Analysis
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max time kernel
146s -
max time network
156s -
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 23:52
Static task
static1
Behavioral task
behavioral1
Sample
4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe
Resource
win7-20230220-en
General
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Target
4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe
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Size
473KB
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MD5
53034a726f8eda04a0a7e8e4ab0cbb2b
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SHA1
fd2c47d7f99b5f32518b2f29e27f7410c3313bdd
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SHA256
4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0
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SHA512
efa469c2cdf72f57167490317ec4e09e8acdaee997468e843302a70c2e5511ef1b7098133d14a01fe008eb6a06f27d4da4532596b692e5764536fa77fbd7ea38
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SSDEEP
6144:Y7r6OgqBI0xD99qHyVKxJGJeIB184PUThU0NwjJFJdhaVc5mz0k:Y7OOgqBtTcygIWTm3JXyc5mz0k
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__ 54965758246507123634.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 54965758246507123634.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 54965758246507123634.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-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe -
Executes dropped EXE 3 IoCs
pid Process 2176 54965758246507123634.exe 1936 46801927893862958311.exe 4172 ntlhost.exe -
Loads dropped DLL 2 IoCs
pid Process 2836 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe 2836 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.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/0x0006000000023150-240.dat upx behavioral2/files/0x0006000000023150-245.dat upx behavioral2/files/0x0006000000023150-244.dat upx behavioral2/memory/1936-251-0x0000000000A60000-0x00000000018C3000-memory.dmp upx behavioral2/memory/1936-252-0x0000000000A60000-0x00000000018C3000-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-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" 54965758246507123634.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 54965758246507123634.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2176 54965758246507123634.exe 4172 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 1712 2836 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 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4160 timeout.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 40 Go-http-client/1.1 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2836 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe 2836 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2836 wrote to memory of 2176 2836 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe 84 PID 2836 wrote to memory of 2176 2836 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe 84 PID 2836 wrote to memory of 1936 2836 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe 86 PID 2836 wrote to memory of 1936 2836 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe 86 PID 1936 wrote to memory of 2312 1936 46801927893862958311.exe 87 PID 1936 wrote to memory of 2312 1936 46801927893862958311.exe 87 PID 2312 wrote to memory of 1716 2312 cmd.exe 89 PID 2312 wrote to memory of 1716 2312 cmd.exe 89 PID 2836 wrote to memory of 3808 2836 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe 90 PID 2836 wrote to memory of 3808 2836 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe 90 PID 2836 wrote to memory of 3808 2836 4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe 90 PID 3808 wrote to memory of 4160 3808 cmd.exe 93 PID 3808 wrote to memory of 4160 3808 cmd.exe 93 PID 3808 wrote to memory of 4160 3808 cmd.exe 93 PID 2176 wrote to memory of 4172 2176 54965758246507123634.exe 96 PID 2176 wrote to memory of 4172 2176 54965758246507123634.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe"C:\Users\Admin\AppData\Local\Temp\4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2836 -
C:\ProgramData\54965758246507123634.exe"C:\ProgramData\54965758246507123634.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:2176 -
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:4172
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C:\ProgramData\46801927893862958311.exe"C:\ProgramData\46801927893862958311.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\ProgramData\46801927893862958311.exe3⤵
- Suspicious use of WriteProcessMemory
PID:2312 -
C:\Windows\system32\choice.exechoice /C Y /N /D Y /T 04⤵PID:1716
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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\4b7e84a26c4405d2a704a3d881a0699f631dd59788f0a13f18cd7eecb9edf1a0.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:3808 -
C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
PID:4160
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2836 -s 23082⤵
- Program crash
PID:1712
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 2836 -ip 28361⤵PID:3740
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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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
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
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
383.8MB
MD55f75f180b76b613457eb98f7c33beae2
SHA1d6652d07b73b3b58d8e56730e4974ff0de62a9da
SHA256f66a0dd903ae7669a90a8a59f3fe557bdbad2cbf7d8340f35043e98cfee7bfb2
SHA512c5c0f05c7dedaa46396e4020926d6d38822f8b880c00df487501dddd861c677ba22c229fd82e2076aafff9eeeac4404636ccc4dae9eeb4a4834907f660968a8b
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Filesize
386.6MB
MD56519ab2a66a263737419978411508650
SHA1893090228d2a39bed711b92458fd09bbbed29e77
SHA2563888b88cde804645965dfb235fd8de016a80775aa6b321d69e5cf6ffa26d4d28
SHA512d37996a7e44cd87ea2e2f70eeeb78a94029affc5491fc56c17f441f07cc417412333558274f7a5d909630a54b0944725bfc09a4ca5248436cf6639c14d297e56