PDF malware analysis — malicious · 9e3d41e93f8f58c4

MALICIOUS

PDF

43.4 KB Created: 2021-05-13 09:37:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11

MD5: a040431bee5def900a6c42ac65da4a15 SHA-1: 7babe7f75e7614582babec1ffe20944f0de3a704 SHA-256: 9e3d41e93f8f58c4719d0f0046757e0afa509fa1180c37f92eb25ffded2c74b2

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to lure users into downloading free game hacks and generators, ultimately redirecting them to malicious infrastructure. The document body and embedded links suggest a scam or phishing attempt, likely to distribute malware or steal credentials. No scripts were extracted, but the PDF structure and link farm indicate a malicious intent to drive traffic to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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-laptop-game-hack In PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/minecraft-pe-texture-packs-free-download_GM479516143.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/easy-robux-hack_GM431946152.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/how-to-add-mods-to-minecraft-pe_GM479516143.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/free-outfits-roblox_GM431946152.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/coin-master-hack-generator-tool_GM406889139.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/coin-master-free-food_GM406889139.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/free-robux-offers_GM431946152.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/free-spins-coin-master-march-2021_GM406889139.pdfIn PDF document text
- https://www.kofordconverting.com/uploaded_files/userfiles/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.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_off00004e5c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E5C	25260 bytes
SHA-256: `c0d306d203eae78275b0bff50294589d1dbfe3d108cd813e1c308234df4f4ec7`
`font_01_sfnt_off000086b7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86B7	18464 bytes
SHA-256: `6197069052dd1f902b9484e0bf6d7537b85552f28950007395536a6c9025e818`

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