PDF malware analysis — malicious · a529bcf414f91db9

MALICIOUS

PDF

45.5 KB Created: 2021-05-16 02:34:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23

MD5: b4ec965ba1d696cbec3b8c45b5ce3ab1 SHA-1: f99273323bfcd933824e3fbceb9f8a1e689a75c9 SHA-256: a529bcf414f91db96306c8f99056b69270a36758b5f00a5f0d4957780914a232

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on what appears to be game-related content, such as 'free generators' or 'game hacks'. These links redirect to malicious infrastructure, specifically identified as a malicious redirector. The document body and heuristics indicate a deceptive attempt to drive traffic to potentially harmful websites, likely for further exploitation or malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

Heuristics 4

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.
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/479516143/how-to-make-a-minecraft-client-game-hack In PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/coin-master-link-today_GM406889139.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/spin-coin_GM406889139.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-without-human-verification_GM406889139.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/coin-master-working-hack_GM406889139.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/coin-master-ios-gods-hack_GM406889139.pdfIn PDF document text
- https://www.elearning.massimbangkulon.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- https://freegiftcodes.euIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004d7e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4D7E	24672 bytes
SHA-256: `49b53c68940ae838ebf242a7d5bf9be640c3a46ba401145d7b836c52e184889c`
`font_01_sfnt_off000085c9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85C9	2900 bytes
SHA-256: `6ada37bb84bd924db18ca1170eae3c2cde3c3298b1c4a8fd378fffac0586ca52`
`font_02_sfnt_off00008fce.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8FCE	18116 bytes
SHA-256: `56ece9bcb07882a6659c5f7e1ce038c62729a3d0bc69e44cc409015ae3a9828f`

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