Analysis
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max time kernel
151s -
max time network
167s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
16/03/2024, 01:13
Static task
static1
Behavioral task
behavioral1
Sample
ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe
Resource
win10v2004-20240226-en
General
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Target
ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe
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Size
448KB
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MD5
23a6a4f6dfc1afad891316e24a4894a1
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SHA1
65f67162cb17103ab48844e8e4c59ae9c1c40466
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SHA256
ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3
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SHA512
00f7d255119d74728b7d0286fe6eca2ebcbf1a77c33f566c1f85f99e90203469656769a5c937ba6515f3571f493762bd883614fa8153ec1b4d31b8bd48228e85
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SSDEEP
12288:Vm0NyXgC8FoCNXSNpCyfi0npM4dl0v5JdmA:VPNywC8CCUNpCyfiEM4dmv5r
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 4312 ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe -
Executes dropped EXE 1 IoCs
pid Process 4312 ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe -
Program crash 5 IoCs
pid pid_target Process procid_target 4844 348 WerFault.exe 86 2780 4312 WerFault.exe 92 872 4312 WerFault.exe 92 3016 4312 WerFault.exe 92 4660 4312 WerFault.exe 92 -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 348 ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 4312 ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 348 wrote to memory of 4312 348 ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe 92 PID 348 wrote to memory of 4312 348 ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe 92 PID 348 wrote to memory of 4312 348 ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe"C:\Users\Admin\AppData\Local\Temp\ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe"1⤵
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:348 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 348 -s 3882⤵
- Program crash
PID:4844
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C:\Users\Admin\AppData\Local\Temp\ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exeC:\Users\Admin\AppData\Local\Temp\ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:4312 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 3523⤵
- Program crash
PID:2780
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 7683⤵
- Program crash
PID:872
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 7723⤵
- Program crash
PID:3016
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4312 -s 7683⤵
- Program crash
PID:4660
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 348 -ip 3481⤵PID:5056
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4312 -ip 43121⤵PID:3152
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4312 -ip 43121⤵PID:496
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4312 -ip 43121⤵PID:3144
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4312 -ip 43121⤵PID:4280
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\ef79545ac0f3eb5a4e7aab6df8f7789f94f60522a5a7169293fb577883e1a9d3.exe
Filesize448KB
MD543d3aa9fa6ac6d4511e9aec618e42a8d
SHA1f1ee64875c19eae77fee59a47385aa0bfc787e31
SHA256fb3cfc18431012f593e94c7a92772612c94e7d00a4aad089cba82f0663360526
SHA51250b76e4714e8e836cc97e90cb045c777c3fd9e8486571c6e4c4debdd86a7960e1dfa443692fcaddd90c4ced8833ff7e7f29172cad95a94957fad3122811148b9