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
09/11/2024, 05:06
Static task
static1
Behavioral task
behavioral1
Sample
6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe
Resource
win10v2004-20241007-en
General
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Target
6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe
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Size
764KB
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MD5
1152a8c0c424e3dec6af59369d9ea2fd
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SHA1
aab0bcae1bcdf43c886692eb6dcd85ca5f98f189
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SHA256
6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7
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SHA512
ea074eeca8fce56c427e78fdefea6a2342409cd491262c00ab9aef325de5b1c9d8b34c0fe98b190d6830ba53f88dc306a121ae0b580b49df5e8a05f01ed46221
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SSDEEP
12288:pMrOy901Mz8TWO2mof6gig+h4Ti0JAXGaKWMWPHddbYWxLOrepY3JgZ0jLJ:Dy1z8TB2Pv+hqi0u2bTWPHdSWxqrjJFV
Malware Config
Extracted
redline
dubna
193.233.20.11:4131
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auth_value
f324b1269094b7462e56bab025f032f4
Signatures
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Detects Healer an antivirus disabler dropper 2 IoCs
resource yara_rule behavioral1/files/0x0008000000023caf-19.dat healer behavioral1/memory/4972-21-0x0000000000030000-0x000000000003A000-memory.dmp healer -
Healer family
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" aAvAv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" aAvAv.exe Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection aAvAv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" aAvAv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" aAvAv.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" aAvAv.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/0x0007000000023cb0-25.dat family_redline behavioral1/memory/3608-27-0x00000000008D0000-0x0000000000902000-memory.dmp family_redline -
Redline family
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Executes dropped EXE 4 IoCs
pid Process 2136 dFHn.exe 4664 doVn.exe 4972 aAvAv.exe 3608 bAvAv.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" aAvAv.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_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" 6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.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\\\"" dFHn.exe 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\\\"" doVn.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 6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dFHn.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language doVn.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bAvAv.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4972 aAvAv.exe 4972 aAvAv.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4972 aAvAv.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3956 wrote to memory of 2136 3956 6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe 84 PID 3956 wrote to memory of 2136 3956 6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe 84 PID 3956 wrote to memory of 2136 3956 6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe 84 PID 2136 wrote to memory of 4664 2136 dFHn.exe 86 PID 2136 wrote to memory of 4664 2136 dFHn.exe 86 PID 2136 wrote to memory of 4664 2136 dFHn.exe 86 PID 4664 wrote to memory of 4972 4664 doVn.exe 87 PID 4664 wrote to memory of 4972 4664 doVn.exe 87 PID 4664 wrote to memory of 3608 4664 doVn.exe 93 PID 4664 wrote to memory of 3608 4664 doVn.exe 93 PID 4664 wrote to memory of 3608 4664 doVn.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe"C:\Users\Admin\AppData\Local\Temp\6d91ba5a63be719bd0eabf37076a443173bf171084d4bde0881ec94be5e7cae7.exe"1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3956 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dFHn.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dFHn.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2136 -
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\doVn.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\doVn.exe3⤵
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4664 -
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aAvAv.exeC:\Users\Admin\AppData\Local\Temp\IXP002.TMP\aAvAv.exe4⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4972
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C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bAvAv.exeC:\Users\Admin\AppData\Local\Temp\IXP002.TMP\bAvAv.exe4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3608
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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
533KB
MD5a1314ae867a0aad70f0212a3b4af7884
SHA184170215e64e2b2959779392449baa5206ed3b8a
SHA256ddb48ec62b91d24db6ef43762f466b87d244a2b7342b885cae402d252bda0cce
SHA512e6e67a705a6e14e5dc474e170fec7e0693f828339764d410fdd968df85357b187e7c783426f0c4978840de96ac4bb00360235841b868f99c530c9a51cc951e84
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Filesize
202KB
MD5e2ad1da05395d032018e9489ba36db5f
SHA1a039780b8153b304a4ddf108a492d1de0d1ff04d
SHA256d77e38ad1a9c99a93328d087e54548842d500c602337864dcc2fef0cb660f85b
SHA51263210564358529ddc9bce2627c73403cccefaa3d49e2d7a6c4dff940a61623713d36f0f72ad6e4ec37cc1b5af681ccb2fab1efba256ccab87f00acf68af779f5
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Filesize
11KB
MD57e93bacbbc33e6652e147e7fe07572a0
SHA1421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91
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Filesize
175KB
MD5ef8079cf160510d0da7162bc08f753d8
SHA1e786cc8bee83e4a37433ddccf9d3540e1f6533fe
SHA256a6416ca607f03e7d02dd9c8b546113c71f421c0ba8438dafb941d25f8cf2c9e6
SHA512959b08126358527b794a276f6e9f818250f888d9f108b46766f6c2e50186acc8f406acbeb94ca97b5f0e329b27f3851003446715d5d040b5c0fef4010011a2c3