Analysis
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max time kernel
121s -
max time network
126s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
01-07-2024 01:21
Static task
static1
Behavioral task
behavioral1
Sample
25c55b3375e83d2468334b7b4a0890d3.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
25c55b3375e83d2468334b7b4a0890d3.exe
Resource
win10v2004-20240508-en
General
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Target
25c55b3375e83d2468334b7b4a0890d3.exe
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Size
43.5MB
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MD5
25c55b3375e83d2468334b7b4a0890d3
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SHA1
d8e901fe2d6adf9309aa8627306742baa4d0a38b
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SHA256
d76d821710495686c404cd23de38da5776b2826d6814192e63198c8b1c7df68e
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SHA512
ab311bebf707d359193423df2e3b216ce91c81cbab7a76fa2b4cfb4ef8256b5d66e29ba89c99009c035ee81d4dfc3be929584f38711a62e9e8fbbd83c6a4db1a
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SSDEEP
786432:9wYnIe84d7m8/Mw5CaXv2S3IPlv5OqlICX1atGLJcez+yzqFqikJaaZRTdcH+wEj:9wYn7dX/uyv28Id5PlIQk0qeyOq8DrRv
Malware Config
Signatures
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Loads dropped DLL 2 IoCs
Processes:
25c55b3375e83d2468334b7b4a0890d3.exepid process 2964 25c55b3375e83d2468334b7b4a0890d3.exe 2964 25c55b3375e83d2468334b7b4a0890d3.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
25c55b3375e83d2468334b7b4a0890d3.exedescription ioc process File opened for modification \??\PhysicalDrive0 25c55b3375e83d2468334b7b4a0890d3.exe -
Drops file in Program Files directory 2 IoCs
Processes:
25c55b3375e83d2468334b7b4a0890d3.exedescription ioc process File created C:\Program Files (x86)\LuDaShi\{CFA89BAB-364E-41e9-89C6-922635C48B51}.tf 25c55b3375e83d2468334b7b4a0890d3.exe File created C:\Program Files (x86)\LuDaShi\{80607746-B8E3-4eb8-908A-151A8FC30682}.tmp\{0B904A50-C00D-4994-A787-C7C1AF6AD8C2}.tf 25c55b3375e83d2468334b7b4a0890d3.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2480 2964 WerFault.exe 25c55b3375e83d2468334b7b4a0890d3.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
25c55b3375e83d2468334b7b4a0890d3.exedescription pid process target process PID 2964 wrote to memory of 2480 2964 25c55b3375e83d2468334b7b4a0890d3.exe WerFault.exe PID 2964 wrote to memory of 2480 2964 25c55b3375e83d2468334b7b4a0890d3.exe WerFault.exe PID 2964 wrote to memory of 2480 2964 25c55b3375e83d2468334b7b4a0890d3.exe WerFault.exe PID 2964 wrote to memory of 2480 2964 25c55b3375e83d2468334b7b4a0890d3.exe WerFault.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\25c55b3375e83d2468334b7b4a0890d3.exe"C:\Users\Admin\AppData\Local\Temp\25c55b3375e83d2468334b7b4a0890d3.exe"1⤵
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2964 -s 10482⤵
- Program crash
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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\Users\Admin\AppData\Local\Temp\{4FB29F01-444C-4b44-80D6-79A53B27A387}.tmp\7z.dllFilesize
1.1MB
MD52888126384d873cc49af32bbe34bb296
SHA1fe74877bcaec93c7d67dab2ce8c86cfc38402d22
SHA256aba19501a8033495664879e09e60e4788537d387cf038fa8769e5b178bccdcb4
SHA512f283b721b27d85fbc7a4e1e91ab1683da0c3888f632873625c4c2b48caa170471aaa84e107230988f615d3f43e40a640607d6e6f641aed59788dee441801748a
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\Users\Admin\AppData\Local\Temp\{C0E13BC3-21FA-4a83-B2BC-A485FE9BAD3D}.tmp\NetBridge.dllFilesize
231KB
MD59d145902fb5b9a6da62ac85761434e31
SHA1c817d77f59e3767d75cf5f5298d6b5711308f7e5
SHA25698d795d55329b1057f4fd590468e648a8c34b620207fd9a0a6953f3e98d1ea43
SHA512bbb3109bcd5ded909bfdaeb7f4f006fc5928a9bc501bad5ae8ba9805bc0d924a2c4da8bbd215480db936d663852abd9b0435fa241a40224a4cd93c4b7aff79a9
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memory/2964-40-0x0000000000700000-0x0000000000701000-memory.dmpFilesize
4KB