PDF malware analysis — malicious · e7860a93699f5e33

MALICIOUS

PDF

45.6 KB Created: 2021-05-15 02:41:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21

MD5: 3148979cfe35520c73a697a709a44d03 SHA-1: 585959935a26088dce1a5fd29fd0c863309e2269 SHA-256: e7860a93699f5e338effba2cf210aaf299b69b9745f5b20a8a2a02ce97469ca3

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to a malicious redirector infrastructure, specifically promoting 'game hacks' and 'free generators' to lure users. The document body and heuristics indicate a social engineering tactic to trick users into clicking these links, likely leading to further malicious content or downloads. No scripts were extracted, but the presence of embedded URLs and redirectors strongly suggests a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

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.
Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE

Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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/431946152/roblox-fly-hack-game-hack In PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/robux-get-com_GM431946152.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/coin-master-online_GM406889139.pdfIn PDF document text
- http://elearningmts.nurulfalahalhuda.com/__statics/gudangsoal/files/free-minecraft-account-list_GM479516143.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
`font_00_sfnt_off00004c1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4C1B	24680 bytes
SHA-256: `0f8f88d47ac86b6b49a5cbb81b4d6c873fe327556315ba806589739ba1768b89`
`font_01_sfnt_off000084f8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84F8	2956 bytes
SHA-256: `bab8933fc39dc331bc4c1c904a82b1432ab2e02478fa0a59453c98c5c231da8d`
`font_02_sfnt_off00008f18.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F18	18528 bytes
SHA-256: `48aa5298b09ebe1486756ea90f1095ff6b224374f32c9ff4b9ed1390be9ca915`

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