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Analysis
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max time kernel
148s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20240214-en -
resource tags
arch:x64arch:x86image:win11-20240214-enlocale:en-usos:windows11-21h2-x64system -
submitted
27/03/2024, 17:30
Static task
static1
Behavioral task
behavioral1
Sample
a95b60573d18671bea63aafbb3f8dad7b94e3a30f51d9dbfaefdb8c96eccb956.exe
Resource
win10v2004-20240226-en
General
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Target
a95b60573d18671bea63aafbb3f8dad7b94e3a30f51d9dbfaefdb8c96eccb956.exe
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Size
397KB
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MD5
36c49ce4084f9ed89e8897d38fac5086
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SHA1
1b2ae8d85f8fd6666e8e5d9597f4810f07c809c8
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SHA256
a95b60573d18671bea63aafbb3f8dad7b94e3a30f51d9dbfaefdb8c96eccb956
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SHA512
60f9e9145556f73af8c9a19841c53441612287cf37d7bd46b7177e432e91974b2c96b9471c65bad4c7bb21ec9c0bb659c120777b1291a2b5783a6bceea54533c
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SSDEEP
6144:Kici2Jk2Qs+04iUiCLsMcOTjqXVbeH0g3/ODSLwmpeEI7UJYOd1swUa3R6l:gi2JJv+KUiZMcoSeT3gm9zJYOMwRol
Malware Config
Extracted
stealc
http://185.172.128.209
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url_path
/3cd2b41cbde8fc9c.php
Signatures
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Downloads MZ/PE file
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Executes dropped EXE 4 IoCs
pid Process 4528 u1q0.0.exe 332 u1q0.0.exe 3664 u1q0.1.exe 4980 JJKEBGHJKF.exe -
Loads dropped DLL 2 IoCs
pid Process 332 u1q0.0.exe 332 u1q0.0.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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resource yara_rule behavioral2/files/0x0003000000025c2c-25.dat upx behavioral2/memory/3664-31-0x0000000000400000-0x0000000000930000-memory.dmp upx behavioral2/memory/3664-92-0x0000000000400000-0x0000000000930000-memory.dmp upx -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4528 set thread context of 332 4528 u1q0.0.exe 81 -
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 4216 2232 WerFault.exe 77 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 u1q0.0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString u1q0.0.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2536 schtasks.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 3944 PING.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 332 u1q0.0.exe 332 u1q0.0.exe 332 u1q0.0.exe 332 u1q0.0.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3664 u1q0.1.exe -
Suspicious use of WriteProcessMemory 36 IoCs
description pid Process procid_target PID 2232 wrote to memory of 4528 2232 a95b60573d18671bea63aafbb3f8dad7b94e3a30f51d9dbfaefdb8c96eccb956.exe 78 PID 2232 wrote to memory of 4528 2232 a95b60573d18671bea63aafbb3f8dad7b94e3a30f51d9dbfaefdb8c96eccb956.exe 78 PID 2232 wrote to memory of 4528 2232 a95b60573d18671bea63aafbb3f8dad7b94e3a30f51d9dbfaefdb8c96eccb956.exe 78 PID 4528 wrote to memory of 332 4528 u1q0.0.exe 81 PID 4528 wrote to memory of 332 4528 u1q0.0.exe 81 PID 4528 wrote to memory of 332 4528 u1q0.0.exe 81 PID 4528 wrote to memory of 332 4528 u1q0.0.exe 81 PID 4528 wrote to memory of 332 4528 u1q0.0.exe 81 PID 4528 wrote to memory of 332 4528 u1q0.0.exe 81 PID 4528 wrote to memory of 332 4528 u1q0.0.exe 81 PID 4528 wrote to memory of 332 4528 u1q0.0.exe 81 PID 4528 wrote to memory of 332 4528 u1q0.0.exe 81 PID 2232 wrote to memory of 3664 2232 a95b60573d18671bea63aafbb3f8dad7b94e3a30f51d9dbfaefdb8c96eccb956.exe 82 PID 2232 wrote to memory of 3664 2232 a95b60573d18671bea63aafbb3f8dad7b94e3a30f51d9dbfaefdb8c96eccb956.exe 82 PID 2232 wrote to memory of 3664 2232 a95b60573d18671bea63aafbb3f8dad7b94e3a30f51d9dbfaefdb8c96eccb956.exe 82 PID 3664 wrote to memory of 2980 3664 u1q0.1.exe 86 PID 3664 wrote to memory of 2980 3664 u1q0.1.exe 86 PID 3664 wrote to memory of 2980 3664 u1q0.1.exe 86 PID 2980 wrote to memory of 1712 2980 cmd.exe 88 PID 2980 wrote to memory of 1712 2980 cmd.exe 88 PID 2980 wrote to memory of 1712 2980 cmd.exe 88 PID 2980 wrote to memory of 2536 2980 cmd.exe 89 PID 2980 wrote to memory of 2536 2980 cmd.exe 89 PID 2980 wrote to memory of 2536 2980 cmd.exe 89 PID 332 wrote to memory of 4684 332 u1q0.0.exe 90 PID 332 wrote to memory of 4684 332 u1q0.0.exe 90 PID 332 wrote to memory of 4684 332 u1q0.0.exe 90 PID 4684 wrote to memory of 4980 4684 cmd.exe 92 PID 4684 wrote to memory of 4980 4684 cmd.exe 92 PID 4684 wrote to memory of 4980 4684 cmd.exe 92 PID 4980 wrote to memory of 2000 4980 JJKEBGHJKF.exe 93 PID 4980 wrote to memory of 2000 4980 JJKEBGHJKF.exe 93 PID 4980 wrote to memory of 2000 4980 JJKEBGHJKF.exe 93 PID 2000 wrote to memory of 3944 2000 cmd.exe 95 PID 2000 wrote to memory of 3944 2000 cmd.exe 95 PID 2000 wrote to memory of 3944 2000 cmd.