Analysis
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max time kernel
151s -
max time network
173s -
platform
windows10-2004_x64 -
resource
win10v2004-20231020-en -
resource tags
arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system -
submitted
11-11-2023 02:22
Static task
static1
Behavioral task
behavioral1
Sample
b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe
Resource
win10v2004-20231020-en
General
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Target
b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe
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Size
511KB
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MD5
cfb62df3f786093ef1342d46efac7003
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SHA1
681ef79a16112a8fd696eb11530d00993b130d0b
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SHA256
b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee
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SHA512
9899d440584cd8134e63402b0aafc976d0c54c4ab420b60751f9121e2b054b5733c4cf552e2c878fb5005279270e9859b8cae0512f1c6995ace9fa30b68ad94a
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SSDEEP
12288:YMrby90IJIEcPiSDkyJlOwcWMiUUY8TUs2euF+4+wSRWFAjor9h3xO:zycPVAnWxPYSz2eu4USMh3xO
Malware Config
Extracted
redline
taiga
5.42.92.51:19057
Signatures
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Detect Mystic stealer payload 4 IoCs
resource yara_rule behavioral1/memory/4668-14-0x0000000000400000-0x0000000000433000-memory.dmp mystic_family behavioral1/memory/4668-15-0x0000000000400000-0x0000000000433000-memory.dmp mystic_family behavioral1/memory/4668-16-0x0000000000400000-0x0000000000433000-memory.dmp mystic_family behavioral1/memory/4668-18-0x0000000000400000-0x0000000000433000-memory.dmp mystic_family -
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload 1 IoCs
resource yara_rule behavioral1/memory/3040-22-0x0000000000400000-0x000000000043C000-memory.dmp family_redline -
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-1-5-21-3350690463-3549324357-1323838019-1000\Control Panel\International\Geo\Nation 7rL1VM93.exe -
Executes dropped EXE 4 IoCs
pid Process 4748 dL3Iy09.exe 1284 1Hw74ST0.exe 2696 2Cz3229.exe 4640 7rL1VM93.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\\\"" b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.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\\\"" dL3Iy09.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1284 set thread context of 4668 1284 1Hw74ST0.exe 92 PID 2696 set thread context of 3040 2696 2Cz3229.exe 99 -
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 3856 4668 WerFault.exe 92 -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 5000 wrote to memory of 4748 5000 b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe 88 PID 5000 wrote to memory of 4748 5000 b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe 88 PID 5000 wrote to memory of 4748 5000 b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe 88 PID 4748 wrote to memory of 1284 4748 dL3Iy09.exe 89 PID 4748 wrote to memory of 1284 4748 dL3Iy09.exe 89 PID 4748 wrote to memory of 1284 4748 dL3Iy09.exe 89 PID 1284 wrote to memory of 4668 1284 1Hw74ST0.exe 92 PID 1284 wrote to memory of 4668 1284 1Hw74ST0.exe 92 PID 1284 wrote to memory of 4668 1284 1Hw74ST0.exe 92 PID 1284 wrote to memory of 4668 1284 1Hw74ST0.exe 92 PID 1284 wrote to memory of 4668 1284 1Hw74ST0.exe 92 PID 1284 wrote to memory of 4668 1284 1Hw74ST0.exe 92 PID 1284 wrote to memory of 4668 1284 1Hw74ST0.exe 92 PID 1284 wrote to memory of 4668 1284 1Hw74ST0.exe 92 PID 1284 wrote to memory of 4668 1284 1Hw74ST0.exe 92 PID 1284 wrote to memory of 4668 1284 1Hw74ST0.exe 92 PID 4748 wrote to memory of 2696 4748 dL3Iy09.exe 94 PID 4748 wrote to memory of 2696 4748 dL3Iy09.exe 94 PID 4748 wrote to memory of 2696 4748 dL3Iy09.exe 94 PID 2696 wrote to memory of 3492 2696 2Cz3229.exe 98 PID 2696 wrote to memory of 3492 2696 2Cz3229.exe 98 PID 2696 wrote to memory of 3492 2696 2Cz3229.exe 98 PID 2696 wrote to memory of 3040 2696 2Cz3229.exe 99 PID 2696 wrote to memory of 3040 2696 2Cz3229.exe 99 PID 2696 wrote to memory of 3040 2696 2Cz3229.exe 99 PID 2696 wrote to memory of 3040 2696 2Cz3229.exe 99 PID 2696 wrote to memory of 3040 2696 2Cz3229.exe 99 PID 2696 wrote to memory of 3040 2696 2Cz3229.exe 99 PID 2696 wrote to memory of 3040 2696 2Cz3229.exe 99 PID 2696 wrote to memory of 3040 2696 2Cz3229.exe 99 PID 5000 wrote to memory of 4640 5000 b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe 100 PID 5000 wrote to memory of 4640 5000 b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe 100 PID 5000 wrote to memory of 4640 5000 b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe 100 PID 4640 wrote to memory of 2328 4640 7rL1VM93.exe 103 PID 4640 wrote to memory of 2328 4640 7rL1VM93.exe 103 PID 4640 wrote to memory of 2328 4640 7rL1VM93.exe 103
