Analysis
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max time kernel
145s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
25-08-2022 10:04
Behavioral task
behavioral1
Sample
dawmcro.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
dawmcro.exe
Resource
win10v2004-20220812-en
General
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Target
dawmcro.exe
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Size
42KB
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MD5
20fdace2b2e31d703355e8cb67ff6fbd
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SHA1
f0edc5f4844b2ede8815d9d800a5a5d870226a7d
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SHA256
7890dd5b3323bd32f21aea8f61343a1d7b5d487f6d9081b4566051e428a58379
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SHA512
9049a0c7c8172e43a560268140f8340c3dc3101c2b9a8e44bc7fb78b6a02608f1fb9e6fcbdf1d20e6798b2ef6f2e0fedda3c8ed1fb2eb7148749202fa56ba257
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SSDEEP
768:B+m6ERp2NGFpuZYNLsWTjCKZKfgm3EhyM:BRpAGXLsWT+F7EgM
Malware Config
Extracted
mercurialgrabber
https://discord.com/api/webhooks/971211548544618506/14fNrE_WgfMdX-C1GRaEBZFXaq4YJP6FiYBNoZBmzVXQtH76hGEshw8B-Tczk-M6JPkm
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:
dawmcro.exedescription ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions dawmcro.exe -
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
Processes:
dawmcro.exedescription ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools dawmcro.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
dawmcro.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion dawmcro.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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 ip4.seeip.org 31 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:
dawmcro.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum dawmcro.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 dawmcro.exe -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target Process procid_target 2280 1864 WerFault.exe 65 2652 2000 WerFault.exe 102 -
Checks SCSI registry key(s) 3 TTPs 1 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
dawmcro.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S dawmcro.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
dawmcro.exedescription ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 dawmcro.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString dawmcro.exe -
Enumerates system info in registry 2 TTPs 4 IoCs
Processes:
dawmcro.exedescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation dawmcro.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer dawmcro.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName dawmcro.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0 dawmcro.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
dawmcro.exedescription pid Process Token: SeDebugPrivilege 1864 dawmcro.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\dawmcro.exe"C:\Users\Admin\AppData\Local\Temp\dawmcro.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
PID:1864 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1864 -s 21562⤵
- Program crash
PID:2280
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 428 -p 1864 -ip 18641⤵PID:3624
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 424 -p 2000 -ip 20001⤵PID:3576
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2000 -s 17561⤵
- Program crash
PID:2652