PDF malware analysis — malicious · 975a75b2ea918fc8

MALICIOUS

PDF

44.0 KB Created: 2021-06-11 09:23:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23

MD5: 160e4753ebd9cbed33008fd66d868895 SHA-1: 43ff19b791662192b713df6ca288779886b3e259 SHA-256: 975a75b2ea918fc81a8d7986c1db1bc3a98beedf72b60c5b9e7e24f1c60e6aa1

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/best-apocalypse-hack-roblox-game-hack PDF link annotation
- https://jdlgroup.ca/images/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
- https://jdlgroup.ca/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://jdlgroup.ca/images/free-unblocked-roblox-games_GM431946152.pdfIn PDF document text
- https://jdlgroup.ca/images/roblox-chucky-cheats_GM431946152.pdfIn PDF document text
- https://jdlgroup.ca/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
- https://jdlgroup.ca/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
- https://jdlgroup.ca/images/play-coin-master-online-free_GM406889139.pdfIn PDF document text
- https://jdlgroup.ca/images/free-robux-promo-code-gen-2_GM431946152.pdfIn PDF document text
- https://jdlgroup.ca/images/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://jdlgroup.ca/images/moon-active_GM406889139.pdfIn PDF document text
- https://jdlgroup.ca/images/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- https://jdlgroup.ca/images/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://jdlgroup.ca/images/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
- https://jdlgroup.ca/images/how-to-get-robux-fast-hack_GM431946152.pdfIn PDF document text
- https://jdlgroup.ca/images/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://jdlgroup.ca/images/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://jdlgroup.ca/images/free-coin-master-app_GM406889139.pdfIn PDF document text
- https://jdlgroup.ca/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
- https://jdlgroup.ca/images/inspect-hack-roblox_GM431946152.pdfIn PDF document text
- https://jdlgroup.ca/images/free-minecraft-accounts-2021_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_004_off00004e87.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E87	24932 bytes
SHA-256: `67f4e797da8d03ccc28a68b91d9c2dfa543ea5e1e46b4792c110e4ebf02a1a2c`
`font_01_sfnt_off0000881c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x881C	18640 bytes
SHA-256: `ddfec426c3a434e23bef4eb70207bcacfbbc181be24e77389fba4c9b9e41fbcd`

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