Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system - submitted
13/06/2024, 03:49
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe
Resource
win7-20240611-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe
Resource
win10v2004-20240611-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe
- Size 82KB
- Sample240613-edpxcstbqc
- SHA256 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4
- MD5 18c39893745cecb4fddc0fc599f335a6
- SHA1 0ee024872200f3d5f6062c5ab87ce17e8215b98e
- SHA512 c56b15b2dcca1fd8a013348517fe87d8dca1de19cb72b4cea0a58a59c2a87987c36455d2fad1ba7d413b3fee689e4a037b249715d3d1203d7b8eb65525df16c6
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOygke6:GhfxHNIreQm+Hi9gke6
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4688 rundll32.exe - Modifies system executable filetype association 2 TTPs 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.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 Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe - Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\¢«.exe f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe File created C:\Windows\SysWOW64\¢«.exe f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe File opened for modification C:\Windows\SysWOW64\notepad¢¬.exe f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe File created C:\Windows\SysWOW64\notepad¢¬.exe f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe - Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\system\rundll32.exe f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe File created C:\Windows\system\rundll32.exe f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe - Modifies registry class 15 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*" f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718250588" rundll32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718250588" rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\MSipv f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe Key created \REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1" f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*" f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506" rundll32.exe Key created \REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command rundll32.exe - Suspicious behavior: EnumeratesProcesses 28 IoCs
pid Process 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4688 rundll32.exe - Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 4688 rundll32.exe 4688 rundll32.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1124 wrote to memory of 4688 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 92 PID 1124 wrote to memory of 4688 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 92 PID 1124 wrote to memory of 4688 1124 f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe 92
Processes
-
C:\Users\Admin\AppData\Local\Temp\f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe"C:\Users\Admin\AppData\Local\Temp\f81fafc8ba7fa5f8268d6bb62d4a9d63138203e42f1522a9b4323706f03fd6c4.exe"1⤵
- 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:1124 -
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:4688
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1308,i,3144109701624127473,12586215149656995128,262144 --variations-seed-version --mojo-platform-channel-handle=4240 /prefetch:81⤵PID:400
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Windows\SysWOW64\notepad¢¬.exe
- Size 80KB
- SHA256 3aed40e0bd979ae32e1a3559de53c7f36ed8c5950225567008dfc8368d8305f3
- MD5 09b2173e6005ac5f6211215dde46742b
- SHA1 3d06cd66b7c4474f9d924ee644d58f9980a2d30a
- SHA512 61f727e43929b1718eae7c6595aa885403b0802e197b230154f1fdcedb0505c2a540b70de3b4e5ac62e704ca67b980e2a79043cc65bf90a1748cfe05a2c35397
- SSDEEP 768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOrs:RshfSWHHNvoLqNwDDGw02eQmh0HjWOg
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\System\rundll32.exe
- Size 84KB
- SHA256 7e55fe2048835f8692b75fdd4d7ede4f665ce17499a7804977efe0273af81b16
- MD5 c7710dfec75ce50b1156c17b9af28955
- SHA1 0b9068612718b623bfabe30c6b39fa8124216096
- SHA512 f4d51990fb926f98fd230cc5841596f88ed24fd3b476ca02e4305dccc836e814aa4eb14b41c005af8e565a004f42ac453821c095b20dd93139ee0dc1cc1e0389
- SSDEEP 1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOJdXRzVQ:GhfxHNIreQm+Hi+dXRzVQ
- MD5 SHA1 SHA512 SSDEEP