Analysis
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max time kernel
83s -
max time network
134s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
03-10-2022 23:29
Behavioral task
behavioral1
Sample
0x000500000000b2d2-57.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
0x000500000000b2d2-57.exe
Resource
win10v2004-20220901-en
General
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Target
0x000500000000b2d2-57.exe
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Size
41KB
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MD5
5f34fc15a6555433e91d8dc0564d2092
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SHA1
dc786e4ddf9af8de8909da2489d2848dd39f762a
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SHA256
c35218e577fe12ad1aa6835840f5b762893aeaa7759ea39aef6ef6b15a954e8c
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SHA512
fb90d8cfddd514cfc196149169c64578c11433ad27d0a0efc7394eae6b7a2f458d9184b84eec730e1a1ae1c5248a6749e6f21cdad42e1387e33ba1a23766b238
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SSDEEP
768:escaIiIqfT6aGpDXswguZkeQWTjMKZKfgm3EhrB:tc1ofnGEeQWTYF7ERB
Malware Config
Extracted
mercurialgrabber
https://discord.com/api/webhooks/1020039781461270569/vy0h8kS-gC86OffrPKkierhCOJQYdMCGfu4Dr7HRyL4VcCHEP6llcvNaOkPDg-SgwAnl
Signatures
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Mercurial Grabber Stealer
Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
Processes:
0x000500000000b2d2-57.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions 0x000500000000b2d2-57.exe -
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
Processes:
0x000500000000b2d2-57.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools 0x000500000000b2d2-57.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
0x000500000000b2d2-57.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 0x000500000000b2d2-57.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 13 ip4.seeip.org 14 ip4.seeip.org 18 ip-api.com -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
Processes:
0x000500000000b2d2-57.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 0x000500000000b2d2-57.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 0x000500000000b2d2-57.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4724 3168 WerFault.exe 0x000500000000b2d2-57.exe -
Checks SCSI registry key(s) 3 TTPs 1 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
0x000500000000b2d2-57.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S 0x000500000000b2d2-57.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
0x000500000000b2d2-57.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 0x000500000000b2d2-57.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 0x000500000000b2d2-57.exe -
Enumerates system info in registry 2 TTPs 4 IoCs
Processes:
0x000500000000b2d2-57.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation 0x000500000000b2d2-57.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer 0x000500000000b2d2-57.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName 0x000500000000b2d2-57.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0 0x000500000000b2d2-57.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
0x000500000000b2d2-57.exedescription pid process Token: SeDebugPrivilege 3168 0x000500000000b2d2-57.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0x000500000000b2d2-57.exe"C:\Users\Admin\AppData\Local\Temp\0x000500000000b2d2-57.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Checks SCSI registry key(s)
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 3168 -s 20722⤵
- Program crash
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 460 -p 3168 -ip 31681⤵