Analysis
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max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 10:49
Static task
static1
Behavioral task
behavioral1
Sample
c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exe
Resource
win10v2004-20220812-en
General
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Target
c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exe
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Size
28KB
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MD5
e175f67434cd197a20050e38fce71736
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SHA1
bd6939de1dda4cf658403c6c057024e5dd7746a9
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SHA256
c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54
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SHA512
134bf5a6bd66cb190624b747d390b03ecde5aa03dce4a580b3b961857af4a0f3c8d3a8a9d5f1d8d57806273e600fb4a12c21420db9ebcd2b7d483a2aae8efc4a
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SSDEEP
384:2UonGN8G07mxtT4GIBfTTzzYJxru+j1/yzqUbIXi7jm4vG1+:xon+8G07mxqNTTzzYD96H7/o+
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
Aiigsmg.exeAiigsmg.exepid process 3608 Aiigsmg.exe 400 Aiigsmg.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exe -
Drops file in System32 directory 5 IoCs
Processes:
Aiigsmg.exedescription ioc process File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 Aiigsmg.exe File created C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE\NetSyst72[1].htm Aiigsmg.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 Aiigsmg.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE Aiigsmg.exe File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies Aiigsmg.exe -
Drops file in Program Files directory 4 IoCs
Processes:
Aiigsmg.exec5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exedescription ioc process File opened for modification C:\Program Files\AppPatch\NetSyst72.dll Aiigsmg.exe File created C:\Program Files (x86)\Microsoft Ehivmp\Aiigsmg.exe c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exe File opened for modification C:\Program Files (x86)\Microsoft Ehivmp\Aiigsmg.exe c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exe File created C:\Program Files\AppPatch\NetSyst72.dll Aiigsmg.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies data under HKEY_USERS 8 IoCs
Processes:
Aiigsmg.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" Aiigsmg.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ Aiigsmg.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1" Aiigsmg.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1" Aiigsmg.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1" Aiigsmg.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0" Aiigsmg.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix Aiigsmg.exe Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" Aiigsmg.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exedescription pid process target process PID 4808 wrote to memory of 3608 4808 c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exe Aiigsmg.exe PID 4808 wrote to memory of 3608 4808 c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exe Aiigsmg.exe PID 4808 wrote to memory of 3608 4808 c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exe Aiigsmg.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exe"C:\Users\Admin\AppData\Local\Temp\c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54.exe"1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4808 -
C:\Program Files (x86)\Microsoft Ehivmp\Aiigsmg.exe"C:\Program Files (x86)\Microsoft Ehivmp\Aiigsmg.exe"2⤵
- Executes dropped EXE
PID:3608
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C:\Program Files (x86)\Microsoft Ehivmp\Aiigsmg.exe"C:\Program Files (x86)\Microsoft Ehivmp\Aiigsmg.exe"1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies data under HKEY_USERS
PID:400
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
28KB
MD5e175f67434cd197a20050e38fce71736
SHA1bd6939de1dda4cf658403c6c057024e5dd7746a9
SHA256c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54
SHA512134bf5a6bd66cb190624b747d390b03ecde5aa03dce4a580b3b961857af4a0f3c8d3a8a9d5f1d8d57806273e600fb4a12c21420db9ebcd2b7d483a2aae8efc4a
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Filesize
28KB
MD5e175f67434cd197a20050e38fce71736
SHA1bd6939de1dda4cf658403c6c057024e5dd7746a9
SHA256c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54
SHA512134bf5a6bd66cb190624b747d390b03ecde5aa03dce4a580b3b961857af4a0f3c8d3a8a9d5f1d8d57806273e600fb4a12c21420db9ebcd2b7d483a2aae8efc4a
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Filesize
28KB
MD5e175f67434cd197a20050e38fce71736
SHA1bd6939de1dda4cf658403c6c057024e5dd7746a9
SHA256c5fac06dc5490d853ef24b050d1d738a4d2aeffe123bb4e4ca858a47d4792b54
SHA512134bf5a6bd66cb190624b747d390b03ecde5aa03dce4a580b3b961857af4a0f3c8d3a8a9d5f1d8d57806273e600fb4a12c21420db9ebcd2b7d483a2aae8efc4a