Analysis
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max time kernel
147s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
30-04-2023 23:52
Static task
static1
Behavioral task
behavioral1
Sample
4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe
Resource
win7-20230220-en
General
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Target
4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe
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Size
409KB
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MD5
8e551ccfee0da3f6df1947f46f8f05b9
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SHA1
97298fe2dfbaef07ba4b51b72af54cff14663bb7
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SHA256
4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35
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SHA512
c1e86d0da8e0ba39c08adfe87f977eb7884e70cd92936c55da34a2475e62d85b46c3f29e8f3aab45cb6089f1fddd74971bab8c4a6cb11a5b4f64ec73c4502646
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SSDEEP
6144:c4bizqerHIES/FPm+RCen1KWzbtulGxwfSL5dNim1g:cqiP0/F/Ue1wq5dN
Malware Config
Extracted
vidar
3.6
78489afd9d9a4747beb445e5fb5b9c96
https://steamcommunity.com/profiles/76561199499188534
https://t.me/nutalse
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profile_id_v2
78489afd9d9a4747beb445e5fb5b9c96
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user_agent
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36
Extracted
laplas
http://89.23.97.128
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api_key
bc2dceabe69fa26dbf4dd8295d65e03e1990633a88c1c8410825c9266b239396
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 16636478602975858934.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ntlhost.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 16636478602975858934.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 16636478602975858934.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion ntlhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion ntlhost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe -
Executes dropped EXE 3 IoCs
pid Process 4780 16636478602975858934.exe 4536 98366201929860471301.exe 3376 ntlhost.exe -
Loads dropped DLL 2 IoCs
pid Process 2840 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe 2840 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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resource yara_rule behavioral2/files/0x00060000000223ec-254.dat upx behavioral2/files/0x00060000000223ec-256.dat upx behavioral2/files/0x00060000000223ec-257.dat upx behavioral2/memory/4536-259-0x0000000000160000-0x0000000000FC3000-memory.dmp upx behavioral2/memory/4536-260-0x0000000000160000-0x0000000000FC3000-memory.dmp upx -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" 16636478602975858934.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 16636478602975858934.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4780 16636478602975858934.exe 3376 ntlhost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2148 2840 WerFault.exe 83 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4916 timeout.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 71 Go-http-client/1.1 -
description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2796BAE63F1801E277261BA0D77770028F20EEE4\Blob = 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 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\2796BAE63F1801E277261BA0D77770028F20EEE4 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2840 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe 2840 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2840 wrote to memory of 4780 2840 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe 89 PID 2840 wrote to memory of 4780 2840 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe 89 PID 2840 wrote to memory of 4536 2840 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe 93 PID 2840 wrote to memory of 4536 2840 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe 93 PID 4536 wrote to memory of 2604 4536 98366201929860471301.exe 94 PID 4536 wrote to memory of 2604 4536 98366201929860471301.exe 94 PID 2604 wrote to memory of 2464 2604 cmd.exe 96 PID 2604 wrote to memory of 2464 2604 cmd.exe 96 PID 2840 wrote to memory of 2456 2840 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe 97 PID 2840 wrote to memory of 2456 2840 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe 97 PID 2840 wrote to memory of 2456 2840 4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe 97 PID 2456 wrote to memory of 4916 2456 cmd.exe 99 PID 2456 wrote to memory of 4916 2456 cmd.exe 99 PID 2456 wrote to memory of 4916 2456 cmd.exe 99 PID 4780 wrote to memory of 3376 4780 16636478602975858934.exe 102 PID 4780 wrote to memory of 3376 4780 16636478602975858934.exe 102
