| File name: | Server.exe |
| Full analysis: | https://app.any.run/tasks/3a0dff72-d66e-4d82-ad9a-176b22b95631 |
| Verdict: | Malicious activity |
| Threats: | njRAT is a remote access trojan. It is one of the most widely accessible RATs on the market that features an abundance of educational information. Interested attackers can even find tutorials on YouTube. This allows it to become one of the most popular RATs in the world. |
| Analysis date: | November 12, 2023, 10:20:23 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | DAF49EF4E7B769353E5609B14D2AA609 |
| SHA1: | CE6A075C17D6D7D5E721211E3C94B25BB94A713A |
| SHA256: | 35215E7FFAF1923FCA3BBFC463FDCCD1A4A2CABFB0173D0565C8934977017779 |
| SSDEEP: | 384:Pa/N9cY5+UPoT+4Xim2dSHVfAdssIJqqah0I8ZumTG3IBL+EcoinblneHQM3epzj:iiWoTfXi34Vf1JqqiD8ZuSNudFcI |
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2023:11:12 10:06:07+01:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 35840 |
| InitializedDataSize: | 1536 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xabae |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1276 | "C:\Program Files\FileZilla FTP Client\filezilla.exe" | C:\Program Files\FileZilla FTP Client\filezilla.exe | — | explorer.exe | |||||||||||
User: admin Company: FileZilla Project Integrity Level: MEDIUM Description: FileZilla FTP Client Exit code: 0 Version: 3, 65, 0, 0 Modules
| |||||||||||||||
| 1364 | "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --type=renderer --user-data-dir="C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop" --app-user-model-id=Microsoft.Skype.SkypeDesktop --app-path="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar" --no-sandbox --no-zygote --enable-blink-features --disable-blink-features --autoplay-policy=no-user-gesture-required --disable-background-timer-throttling --ms-disable-indexeddb-transaction-timeout --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2700 --field-trial-handle=1304,i,15087689982568013404,11837432062114357078,131072 --enable-features=WinUseBrowserSpellChecker,WinUseHybridSpellChecker,WinrtGeolocationImplementation --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:1 | C:\Program Files\Microsoft\Skype for Desktop\Skype.exe | — | Skype.exe | |||||||||||
User: admin Company: Skype Technologies S.A. Integrity Level: MEDIUM Description: Skype Exit code: 0 Version: 8.100.0.203 Modules
| |||||||||||||||
| 2368 | "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --type=gpu-process --user-data-dir="C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop" --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1484 --field-trial-handle=1304,i,15087689982568013404,11837432062114357078,131072 --enable-features=WinUseBrowserSpellChecker,WinUseHybridSpellChecker,WinrtGeolocationImplementation --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2 | C:\Program Files\Microsoft\Skype for Desktop\Skype.exe | — | Skype.exe | |||||||||||
User: admin Company: Skype Technologies S.A. Integrity Level: LOW Description: Skype Exit code: 0 Version: 8.100.0.203 Modules
| |||||||||||||||
| 2932 | netsh firewall add allowedprogram "C:\Users\admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE | C:\Windows\System32\netsh.exe | — | Server.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Network Command Shell Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3028 | C:\Windows\system32\reg.exe QUERY HKCU\Software\Microsoft\Skype /v RestartForUpdate | C:\Windows\System32\reg.exe | — | Skype.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Registry Console Tool Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3212 | "C:\Users\admin\AppData\Local\Temp\Server.exe" | C:\Users\admin\AppData\Local\Temp\Server.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
NjRat(PID) Process(3212) Server.exe C22.tcp.eu.ngrok.io Ports15121 BotnetHacKed Options Auto-run registry keySoftware\Microsoft\Windows\CurrentVersion\Run\00c809e36a8349a00b71b6c3c9576930 Splitter|'|'| Versionim523 | |||||||||||||||
