PDF malware analysis — malicious · f085f8dd2a0f904f

MALICIOUS

PDF

36.7 KB Created: 2021-07-04 12:17:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 32f781c3b568465a0e16004d0f2e45b0 SHA-1: 8f4676572652a0646dc29f112626ac7e24178f2c SHA-256: f085f8dd2a0f904ff18a6fbcb72350d30c49d099df70b760712f647d12439aba

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, disguised as game hacks and generators. The primary lure is a link to 'coin-master-unlimited-coins-hack-apk-download-game-hack', which points to a known malicious redirector. The document body and embedded URLs reinforce this lure, aiming to trick users into downloading potentially harmful content. No scripts were extracted, but the embedded URLs and the PDF's structure strongly indicate a phishing or social engineering attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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-unlimited-coins-hack-apk-download-game-hack In PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/how-to-make-a-roblox-aimbot-cheat_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/hacks-para-robux_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/oprewards-points-generator_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/free-not-fo-sale-roblox-templates_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/minecraft-free-reddit_GM479516143.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/hack-someones-account-roblox_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/roblox-cheats-for-robux-with-inspect_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/real-roblox_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/roblox-catalog-free-clothes_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/roblox-hide-and-seek-hacks_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/unlimited-robux-2021_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/roblox-gui-hacks_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/pokemon-go-free-and-verizon_GM1094591345.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
- http://acquacleanpiscinas.com.br/images/ckfinder/files/how-to-hack-roblox-account-to-delete-them_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_002_off0000377d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x377D	22764 bytes
SHA-256: `f533b3a63354db656074c1a4591b328bffa908f95cf571afec58f672ae83adaa`
`font_01_sfnt_off00006a23.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A23	19208 bytes
SHA-256: `ac8a1cc94d9adebce7336fc1630e3f53360c4b0eb9ab9d36c6a158ed54cc7f68`

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