PDF malware analysis — malicious · 56a649beb1e1c48b

MALICIOUS

PDF

35.2 KB Created: 2021-06-18 12:36:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 041f86ce8e357fd144277dcb160d283b SHA-1: e70a93e76a38828cac091683ca2017bc1fe9636e SHA-256: 56a649beb1e1c48bcaa4ae84131ddaf0d4eb1fe23f5f604cd800453b523a94c7

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains numerous embedded URLs and a document body that promotes game hacks and free in-game currency. The heuristic firings indicate a high likelihood of malicious intent, specifically related to linking to external content farms designed to lure users. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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/roblox-lumber-tycoon-hacks-game-hack PDF link annotation
- http://jbtlive.com/assets/CKImages/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/how-to-get-free-shirts-on-roblox_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/pokemon-go-free-download-game_GM1094591345.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/hack-roblox-download-and-install-deutsch_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/free-level-7-script-executor-roblox_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/roblox-sign-in-free_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/ro-ghoul-script_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/free-robux-with-fakename_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/cheat-engine-for-roblox-no-download_GM431946152.pdfIn PDF document text
- http://jbtlive.com/assets/CKImages/files/is-minecraft-free-on-mac_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
`font_00_sfnt_off00003221.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3221	22488 bytes
SHA-256: `662d9b5152b79e9ba970f4f1a58e91f9a81284b14210319372ce043cf000accb`
`font_01_sfnt_off0000642b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x642B	19236 bytes
SHA-256: `8801b639640dffd8ee01fc2725add229cd2a5b947024c7c9e0143a901c77b1ae`

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