| 3216 | "C:\Program Files\Windows Media Player\wmpnscfg.exe" | C:\Program Files\Windows Media Player\wmpnscfg.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Media Player Network Sharing Service Configuration Application Exit code: 0 Version: 12.0.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3504 | taskkill /F /IM svchost.exe | C:\Windows\System32\taskkill.exe | — | Server.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Terminates Processes Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3592 | "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" --type=renderer --user-data-dir="C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop" --app-user-model-id=Microsoft.Skype.SkypeDesktop --app-path="C:\Program Files\Microsoft\Skype for Desktop\resources\app.asar" --no-sandbox --no-zygote --autoplay-policy=no-user-gesture-required --disable-background-timer-throttling --ms-disable-indexeddb-transaction-timeout --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=4 --mojo-platform-channel-handle=1820 --field-trial-handle=1304,i,15087689982568013404,11837432062114357078,131072 --enable-features=WinUseBrowserSpellChecker,WinUseHybridSpellChecker,WinrtGeolocationImplementation --disable-features=SpareRendererForSitePerProcess,WinRetrieveSuggestionsOnlyOnDemand --skype-process-type=Main --skype-window-id=__MAIN_ROOT_VIEW_ID__ /prefetch:1 | C:\Program Files\Microsoft\Skype for Desktop\Skype.exe | — | Skype.exe | |||||||||||
User: admin Company: Skype Technologies S.A. Integrity Level: MEDIUM Description: Skype Exit code: 0 Version: 8.100.0.203 Modules
| |||||||||||||||
| 3860 | "C:\Program Files\Microsoft\Skype for Desktop\Skype.exe" | C:\Program Files\Microsoft\Skype for Desktop\Skype.exe | explorer.exe | ||||||||||||
User: admin Company: Skype Technologies S.A. Integrity Level: MEDIUM Description: Skype Exit code: 0 Version: 8.100.0.203 Modules
| |||||||||||||||
| (PID) Process: | (3216) wmpnscfg.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Media Player NSS\3.0\Events\{ED9EA9CE-7FCA-408B-AB4E-BCD31D24B0C6}\{97F87C9F-6595-454C-916D-A30B00E656C4} |
| Operation: | delete key | Name: | (default) |
Value: | |||
| (PID) Process: | (3216) wmpnscfg.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Media Player NSS\3.0\Events\{ED9EA9CE-7FCA-408B-AB4E-BCD31D24B0C6} |
| Operation: | delete key | Name: | (default) |
Value: | |||
| (PID) Process: | (3216) wmpnscfg.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\MediaPlayer\Health\{3613793F-F499-475C-8CCA-E02E6560410D} |
| Operation: | delete key | Name: | (default) |
Value: | |||
| (PID) Process: | (2932) netsh.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\17A\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3212) Server.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | 00c809e36a8349a00b71b6c3c9576930 |
Value: "C:\Users\admin\AppData\Local\Temp\Server.exe" .. | |||
| (PID) Process: | (3860) Skype.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\17A\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3860 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\Crashpad\settings.dat | binary | |
MD5:5D187988D1591D3FD80F3EEA284F3A4D | SHA256:ADACD52C6DAEA932EE305C540588D43B2FEE1A1307D7E98B84778A10D104646B | |||
| 3972 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\Cache\Cache_Data\f_000001 | binary | |
MD5:4604E676A0A7D18770853919E24EC465 | SHA256:A075B01D9B015C616511A9E87DA77DA3D9881621DB32F584E4606DDABF1C1100 | |||
| 3860 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\Dictionaries\en-US-10-1.bdic | binary | |
MD5:4604E676A0A7D18770853919E24EC465 | SHA256:A075B01D9B015C616511A9E87DA77DA3D9881621DB32F584E4606DDABF1C1100 | |||
| 3860 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\settings.json | binary | |
MD5:0BCF67703377596741628EC37DF8D67A | SHA256:B23B8EE723EC0CF5651A2182F63AEEB51C3CB2FA3488A8DDC0274C2BA2BF1912 | |||
| 3860 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\ecscache.json | binary | |
MD5:3B74B27A21BA84F6F9D8AF834E4FE22E | SHA256:0CB2862166F1DB985DC8D0CB990FAB9CD71D1E42C1A282548E97046117E0220F | |||
