PDF malware analysis — malicious · 5ba48e340b1a0849

MALICIOUS

PDF

43.1 KB Created: 2021-05-11 22:14:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22

MD5: eee98e407359c6ac67a2f58f5370fa4f SHA-1: 8019b54ec94e47c3ecd4b33c4d0fa7393ea0eafa SHA-256: 5ba48e340b1a0849b203a4c9b2c3e7a65f12927f5c8749385c7baef2412c6477

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to malicious redirectors and SEO link farms, masquerading as generators for game hacks and free currency. The primary lure directs users to `https://netcdn.xyz/app/431946152/https-oprewards-com-roblox-game-hack`, which is associated with known malicious infrastructure. The document body, though partially obfuscated, contains references to these lures and the malicious URLs, indicating a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/https-oprewards-com-roblox-game-hack In PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/free-gifts-coin-master_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/coin-master-hack-tool-exe_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/spins-coin-master_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/coin-master-real-free-spins_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/static-moonactive-net-rewards_GM406889139.pdfIn PDF document text
- https://learningma.alkautsarkrw.web.id/__statics/gudangsoal/files/free-spins-on-coin-master-link_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
`stream_003_off00004b61.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B61	24708 bytes
SHA-256: `5bd37117865a778771686bc434691aaa9d0ff81afb79a0f917ac98a330d159d2`
`font_01_sfnt_off00008418.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8418	18892 bytes
SHA-256: `7e4c897599b52b27b34daba7b0b8f8cea9db697bcd5ec7a1354cddc2b7f16f3b`

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