Analysis
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max time kernel
140s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
05/11/2024, 23:51
Static task
static1
Behavioral task
behavioral1
Sample
73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe
Resource
win10v2004-20241007-en
General
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Target
73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe
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Size
5.4MB
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MD5
3a50686f11cab9303e50a2de23064eb4
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SHA1
a970490596cdcd2efb186e482eb97c464232b625
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SHA256
73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b
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SHA512
b2457ea43fbbfc326d13f5ccf95b8cd02a46e483753f4b05c6b1db525d1d082c8ad156b48b5defb45069bca17a11fccac4f89bd3dd45b10b601b32fafde1d912
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SSDEEP
49152:9GGWdQtSgRWpAIRrRLzZiNo7IcyO82MzufjWJA6ongaHLvKLA8VgbKW2llxobcJC:IKTOrRn+os45gaHrhdwC
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 2852 sysx32.exe 2860 _73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe -
Loads dropped DLL 4 IoCs
pid Process 2968 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 2968 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 2968 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 3000 dw20.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\sys32 = "C:\\Windows\\system32\\sysx32.exe" 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe -
Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\A: sysx32.exe File opened (read-only) \??\B: sysx32.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\sysx32.exe 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe File opened for modification C:\Windows\SysWOW64\sysx32.exe 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe File created C:\Windows\SysWOW64\sysx32.exe sysx32.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\7-Zip\7z.exe.tmp sysx32.exe File opened for modification C:\Program Files\7-Zip\7z.exe.tmp sysx32.exe -
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 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2968 wrote to memory of 2852 2968 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 30 PID 2968 wrote to memory of 2852 2968 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 30 PID 2968 wrote to memory of 2852 2968 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 30 PID 2968 wrote to memory of 2852 2968 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 30 PID 2968 wrote to memory of 2860 2968 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 31 PID 2968 wrote to memory of 2860 2968 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 31 PID 2968 wrote to memory of 2860 2968 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 31 PID 2968 wrote to memory of 2860 2968 73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 31 PID 2860 wrote to memory of 3000 2860 _73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 32 PID 2860 wrote to memory of 3000 2860 _73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 32 PID 2860 wrote to memory of 3000 2860 _73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe"C:\Users\Admin\AppData\Local\Temp\73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2968 -
C:\Windows\SysWOW64\sysx32.exeC:\Windows\system32\sysx32.exe /scan2⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
PID:2852
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C:\Users\Admin\AppData\Local\Temp\_73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exeC:\Users\Admin\AppData\Local\Temp\_73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2860 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exedw20.exe -x -s 11123⤵
- Loads dropped DLL
PID:3000
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5057e58827d071893a3753b6f4c0f28e5
SHA1eae153449d455bd88be061c3bd1251f9907e6e91
SHA256b3cda46b426626411cee84d174b04cd6d96bb0eefcbf811faa3d44be360d80bc
SHA5124d860c35c8eb207cbcb39de137bf5934afcbe1edf7491b2ba47681dbdc4cf55e7caf3d130496ac671bdc971c2a0e3edc4ac4be10a1f0234245268baab46afb2c
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
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C:\Users\Admin\AppData\Local\Temp\_73a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b.exe
Filesize5.3MB
MD52961d9e7c399d6d047ef063757afec75
SHA105996a47e907d1858d3f900469bbb2ff9ea104df
SHA256ffcd18191f60427b93eab508e3058f733ed5e9de9024cccf3df27e6df121eab4
SHA5122ff2d2b812220efcd57659737504e08c8c6d024ec5f186ab5f7fd8c6316f1e0d16828ad248880f33f598de50b6d3e16a576b1e372f0092107d09db0ba913c099
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Filesize
5.4MB
MD53a50686f11cab9303e50a2de23064eb4
SHA1a970490596cdcd2efb186e482eb97c464232b625
SHA25673a33d9fbd9d42877a740dfd6d72735609ed45f5114cfb41679b04d421c4ec6b
SHA512b2457ea43fbbfc326d13f5ccf95b8cd02a46e483753f4b05c6b1db525d1d082c8ad156b48b5defb45069bca17a11fccac4f89bd3dd45b10b601b32fafde1d912