Malicious PDF — malware analysis report

Static analysis result for SHA-256 2973eb0dd0a2ea1d…

MALICIOUS

PDF

34.8 KB Created: 2021-06-27 15:03:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1639670fb681f29d224a54eef03b8c34 SHA-1: c6fbcf2d65875be6533ef605bff4d91157a698d1 SHA-256: 2973eb0dd0a2ea1d5a0d016896ff23bc030ed3344d5a99be6dfc58ddf4ab6f2c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for a 'free generator / game hack' which links to known malicious redirector infrastructure. The document body and embedded URLs reinforce this theme, suggesting a phishing attempt to trick users into visiting malicious sites. No scripts were extracted, but the PDF structure and heuristics strongly indicate a malicious redirector.

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.co/app/431946152/how-to-copy-remote-functions-hack-in-roblox-game-hack In PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-roblox-animation-packs_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-no-human-verification-and-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/wheel-decide-free-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/dungeon-quest-roblox-item-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/site-robux-free_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-daily-free-rewards_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/los-hacker-de-roblox-mas-peligrosos_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/tiktok-free-follower-no-human-verification_GM835599320.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/free-coin-master-spins-2021_GM406889139.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_off00003008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3008 21900 bytes
SHA-256: 1f78686842e2cfc29bb3b60ad59cbdbee00569857b603d0459ddc70b57b7e471
font_01_sfnt_off0000604f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x604F 19964 bytes
SHA-256: 97a67aa53279590cbfa8a039f3303cfc57ec2b2a29333ed5f421c1ab2340ced4

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