Analysis
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max time kernel
138s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
10/03/2023, 03:58
Static task
static1
Behavioral task
behavioral1
Sample
c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.exe
Resource
win10v2004-20230220-en
General
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Target
c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.exe
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Size
546KB
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MD5
7a8a20f4b011d174eb31c166f50fa0d7
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SHA1
215ebf2fc7aed67527094d174873d96b00295d92
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SHA256
c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11
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SHA512
58d9a89af6b5bbdde16e0fcca907b90362ee231fc66add39b27d67e591770a11c4b4c3e12b6340e283ea4a1241be3a20cecbb3d7613bc671c526be5b5803b4fc
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SSDEEP
12288:rMrBy90NPFBIGO/MewealTvXsYeYJidaIIbaqAE2B6W4n0:uysWweadchQIIbaqAjMWd
Malware Config
Extracted
redline
mango
193.233.20.28:4125
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auth_value
ecf79d7f5227d998a3501c972d915d23
Extracted
redline
dezik
193.56.146.220:4174
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auth_value
d39f21dca8edc10800b036ab83f4d75e
Signatures
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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection b4761sl.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" b4761sl.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" b4761sl.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" b4761sl.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" b4761sl.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" b4761sl.exe -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 33 IoCs
resource yara_rule behavioral1/memory/4292-160-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-163-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-161-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-165-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-167-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-169-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-171-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-173-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-175-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-177-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-179-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-181-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-183-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-185-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-187-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-189-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-191-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-193-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-195-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-197-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-199-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-201-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-203-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-205-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-207-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-209-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-211-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-213-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-215-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-217-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-219-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-221-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline behavioral1/memory/4292-223-0x0000000004BC0000-0x0000000004BFE000-memory.dmp family_redline -
Executes dropped EXE 4 IoCs
pid Process 5116 nice9373.exe 2848 b4761sl.exe 4292 c43xD69.exe 3736 dAreI59.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" b4761sl.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 c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.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\\\"" c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce nice9373.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\\\"" nice9373.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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Drops file in System32 directory 8 IoCs
description ioc Process File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{5A9A4EE8-F72F-49D6-A840-DBA9FF371203}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{91374685-6028-48E5-9A4F-546BE3CE9B95}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{F7245174-CFA9-45A4-A073-626F57D172F9}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{F9E3D4AF-87CB-4CBC-B2EA-9847E7C41328}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{DB675BA5-E34C-42A2-B540-834942748442}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{6082ABB9-F527-4522-9110-5505DE735C18}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{919EE519-7982-46CD-BEA8-33950C2DB9A0}.catalogItem svchost.exe File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{9EAFDCBB-633E-4C10-8ACD-EF924AF4108D}.catalogItem svchost.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 3752 4292 WerFault.exe 89 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString svchost.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU svchost.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS svchost.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2848 b4761sl.exe 2848 b4761sl.exe 4292 c43xD69.exe 4292 c43xD69.exe 3736 dAreI59.exe 3736 dAreI59.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2848 b4761sl.exe Token: SeDebugPrivilege 4292 c43xD69.exe Token: SeDebugPrivilege 3736 dAreI59.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2268 wrote to memory of 5116 2268 c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.exe 85 PID 2268 wrote to memory of 5116 2268 c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.exe 85 PID 2268 wrote to memory of 5116 2268 c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.exe 85 PID 5116 wrote to memory of 2848 5116 nice9373.exe 86 PID 5116 wrote to memory of 2848 5116 nice9373.exe 86 PID 5116 wrote to memory of 4292 5116 nice9373.exe 89 PID 5116 wrote to memory of 4292 5116 nice9373.exe 89 PID 5116 wrote to memory of 4292 5116 nice9373.exe 89 PID 2268 wrote to memory of 3736 2268 c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.exe 95 PID 2268 wrote to memory of 3736 2268 c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.exe 95 PID 2268 wrote to memory of 3736 2268 c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.exe 95 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.exe"C:\Users\Admin\AppData\Local\Temp\c0fe10aaf9641f0240314095eebb0861f73f28429c8c2d27c0bb3886b2658d11.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2268 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nice9373.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\nice9373.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5116 -
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\b4761sl.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\b4761sl.exe3⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2848
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C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\c43xD69.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\c43xD69.exe3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4292 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 13524⤵
- Program crash
PID:3752
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dAreI59.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dAreI59.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3736
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:4572
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4292 -ip 42921⤵PID:3632
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
175KB
MD592f2a148b8f701e50e2f838f73d4d7b7
SHA1324d8546e35d4f4285cac15b21620299ba5cb023
SHA2569ad66388140ef3b4a7c2918eb3c9083dd80396949f385dd6d17c28f97cf14f04
SHA5123300c7606f872e75deaff924ee77fcd975e515a0dbca907ddd16b25910f250c6b8c46c6cabda3ac4780a8dce5fb9a70bd0c4c184f649cd5375fb6278b2a0ea6c
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Filesize
175KB
MD592f2a148b8f701e50e2f838f73d4d7b7
SHA1324d8546e35d4f4285cac15b21620299ba5cb023
SHA2569ad66388140ef3b4a7c2918eb3c9083dd80396949f385dd6d17c28f97cf14f04
SHA5123300c7606f872e75deaff924ee77fcd975e515a0dbca907ddd16b25910f250c6b8c46c6cabda3ac4780a8dce5fb9a70bd0c4c184f649cd5375fb6278b2a0ea6c
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Filesize
402KB
MD5809fedd3f85ade64515768c02299854b
SHA16e04889a9209e3c3f4d94a0fb1bc48977eabb253
SHA2564beab57331d515c75cb5bc638586169eb17dc6113879abc7dd34eaedbb031422
SHA5125707707b5bd28934b8958e04ff0273a98c327d80177808396b0fb2640c9a760dbf4093f73181d94078b6584dde5ecaea743741930386cadddd0dbded45ffe8cc
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Filesize
402KB
MD5809fedd3f85ade64515768c02299854b
SHA16e04889a9209e3c3f4d94a0fb1bc48977eabb253
SHA2564beab57331d515c75cb5bc638586169eb17dc6113879abc7dd34eaedbb031422
SHA5125707707b5bd28934b8958e04ff0273a98c327d80177808396b0fb2640c9a760dbf4093f73181d94078b6584dde5ecaea743741930386cadddd0dbded45ffe8cc
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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
367KB
MD5b027ebb3e70d7bc51c75bbdfd85ea392
SHA189bea40a9f34e998af07884e9a3da1df21037b2a
SHA2560c7a52e23934ed22905ccf78982f546ab0a36f92cdc64bf1cfddc7b4cb02d0e3
SHA5124d51137bd5c210f57198dd9f08858415ec2b5f4cd4324651bbc4b0127fbcfb1486b4f5f2add49602afeb340675ba3f37344ccf3d728039dabf3411bd547f0a4c
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Filesize
367KB
MD5b027ebb3e70d7bc51c75bbdfd85ea392
SHA189bea40a9f34e998af07884e9a3da1df21037b2a
SHA2560c7a52e23934ed22905ccf78982f546ab0a36f92cdc64bf1cfddc7b4cb02d0e3
SHA5124d51137bd5c210f57198dd9f08858415ec2b5f4cd4324651bbc4b0127fbcfb1486b4f5f2add49602afeb340675ba3f37344ccf3d728039dabf3411bd547f0a4c