Analysis
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max time kernel
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max time network
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platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
21-05-2024 05:57
Static task
static1
Behavioral task
behavioral1
Sample
f40b1402c66949c0f502d21425b0778e079b3419c8bbaae387fb952818289baa.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
f40b1402c66949c0f502d21425b0778e079b3419c8bbaae387fb952818289baa.exe
Resource
win10v2004-20240426-en
General
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Target
f40b1402c66949c0f502d21425b0778e079b3419c8bbaae387fb952818289baa.exe
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Size
427KB
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MD5
4138bddd9501f936cf56e482441d5705
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SHA1
b1a5555f1e378771ff8a3d5422d5f08098c9b9dd
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SHA256
f40b1402c66949c0f502d21425b0778e079b3419c8bbaae387fb952818289baa
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SHA512
b7f2f6219b0e3130b62f812771e845eab15d520b3100e9985fd4f863768d3a42ca175752b480f02abaf235d51e64e56be8169a2922ade55de4f3ea8f271be43e
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SSDEEP
3072:TjtwizQTj8CSUYf8W3nSjen++Bj88OZS0/Qe2HdOylqwvtexB3no2Wq:Fuj8NDF3OR9/Qe2HdJf+3oo
Malware Config
Signatures
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Detects executables packed with ASPack 4 IoCs
resource yara_rule behavioral1/files/0x000700000001211e-3.dat INDICATOR_EXE_Packed_ASPack behavioral1/memory/1732-12-0x0000000000400000-0x0000000000425000-memory.dmp INDICATOR_EXE_Packed_ASPack behavioral1/memory/1928-13-0x0000000000400000-0x0000000000425000-memory.dmp INDICATOR_EXE_Packed_ASPack behavioral1/files/0x003100000001313a-17.dat INDICATOR_EXE_Packed_ASPack -
Deletes itself 1 IoCs
pid Process 2608 Casino_ext.exe -
Executes dropped EXE 4 IoCs
pid Process 1928 casino_extensions.exe 2316 Casino_ext.exe 2664 casino_extensions.exe 2608 Casino_ext.exe -
Loads dropped DLL 4 IoCs
pid Process 2088 casino_extensions.exe 2088 casino_extensions.exe 2600 casino_extensions.exe 2600 casino_extensions.exe -
Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\casino_extensions.exe casino_extensions.exe File created C:\Windows\SysWOW64\casino_extensions.exe casino_extensions.exe File opened for modification C:\Windows\SysWOW64\casino_extensions.exe casino_extensions.exe File created C:\Windows\SysWOW64\casino_extensions.exe casino_extensions.exe -
Drops file in Program Files directory 4 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Internet Explorer\casino_extensions.exe casino_extensions.exe File opened for modification C:\Program Files (x86)\Internet Explorer\casino_extensions.exe Casino_ext.exe File opened for modification C:\Program Files (x86)\Internet Explorer\casino_extensions.exe casino_extensions.exe File opened for modification C:\Program Files (x86)\Internet Explorer\casino_extensions.exe Casino_ext.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2316 Casino_ext.exe 2608 Casino_ext.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 1732 f40b1402c66949c0f502d21425b0778e079b3419c8bbaae387fb952818289baa.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1732 wrote to memory of 2088 1732 f40b1402c66949c0f502d21425b0778e079b3419c8bbaae387fb952818289baa.exe 28 PID 1732 wrote to memory of 2088 1732 f40b1402c66949c0f502d21425b0778e079b3419c8bbaae387fb952818289baa.exe 28 PID 1732 wrote to memory of 2088 1732 f40b1402c66949c0f502d21425b0778e079b3419c8bbaae387fb952818289baa.exe 28 PID 1732 wrote to memory of 2088 1732 f40b1402c66949c0f502d21425b0778e079b3419c8bbaae387fb952818289baa.exe 28 PID 2088 wrote to memory of 1928 2088 casino_extensions.exe 29 PID 2088 wrote to memory of 1928 2088 casino_extensions.exe 29 PID 2088 wrote to memory of 1928 2088 casino_extensions.exe 29 PID 2088 wrote to memory of 1928 2088 casino_extensions.exe 29 PID 1928 wrote to memory of 2316 1928 casino_extensions.exe 30 PID 1928 wrote to memory of 2316 1928 casino_extensions.exe 30 PID 1928 wrote to memory of 2316 1928 casino_extensions.exe 30 PID 1928 wrote to memory of 2316 1928 casino_extensions.exe 30 PID 2316 wrote to memory of 2600 2316 Casino_ext.exe 31 PID 2316 wrote to memory of 2600 2316 Casino_ext.exe 31 PID 2316 wrote to memory of 2600 2316 Casino_ext.exe 31 PID 2316 wrote to memory of 2600 2316 Casino_ext.exe 31 PID 2600 wrote to memory of 2664 2600 casino_extensions.exe 32 PID 2600 wrote to memory of 2664 2600 casino_extensions.exe 32 PID 2600 wrote to memory of 2664 2600 casino_extensions.exe 32 PID 2600 wrote to memory of 2664 2600 casino_extensions.exe 32 PID 2664 wrote to memory of 2608 2664 casino_extensions.exe 33 PID 2664 wrote to memory of 2608 2664 casino_extensions.exe 33 PID 2664 wrote to memory of 2608 2664 casino_extensions.exe 33 PID 2664 wrote to memory of 2608 2664 casino_extensions.exe 33
Processes
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C:\Users\Admin\AppData\Local\Temp\f40b1402c66949c0f502d21425b0778e079b3419c8bbaae387fb952818289baa.exe"C:\Users\Admin\AppData\Local\Temp\f40b1402c66949c0f502d21425b0778e079b3419c8bbaae387fb952818289baa.exe"1⤵
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Program Files (x86)\Internet Explorer\casino_extensions.exe"C:\Program Files (x86)\Internet Explorer\casino_extensions.exe"2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2088 -
C:\Windows\SysWOW64\casino_extensions.exeC:\Windows\system32\casino_extensions.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1928 -
C:\Windows\SysWOW64\Casino_ext.exeC:\Windows\SysWOW64\Casino_ext.exe4⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2316 -
C:\Program Files (x86)\Internet Explorer\casino_extensions.exe"C:\Program Files (x86)\Internet Explorer\casino_extensions.exe"5⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2600 -
C:\Windows\SysWOW64\casino_extensions.exeC:\Windows\system32\casino_extensions.exe6⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2664 -
C:\Windows\SysWOW64\Casino_ext.exeC:\Windows\SysWOW64\Casino_ext.exe7⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:2608
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
444KB
MD55655a376e7567275666214c4304782e6
SHA181fbb869f1e58e6c622f89e26e7b9c81723d8a9f
SHA256f1c160425ea2cccd81ec49339317f46fffdcb75ae8f375268ce25fbb03e7b30c
SHA51244f9e3ee80364db2dbdf77b2cf384ba4c6752cb32790b691411fdc46646933f0984873308b9b2193fcff2bcfd36322ee1e395d13beda2dc1b000a75a5852b0bd
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Filesize
432KB
MD573343cfade61874084c2eecba9cb9913
SHA124d1948772dddfff8cbd93f4e6be97d3c6ac9439
SHA256e3fbe9362c68d9d95529bca8c39bf820db88c58961d8faf79fd43168be2c4599
SHA5128a35404b32ee8c9003c9ffbe7e6ae7ae1f2071fb22f95a6a4ae6177fd97000e5faa576eeb5772ec7f5f57ba437ef82423212ac9391d928aeaca18bbbea977869