Malicious PDF — malware analysis report

Static analysis result for SHA-256 1120eead97a5f7c0…

MALICIOUS

PDF

33.8 KB Created: 2021-06-29 02:01:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 09a29c0527162188d4446073e9c2c03e SHA-1: d394cb62549be2d095a4cd9d87f8828dabde153c SHA-256: 1120eead97a5f7c0d20b0849080d796a1983eb389684e2239f2154ab72b865af
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that lead to a known malicious redirector infrastructure, disguised as a 'free generator' or 'game hack' lure. The document body and heuristics indicate a social engineering tactic to trick users into clicking these links, likely to download further malware or lead them to phishing pages. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/free-codes-for-roblox-from-a-roblox-toy-game-hack In PDF document text
    • http://library.ulb.ac.id/repository/roblox-hack-free-robux-android_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/speed-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-promo-codes-2021-robux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-free-rpbux_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/tuto-comment-avoir-des-robux-gratuit-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/pastebin-free-robux-fast-2021_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/hacked-jailbreak-roblox-with-no-verification_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/robux-hack-only-today_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id//repository/best-free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-hack-roblox-wild-savannah-inf-health-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/roblox-free-800-robux-free_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-to-get-free-roblox-card-codes-hack_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/mm2-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/100-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-robux-python_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/how-do-you-be-a-hacker-hacking-into-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://library.ulb.ac.id/repository/best-way-to-make-free-robux-2021_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_off00002ddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DDB 21992 bytes
SHA-256: 3dc19d769ac948d51f63a401eade01f55fa521b4e589cd54b61f823056cfe09b
font_01_sfnt_off00005e87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E87 19264 bytes
SHA-256: 8001edd6c90fe8b6a6b2679e114719acb2c7b6de1e7fa73103c317db977ea012

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