Overview
overview
7Static
static
3Nocturno_2...up.exe
windows10-2004-x64
7Nocturno_2...up.exe
windows11-21h2-x64
7$PLUGINSDI...nu.dll
windows10-2004-x64
3$PLUGINSDI...nu.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...gs.dll
windows10-2004-x64
3$PLUGINSDI...gs.dll
windows11-21h2-x64
3$PLUGINSDI...ls.dll
windows10-2004-x64
3$PLUGINSDI...ls.dll
windows11-21h2-x64
3$TEMP/Micr...up.exe
windows10-2004-x64
6$TEMP/Micr...up.exe
windows11-21h2-x64
6nocturno-launcher.exe
windows10-2004-x64
6nocturno-launcher.exe
windows11-21h2-x64
6uninstall.exe
windows10-2004-x64
7uninstall.exe
windows11-21h2-x64
7$PLUGINSDI...LL.dll
windows10-2004-x64
3$PLUGINSDI...LL.dll
windows11-21h2-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows11-21h2-x64
3$PLUGINSDI...ls.dll
windows10-2004-x64
3$PLUGINSDI...ls.dll
windows11-21h2-x64
3Analysis
- max time kernel
149s - max time network
152s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
23/04/2026, 02:04
Static task
static1
Behavioral task
behavioral1
Sample
Nocturno_2.4.0_x64-setup.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
Nocturno_2.4.0_x64-setup.exe
Resource
win11-20260130-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/StartMenu.dll
Resource
win11-20260130-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260130-en
Behavioral task
behavioral7
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral8
Sample
$PLUGINSDIR/nsDialogs.dll
Resource
win11-20260130-en
Behavioral task
behavioral9
Sample
$PLUGINSDIR/nsis_tauri_utils.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral10
Sample
$PLUGINSDIR/nsis_tauri_utils.dll
Resource
win11-20260130-en
Behavioral task
behavioral11
Sample
$TEMP/MicrosoftEdgeWebview2Setup.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral12
Sample
$TEMP/MicrosoftEdgeWebview2Setup.exe
Resource
win11-20260130-en
Behavioral task
behavioral13
Sample
nocturno-launcher.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral14
Sample
nocturno-launcher.exe
Resource
win11-20260130-en
Behavioral task
behavioral15
Sample
uninstall.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral16
Sample
uninstall.exe
Resource
win11-20260130-en
Behavioral task
behavioral17
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral18
Sample
$PLUGINSDIR/LangDLL.dll
Resource
win11-20260130-en
Behavioral task
behavioral19
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral20
Sample
$PLUGINSDIR/System.dll
Resource
win11-20260130-en
Behavioral task
behavioral21
Sample
$PLUGINSDIR/nsis_tauri_utils.dll
Resource
win10v2004-20260130-en
Behavioral task
behavioral22
Sample
$PLUGINSDIR/nsis_tauri_utils.dll
Resource
win11-20260130-en
General
- Target Nocturno_2.4.0_x64-setup.exe
- Size 26.3MB
- Sample260423-chpfaags4t
- SHA256 f8a8e4529497331fa0eb09c7d9f8143273d592725e9793ada050058739835ff7
- MD5 9a20d1259ca8f466702cff24760e0b08
- SHA1 f9d0e8ee3dd0e3110b23bb4da8c1ff48123aaac8
- SHA512 a9df608ccef817f38d0c3f42265248b968cdba9b53ada6a5ad7e31323b56d57608a48435d02a750f7c8f01e72a0d7244ed6f509cbad1b7d55169091609005ea3
- SSDEEP 786432:cu3GPKbOEu+rtlxxwWxGbf3HNffn4ldGFrjfJkI8:cSGyCMlGjV0GFSI8
- TLSH T11857336EC0D14A65C487E1F54A67077D6CE3AB7CC29C7A87E5AD27BF0406B80132E46B
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Loads dropped DLL 6 IoCs
