Malicious PDF — malware analysis report

Static analysis result for SHA-256 00175a14acb36285…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 01:31:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 830f0abbe7f1e60e16eb7ac47f0fa3bf SHA-1: d8da572eb2939ea14c94c128384e0ba39b7723cd SHA-256: 00175a14acb362857fecd11cf0d17195acb205106ff3df91547c0573f660610d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and potentially malicious infrastructure, disguised as game hacks and generators. The heuristic firings indicate a critical risk due to malicious redirector links and a lure for game hacks. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a site that likely hosts a malicious payload or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-daily-gifts-game-hack In PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-get-clockwark-glasses-on-roblox-free_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/robux-free-com_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/beautiful-hair-roblox-free_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/roblox-cheat-engine-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-without-buying-something-with-a-email-address_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robloxe_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-hacks-inspect-roblox_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/can-you-get-hacked-on-roblox-when-giving-dis_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/roblox-brocken-bones-4-cheats_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-no-verification-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032ac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32AC 22860 bytes
SHA-256: aa67bb88dd58d044784c0e8c7c74b1b1073a6f1398749b9b898d2feb5580c361
font_01_sfnt_off000065e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E6 18256 bytes
SHA-256: 9a57ad812e157e436bcc4047eb8b4adcab852283a97400467038476e1586e01e

Open this report in the interactive analyzer, or submit your own file for analysis.