Analysis
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max time kernel
29s -
max time network
32s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
25/03/2023, 12:43
Static task
static1
Behavioral task
behavioral1
Sample
cheirotherium.dll
Resource
win7-20230220-en
2 signatures
150 seconds
Behavioral task
behavioral2
Sample
cheirotherium.dll
Resource
win10v2004-20230220-en
2 signatures
150 seconds
General
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Target
cheirotherium.dll
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Size
481KB
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MD5
27abb413f6543e7a627880ec2b6bd91f
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SHA1
deffa882e0011edf87e2d141e63bc86318d223e2
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SHA256
dde364f762284b712008127922d3ab75a79687f2a03406ce87175c496cb3ae46
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SHA512
bc1b18e77dc91e52c74359b0ad9d92117ed96dde01ee4564db88e4b3e5043575caa3f21c06e1f4b4db4c60fffa5cb254bd274c1bd16d522d00bf954ea058b693
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SSDEEP
12288:FNg5j3vw+WqFlWJfkmVwe1UL4hsao3Oowg9Pdz:M55F4lhrgOon9J
Score
3/10
Malware Config
Signatures
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Program crash 1 IoCs
pid pid_target Process procid_target 900 1680 WerFault.exe 27 -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 904 wrote to memory of 1680 904 rundll32.exe 27 PID 904 wrote to memory of 1680 904 rundll32.exe 27 PID 904 wrote to memory of 1680 904 rundll32.exe 27 PID 904 wrote to memory of 1680 904 rundll32.exe 27 PID 904 wrote to memory of 1680 904 rundll32.exe 27 PID 904 wrote to memory of 1680 904 rundll32.exe 27 PID 904 wrote to memory of 1680 904 rundll32.exe 27 PID 1680 wrote to memory of 900 1680 rundll32.exe 28 PID 1680 wrote to memory of 900 1680 rundll32.exe 28 PID 1680 wrote to memory of 900 1680 rundll32.exe 28 PID 1680 wrote to memory of 900 1680 rundll32.exe 28
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\cheirotherium.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:904 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\cheirotherium.dll,#12⤵
- Suspicious use of WriteProcessMemory
PID:1680 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1680 -s 2243⤵
- Program crash
PID:900
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