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Analysis
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max time kernel
147s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system -
submitted
29/04/2023, 21:30
Static task
static1
General
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Target
bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe
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Size
465KB
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MD5
7e83d4fbbc09b11bf50ae8dc8c9c55bc
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SHA1
1bbf104b8ee8bf49deab75fe6d9057f5f30796fb
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SHA256
bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8
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SHA512
6e11d6e2d05054b60f8403765292307f157809e8c0d69eda708e0c38b6adc0182250698e6358a1d4dff554a5b71b0c99b77ce6d306388b1db3d75ebebae705a4
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SSDEEP
6144:epKASs15gSoPCfIoX2pGGVa/Y2Gmbxeq7jMEix4Ejufq:epKds15gSmSIoXdGYwzmbxZ7jMbaEju
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__ 26850263452530845378.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 26850263452530845378.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 26850263452530845378.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 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe -
Executes dropped EXE 3 IoCs
pid Process 5072 26850263452530845378.exe 4340 66688342639333421919.exe 1088 ntlhost.exe -
Loads dropped DLL 2 IoCs
pid Process 1304 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe 1304 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.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 behavioral1/files/0x0002000000022cba-241.dat upx behavioral1/files/0x0002000000022cba-245.dat upx behavioral1/files/0x0002000000022cba-244.dat upx behavioral1/memory/4340-249-0x0000000000D10000-0x0000000001B73000-memory.dmp upx behavioral1/memory/4340-250-0x0000000000D10000-0x0000000001B73000-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" 26850263452530845378.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 26850263452530845378.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 5072 26850263452530845378.exe 1088 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 2936 1304 WerFault.exe 84 -
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 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 1020 timeout.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 58 Go-http-client/1.1 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1304 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe 1304 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 1304 wrote to memory of 5072 1304 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe 88 PID 1304 wrote to memory of 5072 1304 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe 88 PID 1304 wrote to memory of 4340 1304 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe 91 PID 1304 wrote to memory of 4340 1304 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe 91 PID 4340 wrote to memory of 5112 4340 66688342639333421919.exe 94 PID 4340 wrote to memory of 5112 4340 66688342639333421919.exe 94 PID 1304 wrote to memory of 4872 1304 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe 96 PID 1304 wrote to memory of 4872 1304 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe 96 PID 1304 wrote to memory of 4872 1304 bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe 96 PID 5112 wrote to memory of 3372 5112 cmd.exe 100 PID 5112 wrote to memory of 3372 5112 cmd.exe 100 PID 4872 wrote to memory of 1020 4872 cmd.exe 101 PID 4872 wrote to memory of 1020 4872 cmd.exe 101 PID 4872 wrote to memory of 1020 4872 cmd.exe 101 PID 5072 wrote to memory of 1088 5072 26850263452530845378.exe 103 PID 5072 wrote to memory of 1088 5072 26850263452530845378.exe 103
Processes
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C:\Users\Admin\AppData\Local\Temp\bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe"C:\Users\Admin\AppData\Local\Temp\bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1304 -
C:\ProgramData\26850263452530845378.exe"C:\ProgramData\26850263452530845378.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:5072 -
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:1088
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C:\ProgramData\66688342639333421919.exe"C:\ProgramData\66688342639333421919.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4340 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\ProgramData\66688342639333421919.exe3⤵
- Suspicious use of WriteProcessMemory
PID:5112 -
C:\Windows\system32\choice.exechoice /C Y /N /D Y /T 04⤵PID:3372
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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\bf07aec1b9e93c205b053cb8507ccd115c2ed98a277177c6d823814a71e5b5c8.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:4872 -
C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
PID:1020
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1304 -s 20762⤵
- Program crash
PID:2936
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 1304 -ip 13041⤵PID:4248
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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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
782.5MB
MD5063b9ca09e8024d3cca7b6d5f49c4acb
SHA1985e8c3bf98bee6c46bcd064a9a05910f0400a88
SHA25697bde6296baffac400437f1f87a4adcbf3f687daa2ffe2d82ebbd60ec4d1fd29
SHA512c96ae3ac5e479b939a4db64ddf2fc4cdeae649230663c697b6b3069bb333159236b956bf4892eb268dccdc69023f77dc0dd78c5f3b0b2817474d2cc4dfd28ffe
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Filesize
782.5MB
MD5063b9ca09e8024d3cca7b6d5f49c4acb
SHA1985e8c3bf98bee6c46bcd064a9a05910f0400a88
SHA25697bde6296baffac400437f1f87a4adcbf3f687daa2ffe2d82ebbd60ec4d1fd29
SHA512c96ae3ac5e479b939a4db64ddf2fc4cdeae649230663c697b6b3069bb333159236b956bf4892eb268dccdc69023f77dc0dd78c5f3b0b2817474d2cc4dfd28ffe