PDF malware analysis — malicious · 1f96250d5a10e0cf

MALICIOUS

PDF

34.0 KB Created: 2021-07-04 12:40:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 257a26f8c6280f6cbb6b76fd706c74eb SHA-1: a95549a24d42512ed737c17283dc3ecca08afa25 SHA-256: 1f96250d5a10e0cf9dce811922b88f04bdf1dcd28082827fedc90ca0858da44d

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency or 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. The document's content and embedded URLs strongly suggest a phishing or scam attempt, likely related to popular online games.

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.tw/app/431946152/free-roblox-injector-game-hack In PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/microsoft-bing-robux_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-play-online-free_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/no-offer-needed-free-robux_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/how-to-use-cheat-engine-in-roblox-after-patch_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/roblox-free-no-download_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/roblox-glitch-site-free-robux_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/give-me-free-robux_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/free-coin-master-account_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-32-android-mod-hack-apk-download_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/robux-no-survey_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/how-to-get-robux_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-fan-hack_GM406889139.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00002e57.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E57	22312 bytes
SHA-256: `a52fdb76db5c3e637639ad5f41b042422d1b814676b134a7b112298f8267cbba`
`font_01_sfnt_off00005fe7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FE7	18944 bytes
SHA-256: `a46d9ddbb6334d284056799314f5e85b9d3b171abb92ec665d893bb118be9f5f`

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