Analysis
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max time kernel
162s -
max time network
136s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
11/10/2023, 22:23
Static task
static1
Behavioral task
behavioral1
Sample
04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Resource
win10v2004-20230915-en
General
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Target
04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
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Size
73KB
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MD5
1c3775989e03de799a62061ef7bb2321
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SHA1
fdf0a1fe8d0080d1722251758ee394ef4c4aa008
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SHA256
04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1
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SHA512
279f3c4de2ff6d7790b2b9a5d4eba0cc1f57e7db90eeb5d1ee0ecdb786faecddeb18aa777e80a7dd1bff41c64898112d92371348dcd7f91e09c051b1eff2df7b
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SSDEEP
768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO:RshfSWHHNvoLqNwDDGw02eQmh0HjWO
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2260 rundll32.exe -
Loads dropped DLL 2 IoCs
pid Process 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe -
Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe File created C:\Windows\SysWOW64\notepad¢¬.exe 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe File opened for modification C:\Windows\SysWOW64\¢«.exe 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe File created C:\Windows\SysWOW64\¢«.exe 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe File created C:\Windows\system\rundll32.exe 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe -
Modifies registry class 15 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\Classes\MSipv 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697137163" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697137163" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2260 rundll32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 2260 rundll32.exe 2260 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 2228 wrote to memory of 2260 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 27 PID 2228 wrote to memory of 2260 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 27 PID 2228 wrote to memory of 2260 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 27 PID 2228 wrote to memory of 2260 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 27 PID 2228 wrote to memory of 2260 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 27 PID 2228 wrote to memory of 2260 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 27 PID 2228 wrote to memory of 2260 2228 04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe"C:\Users\Admin\AppData\Local\Temp\04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe"1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2228 -
C:\Windows\system\rundll32.exeC:\Windows\system\rundll32.exe2⤵
- Executes dropped EXE
- Modifies system executable filetype association
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2260
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
86KB
MD5f153d6c330a3208bfe0ab586b402fcf8
SHA18b2ad0bd24bfac5bce174b3dd597557c30cf5b2b
SHA25651a8d1df396e6428d029a05c1f099d0b4b4166845e4269834441422913c9e5c7
SHA512cf4f298d63d8bc342ae24e5d1f87254b0d8075edda5d23ce616bc7b8b065d7511b997ac7cb29b0df39fa6d00c7c9028acd9e961b412f34d602a6374ca549c54d
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Filesize
80KB
MD5f14dde8b0f083bfcfa65979dcc7f751e
SHA1640499a912003b791cefea8742e0a115811cc012
SHA256924b5bd097650ee3f5c04f4469490a513314adddf77b77e39b78207c9629a6b9
SHA5127018f20063945383ef9c830b9d69decf25274b0a2546488c70d4e536c8d6e5165516fddc45429f1fc8a5de409d7bde222f83f61b568a9d7e35254b86366518e2
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Filesize
80KB
MD5f14dde8b0f083bfcfa65979dcc7f751e
SHA1640499a912003b791cefea8742e0a115811cc012
SHA256924b5bd097650ee3f5c04f4469490a513314adddf77b77e39b78207c9629a6b9
SHA5127018f20063945383ef9c830b9d69decf25274b0a2546488c70d4e536c8d6e5165516fddc45429f1fc8a5de409d7bde222f83f61b568a9d7e35254b86366518e2
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Filesize
80KB
MD5f14dde8b0f083bfcfa65979dcc7f751e
SHA1640499a912003b791cefea8742e0a115811cc012
SHA256924b5bd097650ee3f5c04f4469490a513314adddf77b77e39b78207c9629a6b9
SHA5127018f20063945383ef9c830b9d69decf25274b0a2546488c70d4e536c8d6e5165516fddc45429f1fc8a5de409d7bde222f83f61b568a9d7e35254b86366518e2
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Filesize
80KB
MD5f14dde8b0f083bfcfa65979dcc7f751e
SHA1640499a912003b791cefea8742e0a115811cc012
SHA256924b5bd097650ee3f5c04f4469490a513314adddf77b77e39b78207c9629a6b9
SHA5127018f20063945383ef9c830b9d69decf25274b0a2546488c70d4e536c8d6e5165516fddc45429f1fc8a5de409d7bde222f83f61b568a9d7e35254b86366518e2