Analysis
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max time kernel
138s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
01-05-2024 22:06
Static task
static1
Behavioral task
behavioral1
Sample
5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff.exe
Resource
win10v2004-20240426-en
General
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Target
5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff.exe
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Size
914KB
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MD5
754fa9b827fd368e9233e965d78d5e4e
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SHA1
7162680e492388b80bad951345edaa4df1e60088
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SHA256
5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff
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SHA512
c9041c59fc22559aa88afd9d21bade9b8b3bc4e53a259efb425ec3413d6b6f39c56424ec09dbeb56cc939db4a1907e0db845e41fe1aabcb7922424f89571e1c7
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SSDEEP
24576:Vy1colZezgTUGtApNaHQyVGRINZu1QS5j:w/WzMrteNqVQIN41x5
Malware Config
Extracted
redline
dark
185.161.248.73:4164
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auth_value
ae85b01f66afe8770afeed560513fc2d
Signatures
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Detects Healer an antivirus disabler dropper 3 IoCs
resource yara_rule behavioral1/memory/5260-2163-0x0000000000C60000-0x0000000000C6A000-memory.dmp healer behavioral1/files/0x000800000002345d-2162.dat healer behavioral1/memory/2648-2149-0x0000000004AC0000-0x0000000004ACA000-memory.dmp healer -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" 1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" 1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" 1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection 1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" 1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" 1.exe -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 3 IoCs
resource yara_rule behavioral1/memory/5072-4317-0x0000000005760000-0x0000000005792000-memory.dmp family_redline behavioral1/files/0x0007000000023460-4322.dat family_redline behavioral1/memory/2468-4324-0x0000000000340000-0x0000000000370000-memory.dmp family_redline -
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 3 IoCs
resource yara_rule behavioral1/memory/5260-2163-0x0000000000C60000-0x0000000000C6A000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/files/0x000800000002345d-2162.dat INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2648-2149-0x0000000004AC0000-0x0000000004ACA000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender -
Detects executables packed with ConfuserEx Mod 3 IoCs
resource yara_rule behavioral1/memory/5072-4317-0x0000000005760000-0x0000000005792000-memory.dmp INDICATOR_EXE_Packed_ConfuserEx behavioral1/files/0x0007000000023460-4322.dat INDICATOR_EXE_Packed_ConfuserEx behavioral1/memory/2468-4324-0x0000000000340000-0x0000000000370000-memory.dmp INDICATOR_EXE_Packed_ConfuserEx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation 94600487.exe -
Executes dropped EXE 5 IoCs
pid Process 2956 st399543.exe 2648 94600487.exe 5260 1.exe 5072 kp746910.exe 2468 lr652360.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0" 1.exe -
Adds Run key to start application 2 TTPs 2 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\\\"" 5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff.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\\\"" st399543.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2888 5072 WerFault.exe 88 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 5260 1.exe 5260 1.exe 5260 1.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2648 94600487.exe Token: SeDebugPrivilege 5072 kp746910.exe Token: SeDebugPrivilege 5260 1.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 4848 wrote to memory of 2956 4848 5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff.exe 83 PID 4848 wrote to memory of 2956 4848 5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff.exe 83 PID 4848 wrote to memory of 2956 4848 5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff.exe 83 PID 2956 wrote to memory of 2648 2956 st399543.exe 85 PID 2956 wrote to memory of 2648 2956 st399543.exe 85 PID 2956 wrote to memory of 2648 2956 st399543.exe 85 PID 2648 wrote to memory of 5260 2648 94600487.exe 87 PID 2648 wrote to memory of 5260 2648 94600487.exe 87 PID 2956 wrote to memory of 5072 2956 st399543.exe 88 PID 2956 wrote to memory of 5072 2956 st399543.exe 88 PID 2956 wrote to memory of 5072 2956 st399543.exe 88 PID 4848 wrote to memory of 2468 4848 5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff.exe 92 PID 4848 wrote to memory of 2468 4848 5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff.exe 92 PID 4848 wrote to memory of 2468 4848 5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff.exe"C:\Users\Admin\AppData\Local\Temp\5b184b535b6cb3f4996dfd2752b6dc2b5ae1adc30eee035e72b6a960323ff1ff.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4848 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\st399543.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\st399543.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2956 -
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\94600487.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\94600487.exe3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2648 -
C:\Windows\Temp\1.exe"C:\Windows\Temp\1.exe"4⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5260
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C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\kp746910.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\kp746910.exe3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5072 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5072 -s 12604⤵
- Program crash
PID:2888
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lr652360.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\lr652360.exe2⤵
- Executes dropped EXE
PID:2468
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5072 -ip 50721⤵PID:1604
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
168KB
MD516cf18c8ef1d4be89b36e27c8fb88e9d
SHA17811ba84f75a1adc6d995c2c1121ec996d1cc003
SHA256116156cc3af0bf4d81d9b2fba83c569cf9f4c9055b9c9cd5731538de036417e8
SHA5124cb9e29db63d28c802c7c1799fd53e00b5facdc0b63d08b76d619c7a9be6cc06f11c0d435ad035bf3f9c3c96687e03e5157ae2ce7494a621c0762bc8083d9fbd
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Filesize
760KB
MD5b4739ea60f15eb6ba8fbdc5eac898bcb
SHA1fdb92d0e62090b4905aceaee3d0223381d16bf82
SHA2561e76796e3f059435c6cc911c09ff4b9d344408967840a3f09e5f902feb660fa5
SHA51276bde1021618cb750d07383bfe4c36eaeb7915d55bd6a99a5527d2d185d276b2f51613f0cd0211f879e3c915b20fdead0a933a004becb25d018c3e9f58ccdc40
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Filesize
300KB
MD5a6e57af537e534299bc6a62830929d27
SHA1dba2d850a6ac1dfbfd65c270342482bd47d5697d
SHA2567f1beab773fb86c553330b4b9ddefc47d946d1c18ffde4318ea8ceeeeeaee9a2
SHA512dbd565c08178aae2da49abcc5e2388ef06be7d8f445ab9ce4659f58e666ee10cc80b386a1d67381b2db13ec0bbc97a86db780f0ac9e54bca27881885c5bb553c
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Filesize
539KB
MD56a3d723b02bf5ff554f5bb99bdc9bfcb
SHA147ae2a203e2e41e17d078fe0d766570c1e30e65b
SHA256ace2eb0e8f4dc0cef1f2307217222cd2db5acd060d565dc773e0b61a89b72c79
SHA5125cb7419958b61168a7a4f3e8763a35af040b756aee8b4f9ec783ec24152bd35120cbec5d950342d5bce1d147343cef4a23cff635877514fc7c54039b7fdfef92
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Filesize
11KB
MD57e93bacbbc33e6652e147e7fe07572a0
SHA1421a7167da01c8da4dc4d5234ca3dd84e319e762
SHA256850cd190aaeebcf1505674d97f51756f325e650320eaf76785d954223a9bee38
SHA512250169d7b6fcebff400be89edae8340f14130ced70c340ba9da9f225f62b52b35f6645bfb510962efb866f988688cb42392561d3e6b72194bc89d310ea43aa91