Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa10e1b79a811363…

MALICIOUS

PDF

43.8 KB Created: 2021-06-03 14:29:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 6f87cea5d2816f747e7c6be928a1b575 SHA-1: 4ebc186c1c449d70f3df7bc1b7102f15f19d257f SHA-256: aa10e1b79a8113636e37376bc8bdfefdbc7532e2142ec70811cf305529293b17
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links designed to lure users with promises of free game hacks and currency. These links redirect to malicious infrastructure, specifically identified as a redirector. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the presence of malicious links indicates a phishing or social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

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 https://netcdn.online/app/431946152/get-free-robux-gg-game-hack In PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-attack-hack-apk_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-free-spins-link-download-ios_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/robuxhub-net_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/give-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/roblox-free-body_GM431946152.pdfIn PDF document text
    • http://perpustakaan.bkkbnkaltim.id/repository/coin-master-free-spins-link-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
stream_004_off00005264.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5264 25124 bytes
SHA-256: 0b2282058e4b44e03599c8ad538d7afbeaa51e9427cc4f1136f04e215b8fb51a
font_01_sfnt_off00008cd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD9 2928 bytes
SHA-256: aef788c6d9561d7db80da8798bf467a8144e4044f2bc92fcd6561bdeb01d36ba

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