| 3860 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b916037c1e115fe0.customDestinations-ms | binary | |
MD5:47F942424BF006D023A0B4505A3711AB | SHA256:97CF99F6C785082A0041A08526239159508878AE85837993B4EE4C9AABF5C235 | |||
| 3860 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\IMP6C6RZHH1TRZDQ5XP4.temp | binary | |
MD5:47F942424BF006D023A0B4505A3711AB | SHA256:97CF99F6C785082A0041A08526239159508878AE85837993B4EE4C9AABF5C235 | |||
| 3860 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\Local Storage\leveldb\LOG.old | text | |
MD5:B4DCEF7068BF63E8D712B7528F1E9932 | SHA256:87D49743322980F35B8BAFDA3A6CDE33CCF9F03C4610782DA596CFCEB7CD873B | |||
| 3592 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\CS_skylib\CS_shared.tmp | binary | |
MD5:99914B932BD37A50B983C5E7C90AE93B | SHA256:44136FA355B3678A1146AD16F7E8649E94FB4FC21FE77E8310C060F61CAAFF8A | |||
| 3860 | Skype.exe | C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\Partitions\bb87d2ae-b4d7-4461-8f14-05347b0ed54e\Local Storage\leveldb\MANIFEST-000001 | binary | |
MD5:5AF87DFD673BA2115E2FCF5CFDB727AB | SHA256:F9D31B278E215EB0D0E9CD709EDFA037E828F36214AB7906F612160FEAD4B2B4 | |||
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
2588 | svchost.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
3212 | Server.exe | 18.192.93.86:15121 | 2.tcp.eu.ngrok.io | AMAZON-02 | DE | unknown |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
3860 | Skype.exe | 52.174.193.75:443 | get.skype.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
3972 | Skype.exe | 95.168.222.205:443 | r2---sn-n02xgoxufvg3-2gb6.gvt1.com | — | — | unknown |
3860 | Skype.exe | 13.107.42.16:443 | a.config.skype.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
3860 | Skype.exe | 52.178.17.2:443 | pipe.skype.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | unknown |
3972 | Skype.exe | 172.217.16.206:443 | redirector.gvt1.com | GOOGLE | US | whitelisted |
3860 | Skype.exe | 2.19.244.163:443 | download.skype.com | AKAMAI-AS | DE | unknown |
Domain | IP | Reputation |
|---|---|---|
2.tcp.eu.ngrok.io |
| malicious |
get.skype.com |
| whitelisted |
a.config.skype.com |
| whitelisted |
pipe.skype.com |
| whitelisted |
redirector.gvt1.com |
| whitelisted |
download.skype.com |
| whitelisted |
r2---sn-n02xgoxufvg3-2gb6.gvt1.com |
| whitelisted |
gateway.bingviz.microsoftapp.net |
| unknown |
login.live.com |
| whitelisted |
logincdn.msftauth.net |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
1080 | svchost.exe | Misc activity | ET INFO DNS Query to a *.ngrok domain (ngrok.io) |
3212 | Server.exe | Malware Command and Control Activity Detected | ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll) |
3212 | Server.exe | Malware Command and Control Activity Detected | ET MALWARE njrat ver 0.7d Malware CnC Callback (Remote Desktop) |
3212 | Server.exe | Malware Command and Control Activity Detected | ET MALWARE njrat ver 0.7d Malware CnC Callback Response (Remote Desktop) |
3212 | Server.exe | Malware Command and Control Activity Detected | ET MALWARE njrat ver 0.7d Malware CnC Callback Response (Remote Desktop) |
3212 | Server.exe | Malware Command and Control Activity Detected | ET MALWARE njrat ver 0.7d Malware CnC Callback Response (Remote Desktop) |
3212 | Server.exe | Malware Command and Control Activity Detected | ET MALWARE njrat ver 0.7d Malware CnC Callback Response (Remote Desktop) |
3212 | Server.exe | Malware Command and Control Activity Detected | ET MALWARE njrat ver 0.7d Malware CnC Callback Response (Remote Desktop) |
3212 | Server.exe | Malware Command and Control Activity Detected | ET MALWARE njrat ver 0.7d Malware CnC Callback Response (Remote Desktop) |
3212 | Server.exe | Malware Command and Control Activity Detected | ET MALWARE njrat ver 0.7d Malware CnC Callback Response (Remote Desktop) |
Process | Message |
|---|---|
Skype.exe | [1112/102049.033:ERROR:filesystem_win.cc(130)] GetFileAttributes C:\Users\admin\AppData\Roaming\Microsoft\Skype for Desktop\Crashpad\attachments\3a0ee62b-79ac-4cc3-bbd5-f65252e7a91f: The system cannot find the file specified. (0x2)
|