PDF malware analysis — malicious · 4d1ed9b3ed2a0b50

MALICIOUS

PDF

42.0 KB Created: 2021-05-11 05:40:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26

MD5: 8738809a475f9e2d88efe3de892bc059 SHA-1: aef255c7c5366fe1f7b2b913c0830796f1eea2a7 SHA-256: 4d1ed9b3ed2a0b50951eb1cdbc17fc74a2d0f040dfb04de2519f4989daab9272

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are flagged as malicious redirectors, leading to sites that offer game hacks. The document body and embedded links suggest a lure for users seeking cheats or free in-game currency. No scripts were extracted, but the presence of malicious links and the lure indicate a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/mcpe-master-coin-hack-apk-game-hack In PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-robux-easy_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/give-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-without-waiting_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/descargar-coin-master-hack_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/minecraft-windows-10-mod-menu_GM479516143.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/best-hack-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/roblox-executor-free-download_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/how-to-get-unlimited-robux-2021_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/https-oprewards-com-roblox_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-minecraft-videos_GM479516143.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/minecraft-net-free_GM479516143.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/coin-master-free-coins-and-spins_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
`stream_003_off00004bbd.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BBD	24436 bytes
SHA-256: `a069eda48b14c29f9045d8c9337c9952bd1dfab383eb65cfa7829c7f0b260014`
`font_01_sfnt_off000082c0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82C0	17892 bytes
SHA-256: `df4699ad1f6ddac4a242edb3e57737628ee6aca47845cdea5c03b85425c35389`

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