Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7374b4bb0ea5620…

MALICIOUS

PDF

35.3 KB Created: 2021-06-19 13:51:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7cfc5c3bac356bd0d2415999c360f5df SHA-1: 294e38bd2ab81cd036db2229e479c7036530cd24 SHA-256: c7374b4bb0ea56202a7f63179ed941a6b941062c3348e5dc9f510683fd62b410
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded URLs that lead to sites offering game hacks and currency generators, indicating a lure for users to download potentially unwanted or malicious applications. The presence of a known malicious redirector link and a high ML classifier score further support the malicious nature of this document. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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 http://netcdn.co/app/431946152/freemobile-360.info-free-robux-game-hack In PDF document text
    • http://library.patria-artha.ac.id/repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/android-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-hack-apk-download_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/latest-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-key-cards-roblox_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/coin-master-hack-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-free-body_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/roblox-cheats-picture_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-to-hack-robux-links_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.patria-artha.ac.id/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4A 23076 bytes
SHA-256: caf350a0d2ededff3a3959ef27eed23ba70565da398cd3ee6ad539e2eb36bb07
font_01_sfnt_off00006325.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6325 19748 bytes
SHA-256: 846815f7c688fdabe08d6645bb212ba8eecdb2b253ebef0112aa0cbf3d2f32da

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