Analysis
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max time kernel
132s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
21-12-2023 21:49
General
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Target
05efd2eb94d751614bbe574e3c462bda.exe
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Size
363KB
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MD5
05efd2eb94d751614bbe574e3c462bda
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SHA1
3544b0e4f7ebc5da1fb99fbc3b6492babb974f7d
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SHA256
2e0116e0ddc43c5fefe56a3feb65c5088e7807eaf523715065ba3bfa4968a212
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SHA512
6a0db6ea489065ff3506d726afd89fde9ed007bbfcc60b278139eb614dafc9f371c60cf4914caa8156d756ba892f2860d85301c0579a702b6cc38f2e9b2b9066
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SSDEEP
6144:FJzFw5BxRZx7uwghZbHxcO9cNDPxADPaPUDn4EiHrDVWTIXVfqNNL5j2JtphjIEG:rz8EVh9x1wFyj41LDVHdaijxO
Malware Config
Signatures
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Buer
Buer is a new modular loader first seen in August 2019.
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Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Program crash 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\05efd2eb94d751614bbe574e3c462bda.exe"C:\Users\Admin\AppData\Local\Temp\05efd2eb94d751614bbe574e3c462bda.exe"1⤵
- Enumerates connected drives
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exepowershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\5be3993183a67720ec6c}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1848 -s 15202⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1848 -ip 18481⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
200KB
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Filesize
408KB
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Filesize
304KB
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Filesize
136KB
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Filesize
120KB
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Filesize
408KB
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Filesize
64KB
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Filesize
3.3MB
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Filesize
120KB
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Filesize
304KB
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Filesize
64KB
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Filesize
652KB
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Filesize
64KB
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Filesize
7.7MB
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Filesize
6.2MB
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Filesize
216KB
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Filesize
7.7MB
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Filesize
6.5MB
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Filesize
104KB
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Filesize
40KB
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Filesize
600KB
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Filesize
68KB
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Filesize
64KB
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Filesize
64KB
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Filesize
56KB
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Filesize
80KB
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Filesize
104KB
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Filesize
32KB
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Filesize
7.7MB