Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7c6a5d75dcf0782…

MALICIOUS

PDF

49.5 KB Created: 2021-05-12 06:30:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 1e72c90513b184a0ff5d5dac3e245860 SHA-1: 218e1d442a3f431dce992f2c67e91d9bae7fb6b1 SHA-256: c7c6a5d75dcf07827bbd5a3d209bf3a9916fc6dc8e6aa979803b22f255b6f2ee
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and hosts lures for free game currency and hacks. The document body and embedded URLs suggest a social engineering tactic to entice users to click through to potentially malicious sites. No scripts were extracted, but the presence of multiple malicious links indicates a high likelihood of further payload delivery or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9349

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/431946152/free-robux-no-download-game-hack In PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-mod-version-free-download-ios_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/minecraft-net-free_GM479516143.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/hack-coin-master-apk-358_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-drop-master-free_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/coin-master-100-spin-slot_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/oginject-co_GM406889139.pdfIn PDF document text
    • https://mtsn1kebumen.sch.id/__statics/gudangsoal/files/funbloxxyz-free-robux_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_003_off000048fe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48FE 31756 bytes
SHA-256: 5c8e5b1d27d0561f4cd993d413603400c1608ca108434a2d161945b746cd479e
font_01_sfnt_off00009089.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9089 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D9B 18824 bytes
SHA-256: a83584a15d83770571e134086905248a9fe783ccc3b424d06d308178a7ec7f42

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