Processes
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C:\Users\Admin\AppData\Local\Temp\b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe"C:\Users\Admin\AppData\Local\Temp\b3303b37e83fd0e8dd858de00d4940b9a599c207ddc9ed92eb6bb93b5c1ea0ee.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dL3Iy09.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\dL3Iy09.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4748 -
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Hw74ST0.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\1Hw74ST0.exe3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1284 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"4⤵PID:4668
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4668 -s 5485⤵
- Program crash
PID:3856
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C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Cz3229.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\2Cz3229.exe3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2696 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"4⤵PID:3492
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"4⤵PID:3040
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7rL1VM93.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\7rL1VM93.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4640 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "3⤵PID:2328
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4668 -ip 46681⤵PID:4692
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
73KB
MD53c0a0848be7eb6d3d733ab5db1571b89
SHA1bcd5c7fe5e8f1358fa20cb21ca95772349e1590b
SHA256a4b763b5a3deb4aa27219c7ffcb153a75d27f091198c30f2c9c3761e840a1544
SHA5124e475a35586f1bceaeccd9b4e8d08c90f2c22dd8f7852485c9782f01dd2f194e0f0a0bb8bf89cc63b730d658cab20b20d65d5ede319189d55024d30b5f287ddb
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Filesize
73KB
MD53c0a0848be7eb6d3d733ab5db1571b89
SHA1bcd5c7fe5e8f1358fa20cb21ca95772349e1590b
SHA256a4b763b5a3deb4aa27219c7ffcb153a75d27f091198c30f2c9c3761e840a1544
SHA5124e475a35586f1bceaeccd9b4e8d08c90f2c22dd8f7852485c9782f01dd2f194e0f0a0bb8bf89cc63b730d658cab20b20d65d5ede319189d55024d30b5f287ddb
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Filesize
389KB
MD5077958a8897d5cc23614e7c89568e33f
SHA1439aad4fc88662e8c3af218fec5c72b092edb2db
SHA256b135c8e46945d428ebecde8e35494b93bbda5ffd08bff30023dd8401ed7e4f7c
SHA512f4686b3d7ea58aa3b3e1b4ae126040e3d5b081aeac390a9258cf3b53642e42c3405c05586c4c2cadb03af09c19a830ec02a7cb30f20f66a85a4ba8a710bc5bf6
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Filesize
389KB
MD5077958a8897d5cc23614e7c89568e33f
SHA1439aad4fc88662e8c3af218fec5c72b092edb2db
SHA256b135c8e46945d428ebecde8e35494b93bbda5ffd08bff30023dd8401ed7e4f7c
SHA512f4686b3d7ea58aa3b3e1b4ae126040e3d5b081aeac390a9258cf3b53642e42c3405c05586c4c2cadb03af09c19a830ec02a7cb30f20f66a85a4ba8a710bc5bf6
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Filesize
300KB
MD5784667bb96ccb30c4cf44f2c5f493769
SHA128185165ab4dbbb4a139ae1af0bb6934ebe05c04
SHA2561025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9
SHA51262c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20
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Filesize
300KB
MD5784667bb96ccb30c4cf44f2c5f493769
SHA128185165ab4dbbb4a139ae1af0bb6934ebe05c04
SHA2561025fb084bca865df30e69eea7a9a4a3c852626e148b340de661e6f5b63bc1c9
SHA51262c9def097f132cdb26b11e586f3e15407b9eb9e9e32f79460a3be1bd4c8e046db8488f754cd1c1cc4fe4025a3f9bc9484e94eae0c7d273050f8e6548d12bc20
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Filesize
339KB
MD514d9834611ad581afcfea061652ff6cb
SHA1802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5
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Filesize
339KB
MD514d9834611ad581afcfea061652ff6cb
SHA1802f964d0be7858eb2f1e7c6fcda03501fd1b71c
SHA256e6e9b3d830f2d7860a09d596576e8ab0131c527b47dda73fe727b71b44c8cf60
SHA512cbef1f44eb76d719c60d857a567a3fc700d62751111337cd4f8d30deae6901dc361320f28dac5ec5468420419eed66cada20f4c90fe07db6a3f8cf959eba31b5
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Filesize
181B
MD5225edee1d46e0a80610db26b275d72fb
SHA1ce206abf11aaf19278b72f5021cc64b1b427b7e8
SHA256e1befb57d724c9dc760cf42d7e0609212b22faeb2dc0c3ffe2fbd7134ff69559
SHA5124f01a2a248a1322cb690b7395b818d2780e46f4884e59f1ab96125d642b6358eea97c7fad6023ef17209b218daa9c88d15ea2b92f124ecb8434c0c7b4a710504
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Filesize
3B
MD5a5ea0ad9260b1550a14cc58d2c39b03d
SHA1f0aedf295071ed34ab8c6a7692223d22b6a19841
SHA256f1b2f662800122bed0ff255693df89c4487fbdcf453d3524a42d4ec20c3d9c04
SHA5127c735c613ece191801114785c1ee26a0485cbf1e8ee2c3b85ba1ad290ef75eec9fede5e1a5dc26d504701f3542e6b6457818f4c1d62448d0db40d5f35c357d74