PDF malware analysis — malicious · acaeb5fbae41fc2d

MALICIOUS

PDF

34.0 KB Created: 2021-06-27 08:49:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 1596e988bd91259c9cf50407bf2da850 SHA-1: f57bf7ffaecd87dd71f2005688ba9e4d24c96201 SHA-256: acaeb5fbae41fc2d9d2a634a379c07e63d2232dbc2f9a37d25bee8d86a3655c5

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs that form a link farm, likely intended to direct users to download pages for game cheats or exploits. The document body and heuristics indicate a lure related to free game currency (Robux, Coin Master spins), suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, potentially leading to the download of further malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9824

Heuristics 4

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
External URI info PDF_URI

PDF contains an external URL action
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.co/app/431946152/promo-code-that-gives-you-free-robux-game-hack PDF link annotation
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/roblox-download-pc-free_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/cheats-for-roblox-on-androud_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/free-obc-robux-inspect-element_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/game-explorer-roblox-hack-pastebin_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/free-robux-creator_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/coin-master-free-pet-snacks_GM406889139.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/get-free-robux-today_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/counter-blox-roblox-offensive-hacks-download_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/free-coins-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/roblox-money-cheat-codes_GM431946152.pdfIn PDF document text
- http://www.indokashcrafts.com/uploaded_files/userfiles/files/free-robux-co_GM431946152.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_off00002b5b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2B5B	22412 bytes
SHA-256: `e8cde90d17b69eb8b4ad9f242badf708d40d1267fc7d265b80682fef8f6e6444`
`font_01_sfnt_off00005d73.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D73	19972 bytes
SHA-256: `449ef876a473b47667e12d07a95c8292f985cb653e2d25b5c345ed6f92ad7519`

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