.pdfIn PDF document text
- http://elearningman2jember.com/__statics/gudangsoal/files/free-roblox-characters_GM431946152.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://elearningman2jember.com/__statics/gudangsoal/files/robux-apk_GM431946152.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://elearningman2jember.com/__statics/gudangsoal/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
- http://elearningman2jember.com/__statics/gudangsoal/files/how-to-change-your-username-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005225.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5225	29112 bytes
SHA-256: `a9b261bc647695952e45e3f9928d074ea8a34bb398a676796e4ce1a77463bf17`
`font_01_sfnt_off0000955a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x955A	3884 bytes
SHA-256: `40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf`
`font_02_sfnt_off0000a202.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA202	18828 bytes
SHA-256: `d75873ffa376653f33735141810ecc759a927f1b3efaab1a042d16b2f5a7db8f`

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