pid Process 1432 Nocturno_2.4.0_x64-setup.exe 1432 Nocturno_2.4.0_x64-setup.exe 1432 Nocturno_2.4.0_x64-setup.exe 1432 Nocturno_2.4.0_x64-setup.exe 1432 Nocturno_2.4.0_x64-setup.exe 1432 Nocturno_2.4.0_x64-setup.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Nocturno\nocturno-launcher.exe Nocturno_2.4.0_x64-setup.exe File created C:\Program Files\Nocturno\uninstall.exe Nocturno_2.4.0_x64-setup.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Nocturno_2.4.0_x64-setup.exe - Modifies registry class 11 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\nocturno\shell\open\command\ = "\"C:\\Program Files\\Nocturno\\nocturno-launcher.exe\" \"%1\"" Nocturno_2.4.0_x64-setup.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\nocturno\URL Protocol Nocturno_2.4.0_x64-setup.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\nocturno\ = "URL:cc.nocturno.launcher protocol" Nocturno_2.4.0_x64-setup.exe Key created \REGISTRY\MACHINE\Software\Classes\nocturno\DefaultIcon Nocturno_2.4.0_x64-setup.exe Key created \REGISTRY\MACHINE\Software\Classes\nocturno\shell\open\command Nocturno_2.4.0_x64-setup.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\nocturno Nocturno_2.4.0_x64-setup.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\nocturno\shell\open\command Nocturno_2.4.0_x64-setup.exe Key created \REGISTRY\MACHINE\Software\Classes\nocturno Nocturno_2.4.0_x64-setup.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\nocturno\DefaultIcon\ = "\"C:\\Program Files\\Nocturno\\nocturno-launcher.exe\",0" Nocturno_2.4.0_x64-setup.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\nocturno\shell Nocturno_2.4.0_x64-setup.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\nocturno\shell\open Nocturno_2.4.0_x64-setup.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1432 Nocturno_2.4.0_x64-setup.exe 1432 Nocturno_2.4.0_x64-setup.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Nocturno_2.4.0_x64-setup.exe"C:\Users\Admin\AppData\Local\Temp\Nocturno_2.4.0_x64-setup.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:1432
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\nsi3FA6.tmp\System.dll
- Size 12KB
- SHA256 8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
- MD5 cff85c549d536f651d4fb8387f1976f2
- SHA1 d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
- SHA512 531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88
- SSDEEP 192:Zjvco0qWTlt70m5Aj/lQ0sEWD/wtYbBHFNaDybC7y+XBz0QPi:FHQlt70mij/lQRv/9VMjzr
- TLSH T126426B129BB089F2F591583814667F2A6FBE9C5D27F50563CFE304D63D212CB983A283
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\nsi3FA6.tmp\modern-wizard.bmp
- Size 150KB
- SHA256 d013b63eee9704679b4c3bc1798bed21a2dabecde6cdb977a7ce46f424de6522
- MD5 94fd0073ae64fe2b4f5b695ccadc1a2c
- SHA1 7db6e1e9c725d42fd67a57bdc6f5d0a7a2f1aa92
- SHA512 851608717689e9a15be6bc4f434aea5337783716286e6faf2f64d963de8bd2f82ea09c7b558fe2d5dde56ecd41327995c8ed5d83d9a986ff0e8c7a6184774098
- SSDEEP 3072:aeRlcUioBqswYDWpAm4vz96lttT1JyKFDTFLKFFTJeG:5BqswYDWZ/lttfpTFLK3JB
- TLSH T1C3E312E96116A7C59C68DDF48D21E81F42270CB046DBD2FC8A2C6EAE74C3D67C9C19B4
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\nsi3FA6.tmp\nsDialogs.dll
- Size 9KB
- SHA256 56b96add1978b1abba286f7f8982b0efbe007d4a48b3ded6a4d408e01d753fe2
- MD5 6c3f8c94d0727894d706940a8a980543
- SHA1 0d1bcad901be377f38d579aafc0c41c0ef8dcefd
- SHA512 2094f0e4bb7c806a5ff27f83a1d572a5512d979eefda3345baff27d2c89e828f68466d08c3ca250da11b01fc0407a21743037c25e94fbe688566dd7deaebd355
- SSDEEP 96:o0svUu3Uy+sytcS8176b+XR8pCHFcMcxSgB5PKtAtgt+Nt+rnt3DVEB3YcNqkzfS:o0svWyNO81b8pCHFcM0PuAgkOyuIFc
- TLSH T17012F992E6A450B3C5D6533B35AA2F2DCBBD5325B0926C00C7738E4D39395B66E38353
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\nsi3FA6.tmp\nsis_tauri_utils.dll
- Size 33KB
- SHA256 3697d11bdbe1e34daa26b1e89d84276d9ff28148906943d0fe888354c3b13620
- MD5 acde70f73d3b71b1c4222b763537780d
- SHA1 b053b2e5fdb97257954c8f935d80964f056520ae
- SHA512 598fc58a5f561e7995eccccb065faf2a2386bce0cfc4199fa95ba9fb74e9fcb291914676996c90728dd283223c2180de9fe073a4c936e60fbabe036d7e0a40de
- SSDEEP 768:L8+c2MM0Hxd1fBTsRmMZdauVKAFKpnp0jdhK7R+qVQTxM:L8+DMfHPxAIMtXIVQTx
- TLSH T144F24A18FCC47EB6E6DF0570080D4A7E826FC8181B14CE9BD3A51EA2D5A63729EE501F
- MD5 SHA1 SHA512 SSDEEP TLSH