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Analysis
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max time kernel
143s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
21/04/2024, 04:31
Static task
static1
Behavioral task
behavioral1
Sample
f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
Resource
win10v2004-20240226-en
General
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Target
f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
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Size
249KB
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MD5
858c2faf6e30e22a3538ca9a8f16594f
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SHA1
e737b62c01bb087998634ed824d13c6692a8ddfa
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SHA256
f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4
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SHA512
255ece43bf5142004daef79f78ad8238803a1df4a65c044ef8cbc07029c7e5812b1c309cd7640124976a748dca3b091709b289c6b972c75a45bda26a50a7dfa0
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SSDEEP
3072:MRAhhcsxgAJuK7bZD01GoI0ONtNmlngmx5MOatnF0TWLwFqoLnbrfZ2wYdc87jbt:MRAhhJxX7bNIFlvWLcDffZMX31L7
Malware Config
Signatures
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Modifies Installed Components in the registry 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983} f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msess32.exe" f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.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\" %*" f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.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" f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe" f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe -
Drops file in System32 directory 6 IoCs
description ioc Process File created C:\Windows\SysWOW64\concp32.exe f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe File opened for modification C:\Windows\SysWOW64\concp32.exe f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe File created C:\Windows\SysWOW64\vcl32.exe f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe File opened for modification C:\Windows\SysWOW64\vcl32.exe f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe File created C:\Windows\SysWOW64\msess32.exe f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe File opened for modification C:\Windows\SysWOW64\msess32.exe f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 3204 5004 WerFault.exe 90 -
Modifies registry class 5 IoCs
description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 7fbb53078314cf437711c6d7e9705a82 f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*" f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983} f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32 f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{5FA433CE-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9 f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 5004 f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe"C:\Users\Admin\AppData\Local\Temp\f1736d2df5184c5f076b522de328845b7e7b32d81ac05aa2c03daf6096bc45f4.exe"1⤵
- Modifies Installed Components in the registry
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:5004 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 7042⤵
- Program crash
PID:3204
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 5004 -ip 50041⤵PID:3104
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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 --no-appcompat-clear --mojo-platform-channel-handle=4472 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:81⤵PID:4584
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Event Triggered Execution
1Change Default File Association
1Replay Monitor
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Downloads
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Filesize
256KB
MD50dd982531e1807271473f324e9c4a91e
SHA17c1b091102e024da017bc7d0a679a3eec9d4eb62
SHA256ed4138a815e1c1e95b9129a4be69fc515ffd0e655297aab1154acd0f3e22c1d6
SHA5122ea0867d41864b6b86df70ac5d0ffc5333418a6afbb95add3f8c847e3749d29fc37f0cb53d9c116010db0b9a8355c53e63639066c1d5d967e2cdab8c24a571c4