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Analysis
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max time kernel
118s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
08/03/2023, 09:46
Static task
static1
Behavioral task
behavioral1
Sample
309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725.exe
Resource
win10v2004-20230220-en
General
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Target
309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725.exe
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Size
386KB
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MD5
c305e6650b98adee8f9e425f3a47c6bb
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SHA1
28303ddb68187fe55e9c0386198a970850aa6f2f
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SHA256
309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725
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SHA512
a690bcffe5e824f01c9ecf894da069b07f880177342edbfd1bed0856eb695c930b89d0825c6b5cee69954ba4c0a7c4781fdfd3800d9eb1ed1f3afa48f7563c14
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SSDEEP
6144:KXy+bnr+dp0yN90QExYJF0rvl+rDXKFVB2b1I5lWf8b27LKm19NV3dO/ko9U3dC:pMrJy90QE+HKpC1KWkb2/D3dO8o9U3I
Malware Config
Extracted
redline
fud
193.233.20.27:4123
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auth_value
cddc991efd6918ad5321d80dac884b40
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" s5373Os.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" s5373Os.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" s5373Os.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" s5373Os.exe Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection s5373Os.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" s5373Os.exe -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 34 IoCs
resource yara_rule behavioral1/memory/4864-148-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-149-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-151-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-153-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-155-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-157-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-159-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-161-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-163-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-165-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-167-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-172-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-174-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-176-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-178-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-180-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-182-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-184-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-186-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-188-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-192-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-190-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-194-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-196-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-198-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-200-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-202-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-204-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-206-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-208-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-210-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-212-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-214-0x0000000004B60000-0x0000000004B9E000-memory.dmp family_redline behavioral1/memory/4864-1065-0x0000000004BD0000-0x0000000004BE0000-memory.dmp family_redline -
Executes dropped EXE 2 IoCs
pid Process 1448 s5373Os.exe 4864 t23NP98.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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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" s5373Os.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce 309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725.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\\\"" 309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725.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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Program crash 1 IoCs
pid pid_target Process procid_target 2088 4864 WerFault.exe 86 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1448 s5373Os.exe 1448 s5373Os.exe 4864 t23NP98.exe 4864 t23NP98.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1448 s5373Os.exe Token: SeDebugPrivilege 4864 t23NP98.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 1628 wrote to memory of 1448 1628 309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725.exe 85 PID 1628 wrote to memory of 1448 1628 309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725.exe 85 PID 1628 wrote to memory of 4864 1628 309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725.exe 86 PID 1628 wrote to memory of 4864 1628 309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725.exe 86 PID 1628 wrote to memory of 4864 1628 309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725.exe"C:\Users\Admin\AppData\Local\Temp\309b4eb9e194a38fe2961d425ccee95ce758628b5f79175455f4f4c927e56725.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1628 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\s5373Os.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\s5373Os.exe2⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1448
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\t23NP98.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\t23NP98.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4864 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4864 -s 13643⤵
- Program crash
PID:2088
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4864 -ip 48641⤵PID:2468
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
11KB
MD57e93bacbbc33e6652e147e7fe07572a0
SHA1421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91
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Filesize
11KB
MD57e93bacbbc33e6652e147e7fe07572a0
SHA1421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91
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Filesize
301KB
MD51b1b7303d84d7476338a36be315cf17d
SHA1cf0860478e62fc7ae6ba3c677a666b5102380245
SHA256d3f8b9ca52931ea88524319a7d1acaa2e261f4303c66baa32ea3a3f02c370cf8
SHA512f690aec4e5d2ecdcf729348028790bb7c263b89f9e7da762f77f8af7274f39310dcac222cf15fcdec143e05d3540a7650ca7006fe006ecd26b02c22448cf070d
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Filesize
301KB
MD51b1b7303d84d7476338a36be315cf17d
SHA1cf0860478e62fc7ae6ba3c677a666b5102380245
SHA256d3f8b9ca52931ea88524319a7d1acaa2e261f4303c66baa32ea3a3f02c370cf8
SHA512f690aec4e5d2ecdcf729348028790bb7c263b89f9e7da762f77f8af7274f39310dcac222cf15fcdec143e05d3540a7650ca7006fe006ecd26b02c22448cf070d