Malicious PDF — malware analysis report

Static analysis result for SHA-256 6035a68d543e81cf…

MALICIOUS

PDF

51.3 KB Created: 2021-06-11 10:25:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 241fd208f39c7c4d9df7a85626cf2bc2 SHA-1: cdb10d656cdb176c2755f0be6de97b38eff27407 SHA-256: 6035a68d543e81cfb04ffcd2183c18fb4705279da56147fefa99577fa5f70921
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for free game items, directing users to a known malicious redirector URL. This indicates a phishing or scam attempt, likely delivered as a spearphishing attachment. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9724

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.tw/app/431946152/get-free-absol-egg-brick-bronse-roblox-game-hack In PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/free-minecraft-website_GM479516143.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/free-roblox-open-groups_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/minecraft-free-download_GM479516143.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/free-roblox-giftcard-games_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/free-tiktok-likes-without-verification_GM835599320.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/easyrobux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/roblox-rocitizens-money-hack_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/robux-free-c_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/respoy/repository/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/how-to-hack-pokemon-go-roblox_GM431946152.pdfIn PDF document text
    • https://perpus.poltekkesjkt2.ac.id/setiadi/repository/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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52CC 30792 bytes
SHA-256: 26dd1bbb2a5bf1558403a8e2468bb4e7256d81a9902064786083f489591b9904
font_01_sfnt_off0000979f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x979F 4008 bytes
SHA-256: 515da38a799acdefd039af3a0dfb6ec4815b572058c9bd492ec5a77cd7658593
font_02_sfnt_off0000a52b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA52B 18628 bytes
SHA-256: fccd3deac4acbde2e07e81d9fe17cc79f1437f842de0e4393b079e215b2af468

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