Analysis
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max time kernel
147s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
06-08-2024 14:27
Behavioral task
behavioral1
Sample
0x00080000000162ed-1051.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
0x00080000000162ed-1051.exe
Resource
win10v2004-20240802-en
General
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Target
0x00080000000162ed-1051.exe
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Size
45KB
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MD5
3b86abe4c79286ed06965c268968c03d
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SHA1
64afe64ee719aa3526023a5f7edacd44db21bde4
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SHA256
47a46de105177d826cbda74051f7f9d7bb95ed079c2e636743f9f04ad8c6c4a7
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SHA512
68f108646437fd72622cd1f719b2092b095e67500502981c4b605c64acaa38c12f46a82e47318b405137e5112ff82ccb51bfbb953b67fd3d1e9a5de1c2874483
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SSDEEP
768:juAKNTR4ydbWUnrGJmo2q7zL5P02FUFdxYkk8PIWzjbAgX3ih8QNd4sqyVUbGKZ9:juAKNTRZ22oLDmWBW3bnXSh8QN6sqEWh
Malware Config
Extracted
asyncrat
0.5.8
blue.o7lab.me:7777
server.underground-cheat.xyz:7777
dtDtRWyW1m1g
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delay
3
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install
false
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install_file
$77WinUpdate.exe
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install_folder
%AppData%
Extracted
redline
server.underground-cheat.xyz
server.underground-cheat.xyz:1337
Signatures
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 2 IoCs
resource yara_rule behavioral2/files/0x0007000000023485-1094.dat family_redline behavioral2/memory/4412-1097-0x0000000000020000-0x000000000003E000-memory.dmp family_redline -
SectopRAT payload 2 IoCs
resource yara_rule behavioral2/files/0x0007000000023485-1094.dat family_sectoprat behavioral2/memory/4412-1097-0x0000000000020000-0x000000000003E000-memory.dmp family_sectoprat -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation 0x00080000000162ed-1051.exe Key value queried \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation koalde.exe -
Executes dropped EXE 2 IoCs
pid Process 3588 koalde.exe 4412 rewnaa.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Twhyp = "C:\\Users\\Admin\\AppData\\Local\\Twhyp.exe" koalde.exe -
pid Process 4496 powershell.exe 2368 powershell.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 11 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rewnaa.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ipconfig.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 0x00080000000162ed-1051.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language koalde.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ipconfig.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Gathers network information 2 TTPs 2 IoCs
Uses commandline utility to view network configuration.
pid Process 2280 ipconfig.exe 3528 ipconfig.exe -
Suspicious behavior: EnumeratesProcesses 27 IoCs
pid Process 4496 powershell.exe 3332 0x00080000000162ed-1051.exe 4496 powershell.exe 2368 powershell.exe 2368 powershell.exe 3332 0x00080000000162ed-1051.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe 3588 koalde.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 3332 0x00080000000162ed-1051.exe Token: SeDebugPrivilege 4496 powershell.exe Token: SeDebugPrivilege 3588 koalde.exe Token: SeDebugPrivilege 2368 powershell.exe Token: SeDebugPrivilege 4412 rewnaa.exe Token: SeDebugPrivilege 3588 koalde.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 3332 wrote to memory of 448 3332 0x00080000000162ed-1051.exe 87 PID 3332 wrote to memory of 448 3332 0x00080000000162ed-1051.exe 87 PID 3332 wrote to memory of 448 3332 0x00080000000162ed-1051.exe 87 PID 448 wrote to memory of 4496 448 cmd.exe 89 PID 448 wrote to memory of 4496 448 cmd.exe 89 PID 448 wrote to memory of 4496 448 cmd.exe 89 PID 4496 wrote to memory of 3588 4496 powershell.exe 90 PID 4496 wrote to memory of 3588 4496 powershell.exe 90 PID 4496 wrote to memory of 3588 4496 powershell.exe 90 PID 3588 wrote to memory of 2520 3588 koalde.exe 92 PID 3588 wrote to memory of 2520 3588 koalde.exe 92 PID 3588 wrote to memory of 2520 3588 koalde.exe 92 PID 3332 wrote to memory of 740 3332 0x00080000000162ed-1051.exe 94 PID 3332 wrote to memory of 740 3332 0x00080000000162ed-1051.exe 94 PID 3332 wrote to memory of 740 3332 0x00080000000162ed-1051.exe 94 PID 2520 wrote to memory of 2280 2520 cmd.exe 96 PID 2520 wrote to memory of 2280 2520 cmd.exe 96 PID 2520 wrote to memory of 2280 2520 cmd.exe 96 PID 740 wrote to memory of 2368 740 cmd.exe 97 PID 740 wrote to memory of 2368 740 cmd.exe 97 PID 740 wrote to memory of 2368 740 cmd.exe 97 PID 2368 wrote to memory of 4412 2368 powershell.exe 98 PID 2368 wrote to memory of 4412 2368 powershell.exe 98 PID 2368 wrote to memory of 4412 2368 powershell.exe 98 PID 3588 wrote to memory of 4304 3588 koalde.exe 102 PID 3588 wrote to memory of 4304 3588 koalde.exe 102 PID 3588 wrote to memory of 4304 3588 koalde.exe 102 PID 3588 wrote to memory of 4304 3588 koalde.exe 102 PID 3588 wrote to memory of 4892 3588 koalde.exe 103 PID 3588 wrote to memory of 4892 3588 koalde.exe 103 PID 3588 wrote to memory of 4892 3588 koalde.exe 103 