Analysis
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max time kernel
95s -
max time network
96s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
07/11/2024, 15:58
Behavioral task
behavioral1
Sample
cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
Resource
win10v2004-20241007-en
General
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Target
cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
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Size
1022KB
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MD5
d745c1b6b062fa3e668b918509e80930
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SHA1
fd2b54b5718f365176cd31ad29a8fc3c989ebd59
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SHA256
cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440d
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SHA512
ec53c70773fcb2774184963cd2ac64b6fe285c2d297908bfa626d19155355ccd257064ee11d1904a497f2f8bb5dc1fa729ab3516a632761bd218a84e45391aa7
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SSDEEP
24576:v6Zv2ivhBVnFys7xP86LkRCMfi1odzqrNgBbE59DjX:vE2ivhQs7dLkNMRW+9vX
Malware Config
Signatures
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Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983} cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mspqt32.exe" cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe -
Modifies system executable filetype association 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe Set value (str) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\concp32.exe cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe File opened for modification C:\Windows\SysWOW64\concp32.exe cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe File created C:\Windows\SysWOW64\vcl32.exe cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe File created C:\Windows\SysWOW64\mspqt32.exe cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe File opened for modification C:\Windows\SysWOW64\mspqt32.exe cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe -
resource yara_rule behavioral2/memory/4392-0-0x0000000000400000-0x0000000000439000-memory.dmp upx behavioral2/files/0x000a000000023b74-5.dat upx behavioral2/memory/4392-7-0x0000000000400000-0x0000000000439000-memory.dmp upx -
Program crash 1 IoCs
pid pid_target Process procid_target 3344 4392 WerFault.exe 82 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983}\ax = c05bfb529e36ccc7a953139edbacc394 cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983} cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{42D4BB1A-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3 cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 4392 cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe"C:\Users\Admin\AppData\Local\Temp\cda5d08af50e0de1d77cfd6bb5c4352e6c05ad2f856a3408a9cbccb30232440dN.exe"1⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:4392 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4392 -s 7762⤵
- Program crash
PID:3344
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4392 -ip 43921⤵PID:5096
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Change Default File Association
1Replay Monitor
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Downloads
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Filesize
1.0MB
MD57c6022450d2921fe3b19139d32da5a46
SHA14db702553c2e1c97edbbe1380de072d992ca5be0
SHA25605ae2bd0b57877da1bfbcf5c0a32eb01c7bb9900e4af8c8e28ad6bfe085fb6a5
SHA512c77d7f98f9ab64a77bca5f3a01959dba5df24edcd151c9bd623637013e1228c144b2df6bd15782f37e6f3e05026be75a96de828c298b5d6ccebdd992dea24949