PDF malware analysis — malicious · 88997ed669d3cde9

MALICIOUS

PDF

34.1 KB Created: 2021-07-09 18:34:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 66ba66cd227ea7d4e1a93a7050c9436c SHA-1: dd08db3d60f5fa895e56435f051c534d5872526a SHA-256: 88997ed669d3cde969051c4b7d3203aeac1db6002d7b7c207b8e5322a0ea778e

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains a prominent link disguised as a generator for free in-game currency and hacks for popular games like Coin Master and Roblox. The primary heuristic and the document body text indicate that clicking the embedded URL leads to a redirector. This suggests the document is designed to trick users into visiting a potentially malicious site, likely for further exploitation or credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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.tw/app/406889139/coin-master-free-spin-and-coin-links-game-hack PDF link annotation
- http://www.arichuna.com/images/files/reddit-free-roblox-clothes_GM431946152.pdfIn PDF document text
- http://www.arichuna.com/images/files/free-roblox-hair-to-wear_GM431946152.pdfIn PDF document text
- http://www.arichuna.com/images/files/roblox-cheat-exploit_GM431946152.pdfIn PDF document text
- http://www.arichuna.com/images/files/how-to-looks-good-for-free-in-roblox_GM431946152.pdfIn PDF document text
- http://www.arichuna.com/images/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
- http://www.arichuna.com/images/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
- http://www.arichuna.com/images/files/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
- http://www.arichuna.com/images/files/hack-minecraft_GM479516143.pdfIn PDF document text
- http://www.arichuna.com/images/files/free-robux-now_GM431946152.pdfIn PDF document text
- http://www.arichuna.com/images/files/how-to-hack-into-my-roblox-account_GM431946152.pdfIn PDF document text
- http://www.arichuna.com/images/files/bleu-hack-roblox-download_GM431946152.pdfIn PDF document text
- http://www.arichuna.com/images/files/coinmaster-rewards_GM406889139.pdfIn PDF document text
- http://www.arichuna.com/images/files/coin-master-hack-1021_GM406889139.pdfIn PDF document text
- http://www.arichuna.com/images/files/roblox-hack-account-ro-ghoul_GM431946152.pdfIn PDF document text
- http://www.arichuna.com/images/files/tiktok-followers-for-free_GM835599320.pdfIn PDF document text
- http://www.arichuna.com/images/files/how-to-hack-coin-master-computer_GM406889139.pdfIn PDF document text
- http://www.arichuna.com/images/files/coin-master-hack-here_GM406889139.pdfIn PDF document text
- http://www.arichuna.com/images/files/can-you-get-free-robux-on-cheat-enine_GM431946152.pdfIn PDF document text
- http://www.arichuna.com/images/files/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- http://www.arichuna.com/images/files/free-spins-coins-coin-master_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_002_off00002e59.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2E59	22948 bytes
SHA-256: `7527dc6f4c0f2e80232984f40d120049c5462775faf8a9dd359cfeba991a48ca`
`font_01_sfnt_off000061b9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61B9	18520 bytes
SHA-256: `d69a0a2edd95f9e38b96bcbf992a69ddda142703a71f9cfee81eaec1a075863f`

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