PDF malware analysis — malicious · 0bdbb219124c8301

MALICIOUS

PDF

35.8 KB Created: 2021-06-22 23:00:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11

MD5: f7c0475c6511ba9764fed97403d5d374 SHA-1: 12aaf6fe01534317aec40f2b9d0f0afe738932fc SHA-256: 0bdbb219124c8301dabeb8f9a6e2d4161813ca1574605040feff952094b49aa5

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to lure users to external sites, including a known malicious redirector at http://netcdn.co/app/406889139/free-spins-and-coins-coin-master-app-game-hack. It also functions as a link farm, directing users to various PDF documents with SEO-optimized titles related to game hacks and exploits. The document's content and structure strongly suggest a phishing or scam attempt to drive traffic to malicious infrastructure.

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/406889139/free-spins-and-coins-coin-master-app-game-hack In PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/roblox-someone-hacked-my-account_GM431946152.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/oginject-co_GM406889139.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/how-to-hack-pokes-roblox-account_GM431946152.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/hack-roblox-troll-gui_GM431946152.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/clean-master-hack-coins_GM406889139.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-game-ios_GM406889139.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/roblox-rewards_GM431946152.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-v3rmillion_GM431946152.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
- http://learning.mtsn3banyuwangi.sch.id/__statics/gudangsoal/files/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.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_off00003408.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3408	23596 bytes
SHA-256: `34968514846178843802da20be717cf01c2edce080a90567ff9936d488875028`
`font_01_sfnt_off00006950.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6950	18348 bytes
SHA-256: `e3514f5c13c59f74fe131b320bb4a7a21799b0fccf5b53c141d50f68870e844d`

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