PDF malware analysis — malicious · a03fef9b6d699ad0

MALICIOUS

PDF

42.8 KB Created: 2021-05-10 23:34:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16

MD5: f0a28ea3d7882ba9d61aaa9ae6a39caa SHA-1: 5dcd9ccd38b88d8fd15fb98ee37f1608a4608b13 SHA-256: a03fef9b6d699ad08ebaa59900941896e430111df62e94f194bf16eba5a3764f

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, masquerading as game hacks and free generators. The primary lure URL is https://netcdn.xyz/app/479516143/minecraft-free-download-iphone-game-hack. While no scripts were extracted, the PDF structure and embedded links strongly suggest a social engineering attack aimed at tricking users into visiting malicious websites, likely to download further malware or engage in scams.

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/479516143/minecraft-free-download-iphone-game-hack In PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-roblox-website_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-free-robux_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-minecraft-java-server_GM479516143.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/download-coin-master-hack-apk_GM406889139.pdfIn PDF document text
- https://discord.ggIn 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_off00004d38.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D38	24176 bytes
SHA-256: `6000ff1e858855ddba8401f2b855a0d6e4cbd467015f79fdf993b06914fe6507`
`font_01_sfnt_off00008400.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8400	18632 bytes
SHA-256: `69c9e1d53de598faa7eba3c7e7e0e0cf5fcd320a3cd8fa35101ea10459ac0f9f`

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