Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ede6ddd2389011c…

MALICIOUS

PDF

34.3 KB Created: 2021-07-06 06:21:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 0d244fab22d6b4f16b2113f5268749ac SHA-1: 6b6b6d090be43d9e32476a45f3befd4ed3e11790 SHA-256: 4ede6ddd2389011c22a081d83d68cd2d3530ccbca5b1151af6597bcd2054396f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as 'game hacks' and 'generators'. The primary lure URL is http://netcdn.tw/app/431946152/earn-robux-now-game-hack, which is designed to trick users into downloading potentially unwanted or malicious software. The document body and embedded links strongly suggest a social engineering tactic to drive traffic to malicious sites.

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/431946152/earn-robux-now-game-hack In PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/dragon-ball-x-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/wurst-client_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/real-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-use-chatbot-hack-roblox-not-working_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/infection-inc-roblox-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-admin-commands-for-roblox_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/mcpe-optifine_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/minecraft-for-ps3-free_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-games-202120213-free-robux-roblox-game_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/best-free-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/assassin-knife-hack-roblox_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_off0000308c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x308C 22260 bytes
SHA-256: b0a18a71143d9c8a1e156b3b4ef9f42b859c3aef6b3e7ad4f746c3164821aa4d
font_01_sfnt_off000061f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F6 18716 bytes
SHA-256: ad9d788a26765a58da61a35e1cf8ac4777a7c6bf95241a2670242caf96161301

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