PDF malware analysis — malicious · ff9a9f65277f6a6c

MALICIOUS

PDF

35.8 KB Created: 2021-06-27 23:42:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25

MD5: 7bea3b09de7ecbabc777df5c1be92021 SHA-1: 42be163df87b3d933e5c64fb4367879701d9db1e SHA-256: ff9a9f65277f6a6c96bd2b698613f8302593f5f475d88176f6a558e587919786

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links designed to lure users to external sites, including a known malicious redirector. The document body and heuristics indicate a scam related to game hacks and free items, likely intended to lead users to phishing or malware download pages. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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.co/app/431946152/how-to-get-the-galaxy-hair-for-free-in-roblox-game-hack In PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/hack-para-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/how-to-hack-roblox-with-an-injector_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/best-free-minecraft-server-hosting-reddit_GM479516143.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/coin-master-hack-tool-without-human-verification_GM406889139.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/does-the-roblox-hack-work_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/how-to-cheat-in-roblox-bee-swarm-simulator_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/free-roblox-games-that-you-dont-have-to-sign-in_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/dragon-ball-z-the-final-stand-roblox-hacks_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/how-to-hide-cheat-engine-for-roblox_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.harshulayurpharma.com/uploaded_files/userfiles/files/coin-master-2021_GM406889139.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
`font_00_sfnt_off0000340f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x340F	22384 bytes
SHA-256: `654808e9226e78361d9991de45b04de8094f1b8eeccd2e2f53aa502d9a6e061d`
`font_01_sfnt_off000065f1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65F1	19384 bytes
SHA-256: `0e80a99b824a7afc8718590b0c177316b3b38198a662988e2ae8c37f0b2b5e6f`

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