Analysis
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max time kernel
160s -
max time network
163s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
01/05/2023, 19:22
Static task
static1
Behavioral task
behavioral1
Sample
f83c1cf0031800da5282ea2328e6bc91b05edfcc43218abb6e36f4bfb7f5a946.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
f83c1cf0031800da5282ea2328e6bc91b05edfcc43218abb6e36f4bfb7f5a946.exe
Resource
win10v2004-20230220-en
General
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Target
f83c1cf0031800da5282ea2328e6bc91b05edfcc43218abb6e36f4bfb7f5a946.exe
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Size
696KB
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MD5
984336ab7ba353232599dbc9d55867af
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SHA1
561d59f0bdeae3b62b02a4b17e2a44392d64903b
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SHA256
f83c1cf0031800da5282ea2328e6bc91b05edfcc43218abb6e36f4bfb7f5a946
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SHA512
14a55e866600da6100ba8655e75cf791bc0368c41db25e84a65c22d5ce06f879c66bce14e5967943a4f70d330446581f506e13425067a94591ba7e05bd03e031
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SSDEEP
12288:Uy90EV+NfmvfWjlYzB/wV+RfdHg11II2fUm7ISPV8v1F0Urix:Uyh5CSzBCEyH45paNuUrY
Malware Config
Signatures
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Detects Redline Stealer samples 1 IoCs
This rule detects the presence of Redline Stealer samples based on their unique strings.
resource yara_rule behavioral2/memory/452-990-0x0000000009C50000-0x000000000A268000-memory.dmp redline_stealer -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection 32039383.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" 32039383.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" 32039383.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" 32039383.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" 32039383.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" 32039383.exe -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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Executes dropped EXE 3 IoCs
pid Process 3468 un028373.exe 2084 32039383.exe 452 rk205281.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" 32039383.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features 32039383.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce f83c1cf0031800da5282ea2328e6bc91b05edfcc43218abb6e36f4bfb7f5a946.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" f83c1cf0031800da5282ea2328e6bc91b05edfcc43218abb6e36f4bfb7f5a946.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce un028373.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\"" un028373.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 740 2084 WerFault.exe 84 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2084 32039383.exe 2084 32039383.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2084 32039383.exe Token: SeDebugPrivilege 452 rk205281.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4764 wrote to memory of 3468 4764 f83c1cf0031800da5282ea2328e6bc91b05edfcc43218abb6e36f4bfb7f5a946.exe 83 PID 4764 wrote to memory of 3468 4764 f83c1cf0031800da5282ea2328e6bc91b05edfcc43218abb6e36f4bfb7f5a946.exe 83 PID 4764 wrote to memory of 3468 4764 f83c1cf0031800da5282ea2328e6bc91b05edfcc43218abb6e36f4bfb7f5a946.exe 83 PID 3468 wrote to memory of 2084 3468 un028373.exe 84 PID 3468 wrote to memory of 2084 3468 un028373.exe 84 PID 3468 wrote to memory of 2084 3468 un028373.exe 84 PID 3468 wrote to memory of 452 3468 un028373.exe 88 PID 3468 wrote to memory of 452 3468 un028373.exe 88 PID 3468 wrote to memory of 452 3468 un028373.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\f83c1cf0031800da5282ea2328e6bc91b05edfcc43218abb6e36f4bfb7f5a946.exe"C:\Users\Admin\AppData\Local\Temp\f83c1cf0031800da5282ea2328e6bc91b05edfcc43218abb6e36f4bfb7f5a946.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un028373.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\un028373.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3468 -
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\32039383.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\32039383.exe3⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2084 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2084 -s 10804⤵
- Program crash
PID:740
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C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk205281.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\rk205281.exe3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:452
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2084 -ip 20841⤵PID:4128
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
542KB
MD5415da03fb8943963a03d39b6521d8ece
SHA1a64aa7cee05e1fd46016dc1823f41f5d8b9d7ca0
SHA256248c3560ee6a5b2dbcdafb029b6c34b67f20c8282671558dfcc036c833b4c92b
SHA5129712048841cd454654320bebeedab791346d66a9107c80e1b13d95d672ae663ed337961ccdb8947abd6ad715fe2e28354412f732c997c591715813cc91d21845
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Filesize
542KB
MD5415da03fb8943963a03d39b6521d8ece
SHA1a64aa7cee05e1fd46016dc1823f41f5d8b9d7ca0
SHA256248c3560ee6a5b2dbcdafb029b6c34b67f20c8282671558dfcc036c833b4c92b
SHA5129712048841cd454654320bebeedab791346d66a9107c80e1b13d95d672ae663ed337961ccdb8947abd6ad715fe2e28354412f732c997c591715813cc91d21845
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Filesize
263KB
MD5d95b06f12a70a3d1b8b2c091c9a79092
SHA186e4e3f3fc4d32c91607d9772d9f47f393c56cfb
SHA2567b6edf18238ebc272b48003f68bb1269abe510f36067d8f5168c68804fd675ff
SHA512cd33c5860024264af8698cfea9ee0e31318e9ed9a9e5dd629bf86cd973bff738c9051cc31d56ba81c217428111feea9fd0b4081c86060b439dec6a52d57f3dfa
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Filesize
263KB
MD5d95b06f12a70a3d1b8b2c091c9a79092
SHA186e4e3f3fc4d32c91607d9772d9f47f393c56cfb
SHA2567b6edf18238ebc272b48003f68bb1269abe510f36067d8f5168c68804fd675ff
SHA512cd33c5860024264af8698cfea9ee0e31318e9ed9a9e5dd629bf86cd973bff738c9051cc31d56ba81c217428111feea9fd0b4081c86060b439dec6a52d57f3dfa
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Filesize
328KB
MD5664b98d907551d721e6ce274594edf76
SHA14919097d43a27d7cb57e5277e9e3a4a5f6e24378
SHA25640ce43f5a2b7ab8295aafe5284e53fe7d3002178eae9901f4ea648fed34739f6
SHA5122842274fec8072d7adbee0f0d693776ffea622f0db04bfdfef51adad9698a7ee811b52aa0449bd710c415351295e6703984cba219de5fbef7a6d0e17ff27b520
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Filesize
328KB
MD5664b98d907551d721e6ce274594edf76
SHA14919097d43a27d7cb57e5277e9e3a4a5f6e24378
SHA25640ce43f5a2b7ab8295aafe5284e53fe7d3002178eae9901f4ea648fed34739f6
SHA5122842274fec8072d7adbee0f0d693776ffea622f0db04bfdfef51adad9698a7ee811b52aa0449bd710c415351295e6703984cba219de5fbef7a6d0e17ff27b520