Analysis
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max time kernel
114s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
29/03/2024, 21:10
Static task
static1
Behavioral task
behavioral1
Sample
503dedc4758ed147987b60cd85cb733d8066834d8f67c32945352d46c5d772e7.dll
Resource
win7-20240215-en
General
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Target
503dedc4758ed147987b60cd85cb733d8066834d8f67c32945352d46c5d772e7.dll
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Size
348KB
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MD5
0890ffae079771502dde6378802ccb6f
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SHA1
b9bcba240c077f7c41f78bc963bfc1c7c4a1ba35
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SHA256
503dedc4758ed147987b60cd85cb733d8066834d8f67c32945352d46c5d772e7
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SHA512
e22fed1fe162c4a26cc9b2ec85bdd129d6523e6073ae39ea3c4c4bd7d5f799a1c7520963153b08660abf4a4e96f9c65dd6b4899d80c410d1513fd12635970e4d
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SSDEEP
3072:qfRBoKJlyQNZhF27Cr4LSz1RNeyOb2EqMGzs4VlS0q0EF:qpFHNrcur4LSz1RZOyEqMj4VlS0q0k
Malware Config
Signatures
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UPX dump on OEP (original entry point) 2 IoCs
resource yara_rule behavioral2/memory/1684-7-0x0000000000400000-0x0000000000432000-memory.dmp UPX behavioral2/memory/1684-10-0x00000000005C0000-0x00000000005F2000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 1684 rundll32mgr.exe -
Loads dropped DLL 1 IoCs
pid Process 1684 rundll32mgr.exe -
resource yara_rule behavioral2/memory/1684-7-0x0000000000400000-0x0000000000432000-memory.dmp upx -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\rundll32mgr.exe rundll32.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2580 1684 WerFault.exe 94 -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4956 wrote to memory of 4600 4956 rundll32.exe 91 PID 4956 wrote to memory of 4600 4956 rundll32.exe 91 PID 4956 wrote to memory of 4600 4956 rundll32.exe 91 PID 4600 wrote to memory of 1684 4600 rundll32.exe 94 PID 4600 wrote to memory of 1684 4600 rundll32.exe 94 PID 4600 wrote to memory of 1684 4600 rundll32.exe 94
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\503dedc4758ed147987b60cd85cb733d8066834d8f67c32945352d46c5d772e7.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:4956 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\503dedc4758ed147987b60cd85cb733d8066834d8f67c32945352d46c5d772e7.dll,#12⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4600 -
C:\Windows\SysWOW64\rundll32mgr.exeC:\Windows\SysWOW64\rundll32mgr.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1684 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 5164⤵
- Program crash
PID:2580
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1684 -ip 16841⤵PID:3028
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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=1032 --field-trial-handle=2228,i,521073434451423547,2311651514500527526,262144 --variations-seed-version /prefetch:81⤵PID:4596
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
1.6MB
MD54f3387277ccbd6d1f21ac5c07fe4ca68
SHA1e16506f662dc92023bf82def1d621497c8ab5890
SHA256767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA5129da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219
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Filesize
157KB
MD52ad7467eeceedd64b8bd4f6e04c3cd49
SHA1d6c5d9878dc49ae9b531d61283609e207154a921
SHA2562aab17b2f18dfb70cd737b27b1a438ad8878889070a6e025b3684483054f60c9
SHA5127a647d4a8de90d11cd5afb82ace8354869af0893f28afcf9491d1d4de421315d9a394a5d3462d88c0eff6c5a7a4ed41897d8d0498b59b4b7428ddbb61786be2a