Analysis
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max time kernel
144s -
max time network
161s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
11-11-2023 10:17
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe
Resource
win10v2004-20231023-en
General
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Target
NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe
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Size
511KB
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MD5
961aac55809ef3ecc4d8ae74883e1040
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SHA1
cebbd76ed04fc3d73e2f32181f1eff9482edb65e
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SHA256
f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5
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SHA512
51536fa15facfe9ececb007245e6f5559a806538a8f9cddc1bc5e05754c5738d6cc9ef11d4726be5dd84d4f43fc865f564c0204cba793079a945d3f31fddd0f4
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SSDEEP
12288:RMrxy90yiuIHGoXY8TUs2buE+4+wSRKFHtr0WtNV/cmFO:QyrilmoXYSz2burUSgJt0439O
Malware Config
Extracted
redline
taiga
5.42.92.51:19057
Signatures
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Detect Mystic stealer payload 4 IoCs
Processes:
resource yara_rule behavioral1/memory/4496-14-0x0000000000400000-0x0000000000433000-memory.dmp mystic_family behavioral1/memory/4496-16-0x0000000000400000-0x0000000000433000-memory.dmp mystic_family behavioral1/memory/4496-15-0x0000000000400000-0x0000000000433000-memory.dmp mystic_family behavioral1/memory/4496-18-0x0000000000400000-0x0000000000433000-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
Processes:
resource yara_rule behavioral1/memory/1004-22-0x0000000000400000-0x000000000043C000-memory.dmp family_redline -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
5xu40ts.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation 5xu40ts.exe -
Executes dropped EXE 4 IoCs
Processes:
Cf6RW16.exe3Qp526sL.exe4Ie8nj9.exe5xu40ts.exepid Process 1440 Cf6RW16.exe 4524 3Qp526sL.exe 2388 4Ie8nj9.exe 3608 5xu40ts.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Cf6RW16.exeNEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exedescription ioc Process 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\\\"" Cf6RW16.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\\\"" NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
3Qp526sL.exe4Ie8nj9.exedescription pid Process procid_target PID 4524 set thread context of 4496 4524 3Qp526sL.exe 98 PID 2388 set thread context of 1004 2388 4Ie8nj9.exe 103 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target Process procid_target 2548 4496 WerFault.exe 98 3900 4496 WerFault.exe 98 -
Suspicious use of WriteProcessMemory 39 IoCs
Processes:
NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exeCf6RW16.exe3Qp526sL.exe4Ie8nj9.exeAppLaunch.exe5xu40ts.exedescription pid Process procid_target PID 4196 wrote to memory of 1440 4196 NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe 94 PID 4196 wrote to memory of 1440 4196 NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe 94 PID 4196 wrote to memory of 1440 4196 NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe 94 PID 1440 wrote to memory of 4524 1440 Cf6RW16.exe 96 PID 1440 wrote to memory of 4524 1440 Cf6RW16.exe 96 PID 1440 wrote to memory of 4524 1440 Cf6RW16.exe 96 PID 4524 wrote to memory of 4496 4524 3Qp526sL.exe 98 PID 4524 wrote to memory of 4496 4524 3Qp526sL.exe 98 PID 4524 wrote to memory of 4496 4524 3Qp526sL.exe 98 PID 4524 wrote to memory of 4496 4524 3Qp526sL.exe 98 PID 4524 wrote to memory of 4496 4524 3Qp526sL.exe 98 PID 4524 wrote to memory of 4496 4524 3Qp526sL.exe 98 PID 4524 wrote to memory of 4496 4524 3Qp526sL.exe 98 PID 4524 wrote to memory of 4496 4524 3Qp526sL.exe 98 PID 4524 wrote to memory of 4496 4524 3Qp526sL.exe 98 PID 4524 wrote to memory of 4496 4524 3Qp526sL.exe 98 PID 1440 wrote to memory of 2388 1440 Cf6RW16.exe 99 PID 1440 wrote to memory of 2388 1440 Cf6RW16.exe 99 PID 1440 wrote to memory of 2388 1440 Cf6RW16.exe 99 PID 2388 wrote to memory of 4488 2388 4Ie8nj9.exe 102 PID 2388 wrote to memory of 4488 2388 4Ie8nj9.exe 102 PID 2388 wrote to memory of 4488 2388 4Ie8nj9.exe 102 PID 2388 wrote to memory