Analysis
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max time kernel
92s -
max time network
124s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
27-12-2023 13:15
Static task
static1
Behavioral task
behavioral1
Sample
b1604839b3dace254776abbfbc9502a3.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
b1604839b3dace254776abbfbc9502a3.exe
Resource
win10v2004-20231222-en
General
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Target
b1604839b3dace254776abbfbc9502a3.exe
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Size
328KB
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MD5
b1604839b3dace254776abbfbc9502a3
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SHA1
ab057d68f800f597305b61980faf1c495b27588c
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SHA256
57e2778ab304e430ef5d6dd3d61f0dc26517cb6f0ea50f8eef0205fe6d6f4704
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SHA512
79db1e113d7ff7372b697677e545f837d7b1f7fea7a11600ecd8d8a071034add642adf58675ea200926c22e35b39ce874414f11bf73b64cab4594f3066388a51
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SSDEEP
6144:ajT5Zh17eWxoG/+ov/2OIQ4wW3OBsCeAW32X+t4RbUn+KqB7:aRZ+IoG/n9IQxW3OBsee2X+t4RbU+HB7
Malware Config
Extracted
mercurialgrabber
https://discord.com/api/webhooks/868559352003457034/dTdMLqh4_IpORTEPiHVx21-wA3YbOpblaXGNdGfU4SRujvYBPDaL2uE4H_TU8o2uW1KU
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:
Image Logger.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions Image Logger.exe -
Looks for VMWare Tools registry key 2 TTPs 1 IoCs
Processes:
Image Logger.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools Image Logger.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
Image Logger.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Image Logger.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
b1604839b3dace254776abbfbc9502a3.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation b1604839b3dace254776abbfbc9502a3.exe -
Executes dropped EXE 1 IoCs
Processes:
Image Logger.exepid process 1492 Image Logger.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 6 ip4.seeip.org 33 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:
Image Logger.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum Image Logger.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 Image Logger.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 1 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
Image Logger.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S Image Logger.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
Image Logger.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString Image Logger.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 Image Logger.exe -
Enumerates system info in registry 2 TTPs 4 IoCs
Processes:
Image Logger.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer Image Logger.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName Image Logger.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0 Image Logger.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation Image Logger.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
Image Logger.exedescription pid process Token: SeDebugPrivilege 1492 Image Logger.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
b1604839b3dace254776abbfbc9502a3.exedescription pid process target process PID 4932 wrote to memory of 1492 4932 b1604839b3dace254776abbfbc9502a3.exe Image Logger.exe PID 4932 wrote to memory of 1492 4932 b1604839b3dace254776abbfbc9502a3.exe Image Logger.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b1604839b3dace254776abbfbc9502a3.exe"C:\Users\Admin\AppData\Local\Temp\b1604839b3dace254776abbfbc9502a3.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4932 -
C:\Users\Admin\AppData\Local\Temp\Image Logger.exe"C:\Users\Admin\AppData\Local\Temp\Image Logger.exe"2⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Executes dropped EXE
- 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:1492
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD5b9eefe47446164d047d1d5e1da6899cd
SHA154c21fc33ca44c2fcbb431c3aad30b49ef947be9
SHA256145ce805304271d9e11ba8c5aac53a92c2bd956cc5055f4e2edf028a4822b731
SHA51283ee4b48bc72ce23453d564a9b083029a60ab351b601e254cd3fd1bce2b4cde21677d273ff449f1fd703ce3f736c0bfdee3bb4b2f5b5d0c82101222631997b07