Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2045a68a70dac04…

MALICIOUS

PDF

51.3 KB Created: 2021-06-03 06:42:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: afb377f3e9f9ae706496246666e56c56 SHA-1: 0f6203c1dcad11a7c94b960015596a1bc47d1250 SHA-256: b2045a68a70dac04531c866fddcc5158d8c77d49eb1fd36d45096ae2f9db6914
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

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

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 3

  • 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.
  • 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.online/app/406889139/coin-master-hack-tool-v1-9-download-free-pc-game-hack PDF link annotation
    • http://perpus.masda.ac.id//repository/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spins-8-14-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-today_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/hack-coin-master-android_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/minecraft-jar-free_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/get-robux-for-free-2021_GM431946152.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.

FilenameKindSourceSize
stream_004_off0000514f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x514F 27416 bytes
SHA-256: 185a64314ddb72f3c955303cd78eb92030b989bfbebec61685bece669db035a5
font_01_sfnt_off00009123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9123 3088 bytes
SHA-256: 21947db80f63681192ff4d23c9293372afcdd8455d0079c5ca62ec2c2320d79e
font_02_sfnt_off00009bee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BEE 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2

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