Malicious PDF — malware analysis report

Static analysis result for SHA-256 209bd3e9a0b18b09…

MALICIOUS

PDF

208.0 KB Created: 2021-07-06 07:30:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 919b24edbcdaabc44553d33e7bd98a07 SHA-1: c4a94f70236df4b4858cd21500b4e7ab2bbac824 SHA-256: 209bd3e9a0b18b09f0555d327105da0b26230f856ef395a76ca79887c21aafbb
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a known malicious domain, masquerading as a game hack generator. The document body and heuristics indicate a lure designed to entice users to click on these malicious links. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.2331

Heuristics 3

  • 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.
  • 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/1094591345/pokemon-go-basic-vs-premium-game-hack In PDF document text
    • https://fib.ub.ac.id/sac//repository/toolbox-mod_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/level-hack-roblox-naruto-final-bond-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/rich-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/win-free-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-free-spins-ios_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/hack-roblox-para-volar_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-magnet-simolator-hack_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/wurst_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-password-hacker-online_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/cpat-hacker-in-mad-city-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/free-avatar-on-roblox_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://fib.ub.ac.id/sac//repository/how-to-get-robux_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/roblox-hack-build-you-one-boat_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/how-to-hack-roblox-accounts-2021-pc_GM431946152.pdfIn PDF document text
    • https://fib.ub.ac.id/sac/repository/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_023_off00031d09.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31D09 12380 bytes
SHA-256: 0dcba274c351475ce675287b5d3b43b4958926f19f1371effd2ba2084bbf40a1

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