Analysis
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max time kernel
77s -
max time network
128s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
22-03-2023 08:27
Static task
static1
Behavioral task
behavioral1
Sample
bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.exe
Resource
win10v2004-20230220-en
General
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Target
bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.exe
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Size
537KB
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MD5
a62c8524de36f1d93e2d8a41f5f9e58d
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SHA1
4065b780c644e41cbe9e5fe11501615d3f4a571f
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SHA256
bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd
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SHA512
9861e04cab8c0d88dae5866da9c27c9d170d4ef7a86af255dd9bd37733f89de0f6fc5a4cae6a1f288c415af401ad8bbde7aaf216f4559d0fb5a56fa541bae416
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SSDEEP
12288:wMrWy90XlUkTgH7bb5gSSPcozlhbDxhL0xYnGmKFSp0iW:2yYlZsCSSRl9ExY7KQtW
Malware Config
Extracted
redline
down
193.233.20.31:4125
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auth_value
12c31a90c72f5efae8c053a0bd339381
Extracted
redline
polo
193.233.20.31:4125
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auth_value
f1a1b1041a864e0f1f788d42ececa8b3
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" pro6736.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" pro6736.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" pro6736.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" pro6736.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" pro6736.exe Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection pro6736.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/2344-154-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-157-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-155-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-159-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-161-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-163-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-166-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-170-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-171-0x0000000004B40000-0x0000000004B50000-memory.dmp family_redline behavioral1/memory/2344-173-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-175-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-177-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-179-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-181-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-183-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-185-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-187-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-189-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-191-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-193-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-195-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-197-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-199-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-201-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-203-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-205-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-207-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-209-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-211-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-213-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-215-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-217-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-219-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline behavioral1/memory/2344-221-0x0000000004AA0000-0x0000000004ADE000-memory.dmp family_redline -
Executes dropped EXE 4 IoCs
pid Process 2392 unio5761.exe 3112 pro6736.exe 2344 qu1805.exe 3836 si004018.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" pro6736.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.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\\\"" bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce unio5761.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\\\"" unio5761.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 3896 2344 WerFault.exe 93 -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3112 pro6736.exe 3112 pro6736.exe 2344 qu1805.exe 2344 qu1805.exe 3836 si004018.exe 3836 si004018.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3112 pro6736.exe Token: SeDebugPrivilege 2344 qu1805.exe Token: SeDebugPrivilege 3836 si004018.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4496 wrote to memory of 2392 4496 bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.exe 85 PID 4496 wrote to memory of 2392 4496 bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.exe 85 PID 4496 wrote to memory of 2392 4496 bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.exe 85 PID 2392 wrote to memory of 3112 2392 unio5761.exe 86 PID 2392 wrote to memory of 3112 2392 unio5761.exe 86 PID 2392 wrote to memory of 2344 2392 unio5761.exe 93 PID 2392 wrote to memory of 2344 2392 unio5761.exe 93 PID 2392 wrote to memory of 2344 2392 unio5761.exe 93 PID 4496 wrote to memory of 3836 4496 bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.exe 104 PID 4496 wrote to memory of 3836 4496 bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.exe 104 PID 4496 wrote to memory of 3836 4496 bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.exe"C:\Users\Admin\AppData\Local\Temp\bc5a493a5cddf5f020392c0249796454db99ff16b9bcd0cae21798f98387b2cd.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4496 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\unio5761.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\unio5761.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2392 -
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\pro6736.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\pro6736.exe3⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3112
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C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\qu1805.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\qu1805.exe3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2344 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2344 -s 10964⤵
- Program crash
PID:3896
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\si004018.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\si004018.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3836
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2344 -ip 23441⤵PID:3476
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
175KB
MD544a26d7004f8b65e1a8bac0ccac86d6a
SHA130b583c2c04c1167703ae255b4d44b96b411c8ff
SHA25637384f1bfb6d2193e4ece0ed1f6989f9ebd238e7b4582e1aedfa136cdfd07eb9
SHA51217788355a5190ca17ead744cad71ebb7cfc7ceb84625310d31a469af0fbd50b2c304ce969530e99effeb0d23b0530b57a001f02fe918abc40ea68ad336fa187b
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Filesize
175KB
MD544a26d7004f8b65e1a8bac0ccac86d6a
SHA130b583c2c04c1167703ae255b4d44b96b411c8ff
SHA25637384f1bfb6d2193e4ece0ed1f6989f9ebd238e7b4582e1aedfa136cdfd07eb9
SHA51217788355a5190ca17ead744cad71ebb7cfc7ceb84625310d31a469af0fbd50b2c304ce969530e99effeb0d23b0530b57a001f02fe918abc40ea68ad336fa187b
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Filesize
395KB
MD5ad2028f31051877889137549466f8861
SHA178bf35d31e61f7305b18f077efe3d20b13d5f6d3
SHA256ed0e996527d3801f4ae45b35a17dfa33db0b48f49e3e145563f76c1907ff9f94
SHA512ea9e6675a4c0f26debdac8d9814a1d7928c6f72eaa4d8783cfa60a5fa5e343f2886628c49774e7ff7ed678050f45400c5c1c0a37c0d6e51c24e67c0c2ac0bbd8
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Filesize
395KB
MD5ad2028f31051877889137549466f8861
SHA178bf35d31e61f7305b18f077efe3d20b13d5f6d3
SHA256ed0e996527d3801f4ae45b35a17dfa33db0b48f49e3e145563f76c1907ff9f94
SHA512ea9e6675a4c0f26debdac8d9814a1d7928c6f72eaa4d8783cfa60a5fa5e343f2886628c49774e7ff7ed678050f45400c5c1c0a37c0d6e51c24e67c0c2ac0bbd8
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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
470KB
MD5cb6c8915ed8380c6aea6a0d073a59b42
SHA1cf1812fb0f8696e3db7d6e8894d3922f4614bfa8
SHA256c4ee487dd4a2da07762aedefcfa0d6ab6a5c639b797c057403a3170039a91621
SHA5122c7dcbbfc8a9ee3a4ce0df8c3b463a706996b6345e5c040b18a89a8039d4a801078868a16e517626d1c74f7b28223e6f3cd90ac93b3ce213e21ec5d51358c906
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Filesize
470KB
MD5cb6c8915ed8380c6aea6a0d073a59b42
SHA1cf1812fb0f8696e3db7d6e8894d3922f4614bfa8
SHA256c4ee487dd4a2da07762aedefcfa0d6ab6a5c639b797c057403a3170039a91621
SHA5122c7dcbbfc8a9ee3a4ce0df8c3b463a706996b6345e5c040b18a89a8039d4a801078868a16e517626d1c74f7b28223e6f3cd90ac93b3ce213e21ec5d51358c906