PDF malware analysis — malicious · 869c104d3888691f

MALICIOUS

PDF

41.5 KB Created: 2021-07-03 21:36:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: dbfbc0caba421f0e9c544a830a1f87de SHA-1: 6992856744416664e998359ec3212f658a4dd900 SHA-256: 869c104d3888691fd904e7b0141072f07f5ec7c9ef1ccad607ba7fd8d9ea119e

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 0.9893

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-hack-online-generator-without-human-verification-game-hack PDF link annotation
- https://www.modestuae.com/uploaded_files/userfiles/files/robux-gift-card-redeem-free_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/www-roblox-cheatuscom_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/free-pe_GM479516143.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/app-for-pubg-uc_GM1330123889.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/minecraft-free-online-unblocked_GM479516143.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/cheat-roblox-jaibrach_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/case-clicker-coin-flip-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-hack-cydia_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/roblox-bux-free_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/hack-scripts-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/the-free-giveaway-obby-roblox_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/roblox-top-free-robux_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/roblox-abs-t-shirt-free_GM431946152.pdfIn PDF document text
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off00003e7d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3E7D	23600 bytes
SHA-256: `c68c4aaddc5f81108ecae9ea17af1c7890c643a53c1e2d86d878472a97ec6013`
`font_01_sfnt_off00007403.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7403	2896 bytes
SHA-256: `c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd`
`font_02_sfnt_off00007de8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7DE8	18976 bytes
SHA-256: `ec3f3fd648421e9123bdd39a340db4c5ce6d9db5f301fbf36d4352ad3d20d8aa`

Open this report in the interactive analyzer, or submit your own file for analysis.