Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c962933d20a64b7…

MALICIOUS

PDF

35.8 KB Created: 2021-06-27 06:15:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 6fdcda8fa4dafd13a42b13588e17d85c SHA-1: 8c1fe5447e6fbab714d7ce025d5cb3be3f8408d9 SHA-256: 9c962933d20a64b7ae917dae338ee1ac9cf9c0b97535548d0b3e037eddf6f191
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs that lead to known malicious redirectors and sites offering game hacks and cheats. The heuristic firings indicate that this PDF is designed to lure users into clicking these links, likely to download further malware or engage in credential harvesting. No scripts were extracted, but the overall pattern suggests a phishing or social engineering attack aimed at users interested in online games.

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/roblox-pin-code-hack-game-hack In PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/boxing-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-robux-without-verification-code_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/roblox-egg-farm-simulator-hack_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/game-give-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-roblox-characters_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-roblox-card-codes-not-used-2021_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/how-to-get-a-free-dominus-hat-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/games-that-give-you-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://www.sourceit.llc/uploaded_files/userfiles/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 2

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_002_off00003214.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3214 23376 bytes
SHA-256: efdf2d417c138e5b75ab7c3385bf75883929b10f69d206dca12b6602c271df50
font_01_sfnt_off000066e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E7 19104 bytes
SHA-256: 19a293c35a454d2a1c9092e6a2b773b664537bc5eae3d5694b1e0b53f142a1e2

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