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Analysis
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max time kernel
141s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
07/11/2024, 14:44
Static task
static1
Behavioral task
behavioral1
Sample
b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe
Resource
win10v2004-20241007-en
General
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Target
b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe
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Size
723KB
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MD5
b5a5bd864a34b00e3f03fecb2697552b
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SHA1
8180c1f02b9f9b6bf77471d3831b6b31fcb62f42
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SHA256
b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef
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SHA512
a4a444c697b3e534deb7ea6ce90a25cb48ce372f8db345381fa1a64ebe0e29849bd8ddb6ea579cefac9cdefad32486f51de39071c7e46e212f3eab22510ba3e9
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SSDEEP
12288:BMrWy908s/VrdEwMgIEQP3A5I3zkAMXXOaTBrdEYA0pNqbar2SKD54iT:7yS/FdEdwIDkA8XhpdEYAwNAoJiT
Malware Config
Extracted
redline
fukia
193.233.20.13:4136
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auth_value
e5783636fbd9e4f0cf9a017bce02e67e
Signatures
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Detects Healer an antivirus disabler dropper 2 IoCs
resource yara_rule behavioral1/files/0x0032000000023b85-19.dat healer behavioral1/memory/1244-22-0x0000000000AE0000-0x0000000000AEA000-memory.dmp healer -
Healer family
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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection fzu44Wp.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" fzu44Wp.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" fzu44Wp.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" fzu44Wp.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" fzu44Wp.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" fzu44Wp.exe -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 2 IoCs
resource yara_rule behavioral1/files/0x0031000000023b86-26.dat family_redline behavioral1/memory/2440-28-0x00000000007F0000-0x0000000000822000-memory.dmp family_redline -
Redline family
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Executes dropped EXE 4 IoCs
pid Process 3056 sDN53aI.exe 3752 sWq63wK.exe 1244 fzu44Wp.exe 2440 hFh67Hj.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" fzu44Wp.exe -
Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\"" sWq63wK.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\\\"" b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.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\\\"" sDN53aI.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sDN53aI.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sWq63wK.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hFh67Hj.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1244 fzu44Wp.exe 1244 fzu44Wp.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1244 fzu44Wp.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1492 wrote to memory of 3056 1492 b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe 84 PID 1492 wrote to memory of 3056 1492 b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe 84 PID 1492 wrote to memory of 3056 1492 b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe 84 PID 3056 wrote to memory of 3752 3056 sDN53aI.exe 85 PID 3056 wrote to memory of 3752 3056 sDN53aI.exe 85 PID 3056 wrote to memory of 3752 3056 sDN53aI.exe 85 PID 3752 wrote to memory of 1244 3752 sWq63wK.exe 87 PID 3752 wrote to memory of 1244 3752 sWq63wK.exe 87 PID 3752 wrote to memory of 2440 3752 sWq63wK.exe 94 PID 3752 wrote to memory of 2440 3752 sWq63wK.exe 94 PID 3752 wrote to memory of 2440 3752 sWq63wK.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe"C:\Users\Admin\AppData\Local\Temp\b37c7a92be4252134585da6c5cb7f66c996c5a775885353c38511ea349f472ef.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1492 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\sDN53aI.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3056 -
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\sWq63wK.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3752 -
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exeC:\Users\Admin\AppData\Local\Temp\IXP002.TMP\fzu44Wp.exe4⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1244
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C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\hFh67Hj.exeC:\Users\Admin\AppData\Local\Temp\IXP002.TMP\hFh67Hj.exe4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2440
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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
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Downloads
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Filesize
537KB
MD524cdcc486d555dd4119920d27420395c
SHA12420933325ae37d71496fc6fe943267513e8bcbd
SHA256ecff47ddf70bd73c1199ab7c9f08060e36e1fced6c1568457be287f2b471d0e5
SHA512cb1070581eaa8b84a98bd9db961f3d84feb3e45cc244955d6539768ae2220eb8452507cffed20920e8aaf193e81ec6284fa58357e77b37edcdb419c8df4b990d
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Filesize
202KB
MD55c17583ddedf2bfec0dc7cef0cbe902f
SHA1cd90eb409807e2e1030c1f0197c9b277f0a81852
SHA2560c9e7d8cb20d9f9565ad3905bcc1b4bcce90f3081a3276ce358b9d744784705a
SHA512c6d35effca254123589b9df3890aa86b31a84d9387a09c1787a67a87fd11978beda196d6cb48f62b4dc6be6f8d09253aeb151f89537709b8970797887eeb614f
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Filesize
11KB
MD57e93bacbbc33e6652e147e7fe07572a0
SHA1421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91
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Filesize
175KB
MD5a5f5c5d6291c7ae9e1d1b7ed1e551490
SHA13d06413341893b838549939e15f8f1eec423d71a
SHA2561a09ce1cb64219a5d88e57845dc9ba6631efa06fccc8867ccf94eb132947563e
SHA512d9b3ba67bdd615ee2ce91a29cd9cf6723464be27bf45186fd0e9559ff2b0e7c51b423cfc3e32b5e90955046fb75a34c4a8528df7294b6c831ca254a65d2b8ba2