PDF malware analysis — malicious · 6e7afa90273498d1

MALICIOUS

PDF

43.5 KB Created: 2021-05-11 09:00:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: aba8482933ce7a29c457b6a0397c740a SHA-1: 0f6d412e150aa018796de2120a68e264dc036873 SHA-256: 6e7afa90273498d14691e857f3763a1695daf9d83f58a1ee1dd0e0599448821e

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a lure for game hacks. The document body, though partially obfuscated, contains a URL that aligns with the 'free generator / game hack' lure. The presence of numerous embedded links suggests an attempt to drive traffic to potentially malicious or SEO-farmed content.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/406889139/coin-master-free-daily-spins-today-game-hack In PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/roblox-top_GM431946152.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/minecraft-mac-free_GM479516143.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/how-can-i-get-robux_GM431946152.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/free-robux-rewards_GM431946152.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/coin-master-hack-8-ball-pool_GM406889139.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/free-coin-master-cheats_GM406889139.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
- https://www.e-learning-mas-dailkhairaat.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-xbox-360_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_003_off00004de7.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4DE7	25336 bytes
SHA-256: `a87206661262986d1cd210a5b3952c743d868ff7eb7b9935c0590472993d9abc`
`font_01_sfnt_off00008716.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8716	18480 bytes
SHA-256: `3f20608b23d642d48b0ef55ae4729c727d7cf00d09df157ae026893392480c2b`

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