Malicious PDF — malware analysis report

Static analysis result for SHA-256 e915545e45a20fa1…

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 19:06:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 305811b8542baff99ff6d1319bc55876 SHA-1: 2e904e5c3935ec8f1045671f3608c7f819a1f712 SHA-256: e915545e45a20fa1c6b14c16e85f57883d76ee26cf829bde541ed021a1a183e5
160 Risk Score

Malware Insights

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

This PDF file contains multiple links to external URLs, including one identified as a malicious redirector. The document body and heuristics indicate a lure for 'game hacks' or 'generators', suggesting a social engineering tactic to trick users into visiting malicious sites. The primary IOC is the identified malicious redirector URL.

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/406889139/2021-coin-master-hack-without-verification-game-hack In PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/robux-online_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-robux-codes-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-free-redeem-code_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/pet-sim-online-hack-download-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/claim-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/roblox-hack-app-cheat_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/minecraft-free-app_GM479516143.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-to-hack-into-any-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/roblox-cheat-engine-forcefield_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-robux-hack-2021-april_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/2021-free-roblox-exploit-safe_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/how-to-e-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/roblox-download-free-hp_GM431946152.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/coin-master-daily-free-spin-and-coin-link-haktuts_GM406889139.pdfIn PDF document text
    • http://perpus.iainkediri.ac.id/pasca/repository/free-robux-with-developer-tools_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_off000030c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C1 22700 bytes
SHA-256: d7aa4c93ea92a51d525ef1b16fe0e4e5e30a29fafeb7f474f6bf5783d1af539c
font_01_sfnt_off0000632f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x632F 19044 bytes
SHA-256: 2d449aefe59e4d4e663a1469e1d3128c76dc2ed5650d790a7f09a2fa89a0de60

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