Analysis
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max time kernel
141s -
max time network
20s -
platform
windows7_x64 -
resource
win7-20240704-en -
resource tags
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submitted
16-07-2024 07:39
General
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Target
csrss.exe
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Size
638KB
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MD5
12c26ab43202d2ef17553eeb17376c2a
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SHA1
0b6226071ab1711bbbfaca2cdad6783d2658d797
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SHA256
cb56bffb224d9bcff0753d58995c25f6f944bcb075560019cd87283e3b443aa3
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SHA512
215e497f9ead486e618b940109553a703042cc0dcd7802cd7c36aac296ddfe27a5ce693891ed50e64dd68a03ba029928ab2c302a38de04e02e5ce3b3c0661f79
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SSDEEP
12288:RQi9zSYMvrOK9BOKjHol+yFnWVOjTPlxsU807BN/9+FJeyuAJMX7QYQ:RQiE7eORaEOjRxsUrLUoJi
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 3 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of WriteProcessMemory 7 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\csrss.exe"C:\Users\Admin\AppData\Local\Temp\csrss.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-FNRPB.tmp\csrss.tmp"C:\Users\Admin\AppData\Local\Temp\is-FNRPB.tmp\csrss.tmp" /SL5="$40216,402740,84480,C:\Users\Admin\AppData\Local\Temp\csrss.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: GetForegroundWindowSpam
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
22KB
MD592dc6ef532fbb4a5c3201469a5b5eb63
SHA13e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA2569884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA5129908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3
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Filesize
719KB
MD58ff731d01f86d5ff9a326e82823cc30c
SHA19062aa438887b1f2e22e42b1adf56971b5a7e6e8
SHA2563228932ba90230ec52dac304fb9f155ba2df33dd6775093fb7f3d0ae83546a28
SHA512c4a67479069757dabfec6c8c97850f07a1ad9ca33287a06c0075289d2259e12958df36716074c61492b0a0a11924e40bf1825751974c117a151112f85d560ecc
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Filesize
784KB
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Filesize
784KB
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Filesize
108KB
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Filesize
40KB
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Filesize
108KB