Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
26-05-2024 03:00
Static task
static1
Behavioral task
behavioral1
Sample
cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802.exe
Resource
win10v2004-20240426-en
General
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Target
cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802.exe
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Size
428KB
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MD5
30ac662890bb415c9c50265dc9948487
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SHA1
8db12a314ba9f7b903f0c8b9c6092bb6aa50a969
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SHA256
cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802
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SHA512
2c172b2890f4eb835657a7d0d1445c78027d4656979a5ce99043c84253e976531b0631add61780bed525b1685625ddab8c13a43103d8f16b9e8f79e5e02bb8d0
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SSDEEP
12288:qMr7y90ZYy6MWEMC4ycO7woKGES3HqS45Ej:1yQWEbn2oZ6STj
Malware Config
Extracted
redline
mucha
83.97.73.131:19071
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auth_value
5d76e123341992ecf110010eb89456f0
Signatures
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Detects Healer an antivirus disabler dropper 4 IoCs
resource yara_rule behavioral1/memory/1928-15-0x0000000000590000-0x000000000059A000-memory.dmp healer behavioral1/memory/1928-20-0x0000000000400000-0x000000000042B000-memory.dmp healer behavioral1/files/0x000700000002342c-25.dat healer behavioral1/memory/4928-26-0x0000000000250000-0x000000000025A000-memory.dmp healer -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" a5676150.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" a5676150.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" b8803570.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection a5676150.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" a5676150.exe Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection b8803570.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" b8803570.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" b8803570.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" b8803570.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" b8803570.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" a5676150.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" a5676150.exe -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 1 IoCs
resource yara_rule behavioral1/memory/4224-32-0x0000000000520000-0x0000000000550000-memory.dmp family_redline -
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 4 IoCs
resource yara_rule behavioral1/memory/1928-15-0x0000000000590000-0x000000000059A000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/1928-20-0x0000000000400000-0x000000000042B000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/files/0x000700000002342c-25.dat INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/4928-26-0x0000000000250000-0x000000000025A000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender -
Detects executables packed with ConfuserEx Mod 1 IoCs
resource yara_rule behavioral1/memory/4224-32-0x0000000000520000-0x0000000000550000-memory.dmp INDICATOR_EXE_Packed_ConfuserEx -
Executes dropped EXE 4 IoCs
pid Process 1716 v9565707.exe 1928 a5676150.exe 4928 b8803570.exe 4224 c0627942.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features a5676150.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" a5676150.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" b8803570.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process 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\\\"" cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802.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\\\"" v9565707.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1928 a5676150.exe 1928 a5676150.exe 4928 b8803570.exe 4928 b8803570.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1928 a5676150.exe Token: SeDebugPrivilege 4928 b8803570.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1824 wrote to memory of 1716 1824 cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802.exe 83 PID 1824 wrote to memory of 1716 1824 cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802.exe 83 PID 1824 wrote to memory of 1716 1824 cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802.exe 83 PID 1716 wrote to memory of 1928 1716 v9565707.exe 84 PID 1716 wrote to memory of 1928 1716 v9565707.exe 84 PID 1716 wrote to memory of 1928 1716 v9565707.exe 84 PID 1716 wrote to memory of 4928 1716 v9565707.exe 99 PID 1716 wrote to memory of 4928 1716 v9565707.exe 99 PID 1824 wrote to memory of 4224 1824 cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802.exe 101 PID 1824 wrote to memory of 4224 1824 cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802.exe 101 PID 1824 wrote to memory of 4224 1824 cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802.exe"C:\Users\Admin\AppData\Local\Temp\cb679b107080f114f53042c8cdf9a3230582c84ddafe233cb7b53c2038d1d802.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1824 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v9565707.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v9565707.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\a5676150.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\a5676150.exe3⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1928
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C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\b8803570.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\b8803570.exe3⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4928
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c0627942.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\c0627942.exe2⤵
- Executes dropped EXE
PID:4224
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
226B
MD5916851e072fbabc4796d8916c5131092
SHA1d48a602229a690c512d5fdaf4c8d77547a88e7a2
SHA2567e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d
SHA51207ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521
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Filesize
269KB
MD555966a10faa6e36cb8a2d68f55b18d57
SHA13af6d772846a959014b4b691ac4cc432b4b4705f
SHA256cfc872c8eb57d781791c0b30366e76a5760289a5e57447b302fb2cdcbdb199aa
SHA5128456c3cf40aa9428bf4e0962a548957ed2412781422f973be7c7dde44487d8227ebfb564d6d13ed74c81409db3dc66e9f0e60ee1401affa2f9a7a57740258b56
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Filesize
227KB
MD58488d8cdffec88932160da156cf58aa2
SHA1b6d8d5d15485f8da66ac0ddc48deaf04c2a66044
SHA2566f44108568d0ec0f240c4f3b9d3b941fba9a5170686636c1eb5e879d85b99783
SHA512add9da1681aee1f485043ce7711f610a4ab6c72a39e9cde644d30956bd8e7f37d474c38c4fd3cf2d5b934fc0fe41093e87c643df10c7b59bda84b9d8f8030ed8
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Filesize
176KB
MD5211a06e9ae68ced1234252a48696431b
SHA169950e2ee2fafd177d1a295836713bfd8d18df9c
SHA2560bdca9c84103454e329cfde4e69dc41a0ec0196c078c8fc195b0fa739d2f905d
SHA512b1643ba376075619335b4bdf0d7610aece13b7c9db60eecb508465f97ef3e6a9d5297f9ac8529886efa052cdd8814ac7d4eeab44812f797a1b2dc5fa967ee7eb
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Filesize
11KB
MD57e93bacbbc33e6652e147e7fe07572a0
SHA1421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91