Analysis
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max time kernel
143s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
07-10-2023 12:32
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe
Resource
win7-20230831-en
windows7-x64
5 signatures
150 seconds
General
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Target
NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe
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Size
378KB
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MD5
0442b7a9e592b1ed245f00b49c5d00e8
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SHA1
5173c21fa23ba972e78802958260fca79bd52380
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SHA256
761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47
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SHA512
aa5185b7f1bb8c381e5ed4b00456cbb2270e812e9aed83772f4e05a27b823c8bb177dd34b6d42fa2ca9d0f563d7150bfd792f7fdef0624431e03a674025fbaf3
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SSDEEP
6144:R4kS292pCryG4kfjSGwEi56AOFGg9bwglT3S5FFNDnUfl0D:R4k72wryNSygZwEW3nUf+D
Malware Config
Extracted
Family
mystic
C2
http://5.42.92.211/loghub/master
Signatures
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Detect Mystic stealer payload 5 IoCs
resource yara_rule behavioral2/memory/860-0-0x0000000000400000-0x0000000000428000-memory.dmp family_mystic behavioral2/memory/860-1-0x0000000000400000-0x0000000000428000-memory.dmp family_mystic behavioral2/memory/860-2-0x0000000000400000-0x0000000000428000-memory.dmp family_mystic behavioral2/memory/860-3-0x0000000000400000-0x0000000000428000-memory.dmp family_mystic behavioral2/memory/860-4-0x0000000000400000-0x0000000000428000-memory.dmp family_mystic -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3772 set thread context of 860 3772 NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe 87 -
Program crash 1 IoCs
pid pid_target Process procid_target 2508 3772 WerFault.exe 84 -
Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 3772 wrote to memory of 860 3772 NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe 87 PID 3772 wrote to memory of 860 3772 NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe 87 PID 3772 wrote to memory of 860 3772 NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe 87 PID 3772 wrote to memory of 860 3772 NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe 87 PID 3772 wrote to memory of 860 3772 NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe 87 PID 3772 wrote to memory of 860 3772 NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe 87 PID 3772 wrote to memory of 860 3772 NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe 87 PID 3772 wrote to memory of 860 3772 NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe 87 PID 3772 wrote to memory of 860 3772 NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe 87 PID 3772 wrote to memory of 860 3772 NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.761dfbeb1336a58ac2fca66ee5e28faf48817ecfe6fb3912159a950d30c24d47_JC.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3772 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"2⤵PID:860
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3772 -s 4362⤵
- Program crash
PID:2508
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3772 -ip 37721⤵PID:4036