Analysis
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max time kernel
31s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
10/03/2023, 22:09
Static task
static1
Behavioral task
behavioral1
Sample
a33f56d05b03c4bb75c972f8ddbb69b7a815484bee117a63c16b4c8dfca1543a.dll
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
a33f56d05b03c4bb75c972f8ddbb69b7a815484bee117a63c16b4c8dfca1543a.dll
Resource
win10v2004-20230220-en
General
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Target
a33f56d05b03c4bb75c972f8ddbb69b7a815484bee117a63c16b4c8dfca1543a.dll
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Size
5.6MB
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MD5
58f99b07c5fa365700193f441a53963b
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SHA1
2d5d46b5b80ad842c462d1ade5fbdb6822f38735
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SHA256
a33f56d05b03c4bb75c972f8ddbb69b7a815484bee117a63c16b4c8dfca1543a
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SHA512
86d29496c2653fd6b962013ff567efb5dc0bfecc6f51f6b6275a7d16bc9533e34c444bd76efae1ebed11a27f40726d167a32fea74d7b73d1a147da66ec7e3611
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SSDEEP
98304:z/q6lOv0yBTBGj+GQw/7CbM8NWT/riv9HN9zX:z/q6lOv0yBT+dCbM8NWT/elnX
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
pid pid_target Process procid_target 1312 1308 WerFault.exe 17 -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe 1308 rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1308 wrote to memory of 1312 1308 rundll32.exe 28 PID 1308 wrote to memory of 1312 1308 rundll32.exe 28 PID 1308 wrote to memory of 1312 1308 rundll32.exe 28
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\a33f56d05b03c4bb75c972f8ddbb69b7a815484bee117a63c16b4c8dfca1543a.dll,#11⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1308 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1308 -s 2402⤵
- Program crash
PID:1312
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