Analysis
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max time kernel
146s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
30-04-2023 21:55
Static task
static1
Behavioral task
behavioral1
Sample
bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe
Resource
win7-20230220-en
General
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Target
bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe
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Size
465KB
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MD5
b7810ccf8a876901dfcb4e3cc7d84a99
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SHA1
50b84def52fd89ea9ddd89504d1a11b577d78421
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SHA256
bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3
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SHA512
136607d8327bd1f5fc2701468a41fb3def903afddf964e38af21a0b0806a0580a4c1cf62cd44fa49a0cf875cdd1d86fe0cbf402f16e1283f36ad4365c0ad70b4
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SSDEEP
6144:Kx78YUL4fohghld1eaQauWnZl1wIJRxqC/sleuLfq4:Kx7vUL4fTj5QaZ9HZ/s/LX
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__ 31384005520075622116.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 31384005520075622116.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 31384005520075622116.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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe -
Executes dropped EXE 3 IoCs
pid Process 1660 31384005520075622116.exe 1792 85906762675035264924.exe 2128 ntlhost.exe -
Loads dropped DLL 2 IoCs
pid Process 3760 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe 3760 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.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/0x0006000000023157-244.dat upx behavioral2/files/0x0006000000023157-247.dat upx behavioral2/files/0x0006000000023157-246.dat upx behavioral2/memory/1792-249-0x0000000000A30000-0x0000000001893000-memory.dmp upx behavioral2/memory/1792-250-0x0000000000A30000-0x0000000001893000-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-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" 31384005520075622116.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 31384005520075622116.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 1660 31384005520075622116.exe 2128 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 2464 3760 WerFault.exe 78 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 3560 timeout.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 56 Go-http-client/1.1 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3760 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe 3760 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 3760 wrote to memory of 1660 3760 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe 86 PID 3760 wrote to memory of 1660 3760 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe 86 PID 3760 wrote to memory of 1792 3760 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe 89 PID 3760 wrote to memory of 1792 3760 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe 89 PID 1792 wrote to memory of 2548 1792 85906762675035264924.exe 90 PID 1792 wrote to memory of 2548 1792 85906762675035264924.exe 90 PID 3760 wrote to memory of 3040 3760 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe 92 PID 3760 wrote to memory of 3040 3760 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe 92 PID 3760 wrote to memory of 3040 3760 bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe 92 PID 2548 wrote to memory of 4240 2548 cmd.exe 96 PID 2548 wrote to memory of 4240 2548 cmd.exe 96 PID 3040 wrote to memory of 3560 3040 cmd.exe 97 PID 3040 wrote to memory of 3560 3040 cmd.exe 97 PID 3040 wrote to memory of 3560 3040 cmd.exe 97 PID 1660 wrote to memory of 2128 1660 31384005520075622116.exe 100 PID 1660 wrote to memory of 2128 1660 31384005520075622116.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe"C:\Users\Admin\AppData\Local\Temp\bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3760 -
C:\ProgramData\31384005520075622116.exe"C:\ProgramData\31384005520075622116.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:1660 -
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:2128
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C:\ProgramData\85906762675035264924.exe"C:\ProgramData\85906762675035264924.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1792 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\ProgramData\85906762675035264924.exe3⤵
- Suspicious use of WriteProcessMemory
PID:2548 -
C:\Windows\system32\choice.exechoice /C Y /N /D Y /T 04⤵PID:4240
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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\bf129cec049c6d60b5a2ee6d2b99786e537f13d37a5a8464f0c6c6ef3df64cc3.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
PID:3560
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3760 -s 20962⤵
- Program crash
PID:2464
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3760 -ip 37601⤵PID:3928
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
758.5MB
MD55ce7a4a32e0093ec7afb1e90c41a18cd
SHA1dcadb54a83caac83c220f6c8418c69862b6c6626
SHA2562a9a653e0aca0d53e4e601078ca745799f4f47bc9cf64aec1660df49fc516773
SHA512fb6ac8ff89dfa3b325d8b6b1c60bf217ad6ca1c38a5ecae6331bee5e35dfe9293dc2814e035d0d3b6642a52fb7a70ba95fd5ad24445104df69dbaa2bbee07f71
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Filesize
758.5MB
MD55ce7a4a32e0093ec7afb1e90c41a18cd
SHA1dcadb54a83caac83c220f6c8418c69862b6c6626
SHA2562a9a653e0aca0d53e4e601078ca745799f4f47bc9cf64aec1660df49fc516773
SHA512fb6ac8ff89dfa3b325d8b6b1c60bf217ad6ca1c38a5ecae6331bee5e35dfe9293dc2814e035d0d3b6642a52fb7a70ba95fd5ad24445104df69dbaa2bbee07f71