Analysis
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max time kernel
16s -
max time network
48s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 11:16
Static task
static1
Behavioral task
behavioral1
Sample
d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe
Resource
win10v2004-20220812-en
General
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Target
d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe
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Size
2.5MB
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MD5
014cd3b072e74479189692d7b068d67e
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SHA1
5556f2f93ae98cdb45c8f1c03fa9ca16d8ba21cd
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SHA256
d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0
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SHA512
815da85ab36b1adb9c4adb51895bdc5005b928f0ac7465e1ad5f5c86daf4c404f92a358bbf9673cffe7f4c93814a9ac26ead8bae9d503329acb190aae200f8c0
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SSDEEP
49152:b1dlZoWMS9mY55KihPqtsdDbncedgl4NGzF2mgmEdv42gZ7KaRnPpHoM:b1dl2LSxPhyWN1gGNIUoag1KaRnRn
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
Arhack.net-virus-noir.exepid process 892 Arhack.net-virus-noir.exe -
Loads dropped DLL 6 IoCs
Processes:
d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exeWerFault.exepid process 1376 d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe 1376 d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe 996 WerFault.exe 996 WerFault.exe 996 WerFault.exe 996 WerFault.exe -
Drops file in Program Files directory 3 IoCs
Processes:
d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exedescription ioc process File created C:\Program Files\Arhack.net-virus-noir.exe d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe File created C:\Program Files\WinRar3.90.En.32Bit.exe d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe File opened for modification C:\Program Files\¿êŠÌqØî&½Û×ìHéúÙ\ªãÎvéu%¢ú–‹u,À,Ò¯1ÞejPß-«éO^Úõ d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe -
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
Processes:
WerFault.exepid pid_target process target process 996 892 WerFault.exe Arhack.net-virus-noir.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exeArhack.net-virus-noir.exedescription pid process target process PID 1376 wrote to memory of 892 1376 d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe Arhack.net-virus-noir.exe PID 1376 wrote to memory of 892 1376 d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe Arhack.net-virus-noir.exe PID 1376 wrote to memory of 892 1376 d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe Arhack.net-virus-noir.exe PID 1376 wrote to memory of 892 1376 d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe Arhack.net-virus-noir.exe PID 892 wrote to memory of 996 892 Arhack.net-virus-noir.exe WerFault.exe PID 892 wrote to memory of 996 892 Arhack.net-virus-noir.exe WerFault.exe PID 892 wrote to memory of 996 892 Arhack.net-virus-noir.exe WerFault.exe PID 892 wrote to memory of 996 892 Arhack.net-virus-noir.exe WerFault.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe"C:\Users\Admin\AppData\Local\Temp\d8b1a5c0c766d20098a5af5ab0bb15b0f94fb996325750709532aad1b9f7fab0.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1376 -
C:\Program Files\Arhack.net-virus-noir.exe"C:\Program Files\Arhack.net-virus-noir.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:892 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 892 -s 883⤵
- Loads dropped DLL
- Program crash
PID:996
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
-
Filesize
52KB
MD55900fd3e57de9eb88818a81d82b589b7
SHA1d15ff0f4c904581c89066f853568a70e03196723
SHA2569d2caf5ff2f1897ac2d32a64128ef195d70c3cf8fb911c73cafdc3ef51a32e4e
SHA512757b88a887ad87ccd617bcf7dd596449a07c91478be954c1ecb22d179ccab50d1bd203d0e60030d5ce09c6a426e467da419cedb17dd37d70d42d2ef5428142db
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Filesize
52KB
MD55900fd3e57de9eb88818a81d82b589b7
SHA1d15ff0f4c904581c89066f853568a70e03196723
SHA2569d2caf5ff2f1897ac2d32a64128ef195d70c3cf8fb911c73cafdc3ef51a32e4e
SHA512757b88a887ad87ccd617bcf7dd596449a07c91478be954c1ecb22d179ccab50d1bd203d0e60030d5ce09c6a426e467da419cedb17dd37d70d42d2ef5428142db
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Filesize
52KB
MD55900fd3e57de9eb88818a81d82b589b7
SHA1d15ff0f4c904581c89066f853568a70e03196723
SHA2569d2caf5ff2f1897ac2d32a64128ef195d70c3cf8fb911c73cafdc3ef51a32e4e
SHA512757b88a887ad87ccd617bcf7dd596449a07c91478be954c1ecb22d179ccab50d1bd203d0e60030d5ce09c6a426e467da419cedb17dd37d70d42d2ef5428142db
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Filesize
52KB
MD55900fd3e57de9eb88818a81d82b589b7
SHA1d15ff0f4c904581c89066f853568a70e03196723
SHA2569d2caf5ff2f1897ac2d32a64128ef195d70c3cf8fb911c73cafdc3ef51a32e4e
SHA512757b88a887ad87ccd617bcf7dd596449a07c91478be954c1ecb22d179ccab50d1bd203d0e60030d5ce09c6a426e467da419cedb17dd37d70d42d2ef5428142db
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Filesize
52KB
MD55900fd3e57de9eb88818a81d82b589b7
SHA1d15ff0f4c904581c89066f853568a70e03196723
SHA2569d2caf5ff2f1897ac2d32a64128ef195d70c3cf8fb911c73cafdc3ef51a32e4e
SHA512757b88a887ad87ccd617bcf7dd596449a07c91478be954c1ecb22d179ccab50d1bd203d0e60030d5ce09c6a426e467da419cedb17dd37d70d42d2ef5428142db
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Filesize
52KB
MD55900fd3e57de9eb88818a81d82b589b7
SHA1d15ff0f4c904581c89066f853568a70e03196723
SHA2569d2caf5ff2f1897ac2d32a64128ef195d70c3cf8fb911c73cafdc3ef51a32e4e
SHA512757b88a887ad87ccd617bcf7dd596449a07c91478be954c1ecb22d179ccab50d1bd203d0e60030d5ce09c6a426e467da419cedb17dd37d70d42d2ef5428142db
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Filesize
52KB
MD55900fd3e57de9eb88818a81d82b589b7
SHA1d15ff0f4c904581c89066f853568a70e03196723
SHA2569d2caf5ff2f1897ac2d32a64128ef195d70c3cf8fb911c73cafdc3ef51a32e4e
SHA512757b88a887ad87ccd617bcf7dd596449a07c91478be954c1ecb22d179ccab50d1bd203d0e60030d5ce09c6a426e467da419cedb17dd37d70d42d2ef5428142db