of 1004 2388 4Ie8nj9.exe 103 PID 2388 wrote to memory of 1004 2388 4Ie8nj9.exe 103 PID 2388 wrote to memory of 1004 2388 4Ie8nj9.exe 103 PID 2388 wrote to memory of 1004 2388 4Ie8nj9.exe 103 PID 2388 wrote to memory of 1004 2388 4Ie8nj9.exe 103 PID 2388 wrote to memory of 1004 2388 4Ie8nj9.exe 103 PID 2388 wrote to memory of 1004 2388 4Ie8nj9.exe 103 PID 2388 wrote to memory of 1004 2388 4Ie8nj9.exe 103 PID 4196 wrote to memory of 3608 4196 NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe 104 PID 4196 wrote to memory of 3608 4196 NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe 104 PID 4196 wrote to memory of 3608 4196 NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe 104 PID 4496 wrote to memory of 2548 4496 AppLaunch.exe 107 PID 4496 wrote to memory of 2548 4496 AppLaunch.exe 107 PID 4496 wrote to memory of 2548 4496 AppLaunch.exe 107 PID 3608 wrote to memory of 408 3608 5xu40ts.exe 109 PID 3608 wrote to memory of 408 3608 5xu40ts.exe 109 PID 3608 wrote to memory of 408 3608 5xu40ts.exe 109
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.f51fb02c3f6700e7ebfd52cfa9ef546230907387f4e3d80d33d6fd0d28b6ffe5.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4196 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Cf6RW16.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Cf6RW16.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1440 -
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Qp526sL.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\3Qp526sL.exe3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4524 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"4⤵
- Suspicious use of WriteProcessMemory
PID:4496 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 5405⤵
- Program crash
PID:2548
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4496 -s 5405⤵
- Program crash
PID:3900
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C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Ie8nj9.exeC:\Users\Admin\AppData\Local\Temp\IXP001.TMP\4Ie8nj9.exe3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2388 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"4⤵PID:4488
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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:1004
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5xu40ts.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\5xu40ts.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3608 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\is64.bat" "3⤵PID:408
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4496 -ip 44961⤵PID:3788
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
73KB
MD5cee786a25fd6f61ce321972831c42632
SHA16252d3daa95eac5ae87937d4fc1001ba9f1e56ac
SHA2565b4aad12b72037d3ff8aa7020ef8410823d75f0fe1ab6ac282cd7667cbbff6e3
SHA512970433ba0aabbc2a938556abfef375b9b18d71b8cf33e639d70a0c10060c06657fa148dbff8beb8eb0e05525617484b7194500f4f213a9c2eaf20256fd4b67af
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Filesize
73KB
MD5cee786a25fd6f61ce321972831c42632
SHA16252d3daa95eac5ae87937d4fc1001ba9f1e56ac
SHA2565b4aad12b72037d3ff8aa7020ef8410823d75f0fe1ab6ac282cd7667cbbff6e3
SHA512970433ba0aabbc2a938556abfef375b9b18d71b8cf33e639d70a0c10060c06657fa148dbff8beb8eb0e05525617484b7194500f4f213a9c2eaf20256fd4b67af
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Filesize
389KB
MD50e5b290557b9cd41652e551aedeaac2b
SHA11279fc4d53a71abf57cfcf27750df6f2b94c7630
SHA2569fef4d1eb390aab46b08f3670318f1af87e58bf943219963b10130be5096a891
SHA512686cbb9261cfdf0a2d55e4b8593c02ea7dd0adc9d4257203dd4ef62ef931c647df6ebd60c07163dbaccd0645ae1b99e00be408a476bcb41a8dc31a6671e10bdb
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Filesize
389KB
MD50e5b290557b9cd41652e551aedeaac2b
SHA11279fc4d53a71abf57cfcf27750df6f2b94c7630
SHA2569fef4d1eb390aab46b08f3670318f1af87e58bf943219963b10130be5096a891
SHA512686cbb9261cfdf0a2d55e4b8593c02ea7dd0adc9d4257203dd4ef62ef931c647df6ebd60c07163dbaccd0645ae1b99e00be408a476bcb41a8dc31a6671e10bdb
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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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MD5
d41d8cd98f00b204e9800998ecf8427e
SHA1da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e