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\a95b60573d18671bea63aafbb3f8dad7b94e3a30f51d9dbfaefdb8c96eccb956.exe"C:\Users\Admin\AppData\Local\Temp\a95b60573d18671bea63aafbb3f8dad7b94e3a30f51d9dbfaefdb8c96eccb956.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2232 -
C:\Users\Admin\AppData\Local\Temp\u1q0.0.exe"C:\Users\Admin\AppData\Local\Temp\u1q0.0.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4528 -
C:\Users\Admin\AppData\Local\Temp\u1q0.0.exe"C:\Users\Admin\AppData\Local\Temp\u1q0.0.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:332 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\JJKEBGHJKF.exe"4⤵
- Suspicious use of WriteProcessMemory
PID:4684 -
C:\Users\Admin\AppData\Local\Temp\JJKEBGHJKF.exe"C:\Users\Admin\AppData\Local\Temp\JJKEBGHJKF.exe"5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4980 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\JJKEBGHJKF.exe6⤵
- Suspicious use of WriteProcessMemory
PID:2000 -
C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30007⤵
- Runs ping.exe
PID:3944
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C:\Users\Admin\AppData\Local\Temp\u1q0.1.exe"C:\Users\Admin\AppData\Local\Temp\u1q0.1.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3664 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Temp\Task.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:2980 -
C:\Windows\SysWOW64\chcp.comchcp 12514⤵PID:1712
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn "MalayamaraUpdate" /tr "'C:\Users\Admin\AppData\Local\Temp\Updater.exe'" /sc minute /mo 30 /F4⤵
- Creates scheduled task(s)
PID:2536
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 11682⤵
- Program crash
PID:4216
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2232 -ip 22321⤵PID:2736
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
11KB
MD5a33e5b189842c5867f46566bdbf7a095
SHA1e1c06359f6a76da90d19e8fd95e79c832edb3196
SHA2565abf8e3d1f78de7b09d7f6fb87f9e80e60caacf13ef3c1289665653dacd7c454
SHA512f2ad3812ec9b915e9618539b0f103f2e9acaad25fbbacd84941c954ce070af231324e83a4621e951c1dbae8d40d50410954e40dd52bbd46e34c54b0d1957407b
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571
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Filesize
106KB
MD5fe380780b5c35bd6d54541791151c2be
SHA17fe3a583cf91474c733f85cebf3c857682e269e1
SHA256b64a84d1f88e4e78464a1901c1cb5bbd5f00bb73203d719e64e072157a087b53
SHA512ba05ba8aa13c4bc1cf98fbf6c08b021e8b19354098e0397fc8e1e5d3dcce367c1063203f24e50d0973193f6535681d0a43486e5dade5d112853b7a2fe8739b6c
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Filesize
128KB
MD5cbde922a54807227ceef482690a297c1
SHA14c8f0930fdeb8f80c1f18ba3c56002ee9345392f
SHA25688dbe3590bca82272a797659a8fa3c5df2254d5f1c49991c8dc3dd538c99e01d
SHA51210a81dc6de91b09860576ca3221c8ea2184c6946bf4199d4ee5d0b412cf8c15afbe514d6e800beeb7bd57fb41080016a6152557f188423909b8d1e3a1d29a469
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Filesize
252KB
MD5acd6011cb4295e007f9a48622c84c041
SHA1f3ef79d906d8dd1334c595d592378c6b71ec31b0
SHA256169e50e0e5bb1323a52dcc3ac8224cb2839b3bd7a68c58101762d1ba92c4d3e5
SHA512d8d2a41eb1edcde700356c0941e7cc8ccd06dcf41959d6cf72c0c5461ef540bfe5a7dfa7873bf90a532312d5c74ee0edb58c748ec0b232e5195ea182cabab3b0
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Filesize
1.7MB
MD5eee5ddcffbed16222cac0a1b4e2e466e
SHA128b40c88b8ea50b0782e2bcbb4cc0f411035f3d5
SHA2562a40e5dccc7526c4982334941c90f95374460e2a816e84e724e98c4d52ae8c54
SHA5128f88901f3ebd425818db09f268df19ccf8a755603f04e9481bcf02b112a84393f8a900ead77f8f971bfa33fd9fa5636b7494aaee864a0fb04e3273911a4216dc
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Filesize
128B
MD511bb3db51f701d4e42d3287f71a6a43e
SHA163a4ee82223be6a62d04bdfe40ef8ba91ae49a86
SHA2566be22058abfb22b40a42fb003f86b89e204a83024c03eb82cd53e2a0a047c331
SHA512907ad2c070cc1db89f43459a94d7f48985d939d749c9648b78572a266f0d3fde47813a129e9151dbf4a7d96d36f588172f57c88b8b947b56ed818d7d068abab2