PDF malware analysis — malicious · 0ea088fb0c0f2525

MALICIOUS

PDF

34.3 KB Created: 2021-07-01 13:41:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31

MD5: d6074f32b4746b6f67ed33096de828c7 SHA-1: e15661be5648b4c228f4c16214ce9d869a3f6353 SHA-256: 0ea088fb0c0f252582abc31265757f78f958c186ed674be42b6d60a6eba342c2

260 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to lure users with promises of free game items and hacks, redirecting them to malicious infrastructure. The document body and heuristics indicate a phishing attempt, likely to deliver a second-stage payload or exploit. No scripts were extracted, but the embedded URLs and the nature of the lures suggest a phishing campaign.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 6

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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/op-rewards-free-robux-game-hack In PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/roblox-hack-booga-booga-download_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/coin-master-hack-link-2021_GM406889139.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/how-to-gfet-cheat-engine-to-work-with-roblox_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/free-roblox-gift-card-codes-2021-march_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/roblox-code-card-free-sin-verification_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/how-to-get-free-money-in-adopt-me-on-roblox_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/how-to-noclip-in-prison-life-roblox-no-hacks_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/roblox-hack-kohls-admni-house-script_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/games-that-will-actually-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/hacking-my-roomates-roblox-account_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/robux-apk_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/mcpe-free-download_GM479516143.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/roblox-free-admin-how-spawn-monster_GM431946152.pdfIn PDF document text
- https://www.indahkonveksi.com/ckfinder/userfiles/files/cute-free-stuff-on-roblox_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
`font_00_sfnt_off00002efb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EFB	22264 bytes
SHA-256: `45140f8de6fb0a2e8b284308dd6179e29980d3b45ed0cdc5ccb3718fa60e8612`
`font_01_sfnt_off00006044.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6044	19228 bytes
SHA-256: `88193be72d85b9c8494d9d96b6ede0bb60f73a66de9b6cc6b025526371ffb90a`

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