Processes
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C:\Users\Admin\AppData\Local\Temp\4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe"C:\Users\Admin\AppData\Local\Temp\4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2840 -
C:\ProgramData\16636478602975858934.exe"C:\ProgramData\16636478602975858934.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:4780 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:3376
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C:\ProgramData\98366201929860471301.exe"C:\ProgramData\98366201929860471301.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4536 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\ProgramData\98366201929860471301.exe3⤵
- Suspicious use of WriteProcessMemory
PID:2604 -
C:\Windows\system32\choice.exechoice /C Y /N /D Y /T 04⤵PID:2464
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\4b4c5e3bd2d16feef05e1f2cfcee8e8d31e5fe8e7237e319385b433fe66c6c35.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2456 -
C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
PID:4916
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 15242⤵
- Program crash
PID:2148
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2840 -ip 28401⤵PID:4220
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
3.5MB
MD5f5548281bcdcec5c1d151d3417412042
SHA1be6d9b40b6ede0f3c5582b8f48bde7f44f2ed792
SHA2563469724e57612ca20c888a5a86719c3e4b6fe71f2cfcfecff2fb3950fd0a32ac
SHA512387d864aca4be8691c20b0ec4b11906491cdb7b0fc435f59699c0596a47ad086d711ed97c47a611b58adf1096203ab7a488e26c307d885e566f56db6dcecab4c
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Filesize
3.5MB
MD5f5548281bcdcec5c1d151d3417412042
SHA1be6d9b40b6ede0f3c5582b8f48bde7f44f2ed792
SHA2563469724e57612ca20c888a5a86719c3e4b6fe71f2cfcfecff2fb3950fd0a32ac
SHA512387d864aca4be8691c20b0ec4b11906491cdb7b0fc435f59699c0596a47ad086d711ed97c47a611b58adf1096203ab7a488e26c307d885e566f56db6dcecab4c
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Filesize
3.5MB
MD5f5548281bcdcec5c1d151d3417412042
SHA1be6d9b40b6ede0f3c5582b8f48bde7f44f2ed792
SHA2563469724e57612ca20c888a5a86719c3e4b6fe71f2cfcfecff2fb3950fd0a32ac
SHA512387d864aca4be8691c20b0ec4b11906491cdb7b0fc435f59699c0596a47ad086d711ed97c47a611b58adf1096203ab7a488e26c307d885e566f56db6dcecab4c
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Filesize
4.3MB
MD59abf6a8efa066a03eba449a11cafef79
SHA1317d75f39958078a9706364e9c73ae3d356c90b4
SHA2568d0f39e08426bf9e7ebc6d84307f0c725136ab9004093e445811881169b5db29
SHA512bacdebecc2f3d4c5634d664e702edb90ecbae113ba0a09a162bdbc844d36393dcfa90dad2e56bbdc77c2bb90165c06d56a1bab2a0d370a34fa664b34c79b908a
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Filesize
4.3MB
MD59abf6a8efa066a03eba449a11cafef79
SHA1317d75f39958078a9706364e9c73ae3d356c90b4
SHA2568d0f39e08426bf9e7ebc6d84307f0c725136ab9004093e445811881169b5db29
SHA512bacdebecc2f3d4c5634d664e702edb90ecbae113ba0a09a162bdbc844d36393dcfa90dad2e56bbdc77c2bb90165c06d56a1bab2a0d370a34fa664b34c79b908a
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Filesize
4.3MB
MD59abf6a8efa066a03eba449a11cafef79
SHA1317d75f39958078a9706364e9c73ae3d356c90b4
SHA2568d0f39e08426bf9e7ebc6d84307f0c725136ab9004093e445811881169b5db29
SHA512bacdebecc2f3d4c5634d664e702edb90ecbae113ba0a09a162bdbc844d36393dcfa90dad2e56bbdc77c2bb90165c06d56a1bab2a0d370a34fa664b34c79b908a
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
590.2MB
MD5d71599e1a0a6de19fbd1e94c8548fc49
SHA1bb5fbd077b6a52e754fd7f7244b5e22bd30c6da9
SHA2562ef0873bdfe443059ba7519b1f50cb763107e0cae64859e7b07deae2c36da183
SHA512fd7a04aabc1ec3c2d7c8c1d4c44cfc20eb4fbfdc2c1087816dcd0fa4e5e8018212a9b8208529fe7569dd0921142edea3b0a03929dfcc3b131022ba20d45dd88b
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Filesize
576.6MB
MD51f5c213528e4dd0eddb2bf982f1fcb16
SHA161989659f53830060ae987d4143c0ff7e6237e12
SHA256d83b35c7bc0e87bc8d7bd46647b78840a371a30295036e7d7e27ba8a6c66a8f5
SHA512f9ba9526676ffc6f469231a95cca22760ce675231a45fb3329659ffb9590ab1dd848662e638dfde349b471cb7ad280a12cca74c4cfe9ceca3cddf319b159419a