PDF malware analysis — malicious · f1b86f6847b84c9c

MALICIOUS

PDF

45.8 KB Created: 2021-06-09 08:48:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: e0556ebe9abe8de91e9868bab8557d80 SHA-1: 11ba187a8a626fafd9305d382c0133ba5add3e2a SHA-256: f1b86f6847b84c9cfce7cb17c9ad11eec00c09c5fc3f8056f9367abe4a5b5280

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for a game hack, directing users to a malicious URL. This URL is likely used to download a second-stage payload or redirect to a phishing page. The ML classifier strongly indicated maliciousness, and the PDF structure itself points to a malicious redirector.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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/roblox-lcoins-hack-game-hack PDF link annotation
- https://vissalutis.pl/wp-content/uploads/fsqm-files/va-a-ser-hackeado-roblox-en-2021-18-marzo_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-minecraft-capes_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/what-roblox-games-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/seraph-roblox-download-free_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-earn-robux-free-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/robux-us-robux-cheat-17_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/roblox-strucid-free-skin-code_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/android-cheating-tools-for-roblox_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/free-shirt-roblox_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/mod-roblox-hack_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/bloxpink-free-robux_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/can-i-get-roblox-hacks-as-a-google-extension_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/redline-cheat-roblox_GM431946152.pdfIn PDF document text
- https://vissalutis.pl/wp-content/uploads/fsqm-files/hacks-to-get-free-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_off0000526e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x526E	27360 bytes
SHA-256: `db820b0e5f6d4aea249e77be3c1675e6dbb062672437107c2a44b2cfffb654ed`
`font_01_sfnt_off0000905f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x905F	18300 bytes
SHA-256: `c5bfcf3f3a1d28558872ce0eb44c51b9d24d39f369ef24ac3764c7c22b8871c8`

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