PID 3588 wrote to memory of 4892 3588 koalde.exe 103 PID 3588 wrote to memory of 4748 3588 koalde.exe 104 PID 3588 wrote to memory of 4748 3588 koalde.exe 104 PID 3588 wrote to memory of 4748 3588 koalde.exe 104 PID 3588 wrote to memory of 4748 3588 koalde.exe 104 PID 3588 wrote to memory of 3236 3588 koalde.exe 105 PID 3588 wrote to memory of 3236 3588 koalde.exe 105 PID 3588 wrote to memory of 3236 3588 koalde.exe 105 PID 3588 wrote to memory of 3236 3588 koalde.exe 105 PID 3588 wrote to memory of 4272 3588 koalde.exe 106 PID 3588 wrote to memory of 4272 3588 koalde.exe 106 PID 3588 wrote to memory of 4272 3588 koalde.exe 106 PID 3588 wrote to memory of 4272 3588 koalde.exe 106 PID 3588 wrote to memory of 1896 3588 koalde.exe 107 PID 3588 wrote to memory of 1896 3588 koalde.exe 107 PID 3588 wrote to memory of 1896 3588 koalde.exe 107 PID 3588 wrote to memory of 1896 3588 koalde.exe 107 PID 3588 wrote to memory of 4756 3588 koalde.exe 108 PID 3588 wrote to memory of 4756 3588 koalde.exe 108 PID 3588 wrote to memory of 4756 3588 koalde.exe 108 PID 3588 wrote to memory of 4756 3588 koalde.exe 108 PID 3588 wrote to memory of 3928 3588 koalde.exe 109 PID 3588 wrote to memory of 3928 3588 koalde.exe 109 PID 3588 wrote to memory of 3928 3588 koalde.exe 109 PID 3588 wrote to memory of 3928 3588 koalde.exe 109 PID 3588 wrote to memory of 2972 3588 koalde.exe 110 PID 3588 wrote to memory of 2972 3588 koalde.exe 110 PID 3588 wrote to memory of 2972 3588 koalde.exe 110 PID 3588 wrote to memory of 2972 3588 koalde.exe 110 PID 3588 wrote to memory of 1920 3588 koalde.exe 111 PID 3588 wrote to memory of 1920 3588 koalde.exe 111 PID 3588 wrote to memory of 1920 3588 koalde.exe 111 PID 3588 wrote to memory of 1920 3588 koalde.exe 111
Processes
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C:\Users\Admin\AppData\Local\Temp\0x00080000000162ed-1051.exe"C:\Users\Admin\AppData\Local\Temp\0x00080000000162ed-1051.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3332 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\koalde.exe"' & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:448 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\koalde.exe"'3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4496 -
C:\Users\Admin\AppData\Local\Temp\koalde.exe"C:\Users\Admin\AppData\Local\Temp\koalde.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3588 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ipconfig /release5⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2520 -
C:\Windows\SysWOW64\ipconfig.exeipconfig /release6⤵
- System Location Discovery: System Language Discovery
- Gathers network information
PID:2280
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"5⤵PID:4304
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"5⤵PID:4892
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"5⤵PID:4748
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"5⤵PID:3236
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"5⤵PID:4272
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"5⤵PID:1896
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"5⤵PID:4756
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"5⤵PID:3928
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"5⤵PID:2972
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"5⤵PID:1920
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ipconfig /renew5⤵
- System Location Discovery: System Language Discovery
PID:2964 -
C:\Windows\SysWOW64\ipconfig.exeipconfig /renew6⤵
- System Location Discovery: System Language Discovery
- Gathers network information
PID:3528
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\rewnaa.exe"' & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:740 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\rewnaa.exe"'3⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2368 -
C:\Users\Admin\AppData\Local\Temp\rewnaa.exe"C:\Users\Admin\AppData\Local\Temp\rewnaa.exe"4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4412
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD5def65711d78669d7f8e69313be4acf2e
SHA16522ebf1de09eeb981e270bd95114bc69a49cda6
SHA256aa1c97cdbce9a848f1db2ad483f19caa535b55a3a1ef2ad1260e0437002bc82c
SHA51205b2f9cd9bc3b46f52fded320b68e05f79b2b3ceaeb13e5d87ae9f8cd8e6c90bbb4ffa4da8192c2bfe0f58826cabff2e99e7c5cc8dd47037d4eb7bfc6f2710a7
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Filesize
15KB
MD5584d6fd233880ade0e1b046c886fee6a
SHA15d0cbe7af7e6b4006149b2a53e9c9e9716505551
SHA25689efc673a5e49754d199254e32e86fe98fd57e28cc5aebe0e2b4d5211d6a40b3
SHA51297de98281af5f9cd4bc6106f84eada8ad67917e151d1b637e35c4f836a38834d1d11f65dc054722a01e001a6baa5f6ea53329945726219b37b8c29fd580991db
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1.5MB
MD53ccc507ced5e51c1cf03a2f7e38ff18a
SHA1b121b76a0f425a029b49ba8e866818408a1395b9
SHA256b9c141bd767a6c2a5d4a539017840631f59563bf541c8e62b8b9718e076170d6
SHA5129a38d89659e2996b6a62ed0acdcedb532f1a073cd803c904305b39190e0b860a0dd50483845f288e35cb3c91a6ff499977f30d39d196b34800afc6ee38a5edbb
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Filesize
95KB
MD5bcbcb79606c1833ccef6ca77a7535936
SHA10fcbf9cd7ad1963736afac84cc56069654df3d42
SHA256ce13808dad8149017d9dbc146681a99cd79aaa1288f890c9120a47c347c9db29
SHA51220a3aa8046c8e3c93a9a55aa3750088da247abb11444883f8463aef0d347520c697067b5a8491de204310660cdb632b828d58898e4f65fd385cb1ec2da752391