PDF malware analysis — malicious · 5384ba7858e5d8f2

MALICIOUS

PDF

44.3 KB Created: 2021-05-11 09:02:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23

MD5: 9e7ab4fced367a4cede337c99d12b8c7 SHA-1: 5e74b3f60321962025229bef12376d80eb83aefd SHA-256: 5384ba7858e5d8f222aeb9cc3f589cb46eec44e67cf206c928e6bcb4149be77e

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, including one that redirects to known malicious infrastructure associated with game hacks and generators. The document body and heuristics indicate a lure for free game items, likely leading to a phishing or malware download site. No scripts were extracted, but the presence of malicious redirectors and the lure pattern strongly suggest a phishing or social engineering attack.

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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-cards-hack-game-hack In PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/free-robux-2021_GM431946152.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/roblox-printables-free_GM431946152.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/free-robux-ad_GM431946152.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/worst-roblox-avatars_GM431946152.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/roblox-generator_GM431946152.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/robux-for-surveys_GM431946152.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/coin-master-apk-hack_GM406889139.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
- https://e-learning.m2mpekanbaru.sch.id/__statics/gudangsoal/files/coin-master-game-hack-apk_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_off00004d08.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D08	30844 bytes
SHA-256: `b261eb8389452723e6b2033d81c1050e15929d64a190288cfb887b717df1110f`
`font_01_sfnt_off00008bce.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BCE	18056 bytes
SHA-256: `ad4f2d10031887feff52537d65cf9a04719575ebe7be64232d8e0b4f73fdfdc1`

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