PDF malware analysis — malicious · bd6f102af6ad1088

MALICIOUS

PDF

45.1 KB Created: 2021-06-01 23:55:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: b38bcd0945133e7cce00d4ac54517e39 SHA-1: 2f19d1caab7a456d2d97fc768c75a97c2e202c81 SHA-256: bd6f102af6ad1088f15e664dfe7e390dcbfec5bafe907af23fc562d4db6de8c4

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses brand-impersonation credential phishing. 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 5

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.
Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH

Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/roblox-hacker-greg-game-hack.
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.xyz/app/431946152/roblox-hacker-greg-game-hack PDF link annotation
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/the-underground-war-roblox-cheats_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/redline-hack-roblox-download_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/base-wars-health-hack-roblox_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-robux-group_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/roblox-hack-kick-gui-juin-2021_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-robux-no-verify_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-roblox-hats-surveys_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-roblox-boy-hair-not-a-model_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-dino-hat-roblox_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/get-free-robux-nowcom_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-with-editthiscookie_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/how-to-look-like-myusernamesthis-in-roblox-for-free_GM431946152.pdfIn PDF document text
- https://porownywarkaleasingowa.pl/wp-content/uploads/fsqm-files/free-earn-robux_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
`stream_004_off000053a1.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x53A1	25792 bytes
SHA-256: `3dc90e65896c61d72211163845861c769a8d5ac814f211ebc66b02d2e9c63e2e`
`font_01_sfnt_off00008d19.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D19	18468 bytes
SHA-256: `25aa22958b72f915aaaf8fcf55a6ce2fada27b65d0fb157e795bf3c9c80f0451`

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