PDF malware analysis — malicious · fe4389a17a2d8cbb

MALICIOUS

PDF

34.9 KB Created: 2021-06-20 10:12:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: fc8a0ee041db6ebcef7a76d1fb9e25be SHA-1: 5ddfe7cbd8d5c043bf6a220b55315c0afa3abf43 SHA-256: fe4389a17a2d8cbb8dcd125f48a9caeb8b89275dbd2ff264ddbaa5e781a24b8f

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users with promises of game hacks and free in-game currency for popular games like Roblox and Coin Master. The primary link directs to a known malicious redirector, indicating a phishing or scam attempt. The document's content and structure strongly suggest it's part of a campaign to drive traffic to malicious sites, likely for further exploitation or credential harvesting.

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/does-free-r-here-in-roblox-actually-work-game-hack In PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/hacks-for-bit-slicer-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/free-100-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/pubg-uc-and-bp-hack_GM1330123889.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/coin-master-free-redeem-code_GM406889139.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/are-there-any-codes-to-earn-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/free-robux-instantly_GM431946152.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/free-robux-for-free_GM431946152.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-apk-2021_GM406889139.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/get-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsnkarawang.sch.id/__statics/gudangsoal/files/free-mod-apk-coin-master_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_off00003181.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3181	21896 bytes
SHA-256: `6bb3d0dd19182f920ace9f795dc31aa718cdb47ea36225abd7e32388498b1dee`
`font_01_sfnt_off000061d9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61D9	19612 bytes
SHA-256: `0cfe62445193dbf45118aa8c55d0bda55e9dc417c2617fb08293bb5b87935c5b`

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