Analysis
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max time kernel
155s -
max time network
160s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
28/04/2023, 09:40
Static task
static1
General
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Target
740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe
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Size
453KB
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MD5
bf1e8583fccbc51106c76419c79d7142
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SHA1
b53c88db18b103f018e5d78b8f39e2c46b7cf776
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SHA256
740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e
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SHA512
d10026bbda3be6c344175712192903be53deb0b15d7ebafea7f7fb0f4975ace9a2956502d55ed06aa55f13c530ea7f43a1dc90c59876091a259814ff492c3fe0
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SSDEEP
6144:GnZztWM9SmFeOBo+uMkG+QBdlg8EMrvyaEiwOCXaaE0+xkQ:0ZpWM9SmFeMozMk+Bwb3BROCXaaE5
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__ 54571722147306330577.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 54571722147306330577.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 54571722147306330577.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 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe -
Executes dropped EXE 3 IoCs
pid Process 4604 54571722147306330577.exe 2600 87526386507169810505.exe 3664 ntlhost.exe -
Loads dropped DLL 2 IoCs
pid Process 3676 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe 3676 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.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/0x000c00000002312c-238.dat upx behavioral1/files/0x000c00000002312c-241.dat upx behavioral1/files/0x000c00000002312c-243.dat upx behavioral1/memory/2600-248-0x00000000000B0000-0x0000000000F13000-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" 54571722147306330577.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 54571722147306330577.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4604 54571722147306330577.exe 3664 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 1404 3676 WerFault.exe 82 -
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 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 488 timeout.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 65 Go-http-client/1.1 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3676 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe 3676 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 3676 wrote to memory of 4604 3676 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe 89 PID 3676 wrote to memory of 4604 3676 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe 89 PID 3676 wrote to memory of 2600 3676 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe 91 PID 3676 wrote to memory of 2600 3676 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe 91 PID 2600 wrote to memory of 4284 2600 87526386507169810505.exe 92 PID 2600 wrote to memory of 4284 2600 87526386507169810505.exe 92 PID 4284 wrote to memory of 4888 4284 cmd.exe 94 PID 4284 wrote to memory of 4888 4284 cmd.exe 94 PID 3676 wrote to memory of 4680 3676 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe 96 PID 3676 wrote to memory of 4680 3676 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe 96 PID 3676 wrote to memory of 4680 3676 740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe 96 PID 4680 wrote to memory of 488 4680 cmd.exe 99 PID 4680 wrote to memory of 488 4680 cmd.exe 99 PID 4680 wrote to memory of 488 4680 cmd.exe 99 PID 4604 wrote to memory of 3664 4604 54571722147306330577.exe 101 PID 4604 wrote to memory of 3664 4604 54571722147306330577.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe"C:\Users\Admin\AppData\Local\Temp\740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3676 -
C:\ProgramData\54571722147306330577.exe"C:\ProgramData\54571722147306330577.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:4604 -
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:3664
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C:\ProgramData\87526386507169810505.exe"C:\ProgramData\87526386507169810505.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2600 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /C choice /C Y /N /D Y /T 0 &Del C:\ProgramData\87526386507169810505.exe3⤵
- Suspicious use of WriteProcessMemory
PID:4284 -
C:\Windows\system32\choice.exechoice /C Y /N /D Y /T 04⤵PID:4888
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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\740d3871d069127121f80d2e44309c2a8ebb61b46a218c5a46c62b897b86988e.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:4680 -
C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
PID:488
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3676 -s 21282⤵
- Program crash
PID:1404
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3676 -ip 36761⤵PID:4492
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
799.7MB
MD542527428301d220b0a4f935221770c65
SHA143d34f1ee7f8d92615c4f02915551477bc2600e6
SHA256e98166f64a88272af65d6c1cc2ce0c825a32733a645612cb36652622cb739162
SHA512f21b57d359cc9a9d2d8c3adc53734e2b8bad03b997e2f12ea1ff1c92b5862acdd3a5fe3ed1c5eaa6ca1d9fd80bc871be7e35991f6361f357a8e323b8e4fe574b
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Filesize
799.5MB
MD55e686224e6fa4b5ae22212121a1752be
SHA1968596320a045ec11ee5c7287010b1c13121795b
SHA256d9ba6ae0b93e8a945c71631d804101f748c375729da31926eefeda141409e071
SHA512a85293d42bacf8c1538bddc3abf26467327515824e1ea99ee85b495adf017bfd87351934eb354dc66a024ac8432a3c4b1edc97b2a879808795406a2dbe9a43a4