PDF malware analysis — malicious · a814f0b2b8f69d73

MALICIOUS

PDF

46.3 KB Created: 2021-05-10 23:05:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24

MD5: c167a9377ab9d727541ac9e9f1c9d9cf SHA-1: d521c25a6ff1024198ec2636369e8fc78a892644 SHA-256: a814f0b2b8f69d7324cc4fae37d834a0659455379f91b308ffb9ed01c87ca2ef

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.8696

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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/hack-my-game-xyz-coin-master-game-hack PDF link annotation
- http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
- http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
- http://elearning.mysadam.info/__statics/gudangsoal/files/coin-master-on-facebook_GM406889139.pdfIn PDF document text
- http://elearning.mysadam.info/__statics/gudangsoal/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://elearning.mysadam.info/__statics/gudangsoal/files/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
- http://www.elearning.mysadam.info/__statics/gudangsoal/files/watch-ads-for-robux_GM431946152.pdfIn PDF document text
- http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
- http://elearning.mysadam.info/__statics/gudangsoal/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
- http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
- http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
- http://elearning.mysadam.info/__statics/gudangsoal/files/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
- http://www.elearning.mysadam.info/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
- http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-card-hack-app_GM406889139.pdfIn PDF document text
- http://elearning.mysadam.info/__statics/gudangsoal/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
- http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-coin-master-gift-link_GM406889139.pdfIn PDF document text
- http://www.elearning.mysadam.info/__statics/gudangsoal/files/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
- http://elearning.mysadam.info/__statics/gudangsoal/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://elearning.mysadam.info/__statics/gudangsoal/files/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
- http://elearning.mysadam.info/__statics/gudangsoal/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
- http://www.elearning.mysadam.info/__statics/gudangsoal/files/best-free-spin-app-for-coin-master_GM406889139.pdfIn 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
`stream_003_off000049d0.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49D0	26520 bytes
SHA-256: `c512b558dae9dadd62d877b99a9ccca22d6240095507fc9be52410a7af08d13b`
`font_01_sfnt_off000086e8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86E8	3124 bytes
SHA-256: `9967c6221325a4ff3f7c4336922605f990450164c2eee2df708cc81823c6ec98`
`font_02_sfnt_off000091c6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91C6	18468 bytes
SHA-256: `3c9c6ea8bcd6cc2f23e874c3935261d3a1655c3ba572cd8a73a47bfae21aa7b1`

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