Analysis
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max time kernel
147s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
09-05-2024 10:03
Static task
static1
Behavioral task
behavioral1
Sample
5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe
Resource
win10v2004-20240426-en
General
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Target
5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe
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Size
908KB
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MD5
1b8e229e83f21a946115606f54fe6b8d
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SHA1
cf230bc4206a1789858160a0f2d3a87ed14c36a9
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SHA256
5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070
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SHA512
1f9911b01d8e3e177badb698819c06c490e3e376e23f40f99b995633e8b033427f2d5120c88d4f373a6fc3bb6e3ba5bbf526d6fa81097a188bf6f963e40bb0d1
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SSDEEP
24576:dzobfftwFNnnpXNihW/lZpM8fsp/vY6Jvui7Uxmt9H16OE:dcbXtANn1EhWxMW2+eUxmtV1XE
Malware Config
Extracted
remcos
PAPI
64.188.26.202:1604
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-YMJ2R9
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/2956-81-0x0000000000400000-0x0000000000462000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral1/memory/932-82-0x0000000000400000-0x0000000000478000-memory.dmp WebBrowserPassView -
Nirsoft 3 IoCs
resource yara_rule behavioral1/memory/864-86-0x0000000000400000-0x0000000000424000-memory.dmp Nirsoft behavioral1/memory/932-82-0x0000000000400000-0x0000000000478000-memory.dmp Nirsoft behavioral1/memory/2956-81-0x0000000000400000-0x0000000000462000-memory.dmp Nirsoft -
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2468 powershell.exe -
Executes dropped EXE 1 IoCs
pid Process 2764 svchost.exe -
Loads dropped DLL 6 IoCs
pid Process 2272 cmd.exe 2140 WerFault.exe 2140 WerFault.exe 2140 WerFault.exe 2140 WerFault.exe 2140 WerFault.exe -
Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts wmplayer.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\"" 5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA svchost.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 2764 set thread context of 2820 2764 svchost.exe 40 PID 2820 set thread context of 932 2820 wmplayer.exe 44 PID 2820 set thread context of 2956 2820 wmplayer.exe 45 PID 2820 set thread context of 864 2820 wmplayer.exe 46 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2508 schtasks.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 2588 timeout.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 1888 5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe 1888 5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe 1888 5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe 2468 powershell.exe 932 wmplayer.exe 932 wmplayer.exe -
Suspicious behavior: MapViewOfSection 3 IoCs
pid Process 2820 wmplayer.exe 2820 wmplayer.exe 2820 wmplayer.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1888 5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe Token: SeDebugPrivilege 2764 svchost.exe Token: SeDebugPrivilege 2468 powershell.exe Token: SeDebugPrivilege 864 wmplayer.exe -
Suspicious use of WriteProcessMemory 60 IoCs
description pid Process procid_target PID 1888 wrote to memory of 2604 1888 5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe 29 PID 1888 wrote to memory of 2604 1888 5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe 29 PID 1888 wrote to memory of 2604 1888 5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe 29 PID 1888 wrote to memory of 2272 1888 5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe 31 PID 1888 wrote to memory of 2272 1888 5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe 31 PID 1888 wrote to memory of 2272 1888 5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe 31 PID 2272 wrote to memory of 2588 2272 cmd.exe 33 PID 2272 wrote to memory of 2588 2272 cmd.exe 33 PID 2272 wrote to memory of 2588 2272 cmd.exe 33 PID 2604 wrote to memory of 2508 2604 cmd.exe 34 PID 2604 wrote to memory of 2508 2604 cmd.exe 34 PID 2604 wrote to memory of 2508 2604 cmd.exe 34 PID 2272 wrote to memory of 2764 2272 cmd.exe 35 PID 2272 wrote to memory of 2764 2272 cmd.exe 35 PID 2272 wrote to memory of 2764 2272 cmd.exe 35 PID 2764 wrote to memory of 2468 2764 svchost.exe 37 PID 2764 wrote to memory of 2468 2764 svchost.exe 37 PID 2764 wrote to memory of 2468 2764 svchost.exe 37 PID 2764 wrote to memory of 2940 2764 svchost.exe 39 PID 2764 wrote to memory of 2940 2764 svchost.exe 39 PID 2764 wrote to memory of 2940 2764 svchost.exe 39 PID 2764 wrote to memory of 2940 2764 svchost.exe 39 PID 2764 wrote to memory of 2940 2764 svchost.exe 39 PID 2764 wrote to memory of 2940 2764 svchost.exe 39 PID 2764 wrote to memory of 2940 2764 svchost.exe 39 PID 2764 wrote to memory of 2940 2764 svchost.exe 39 PID 2764 wrote to memory of 2940 2764 svchost.exe 39 PID 2764 wrote to memory of 2940 2764 svchost.exe 39 PID 2764 wrote to memory of 2940 2764 svchost.exe 39 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2820 2764 svchost.exe 40 PID 2764 wrote to memory of 2140 2764 svchost.exe 41 PID 2764 wrote to memory of 2140 2764 svchost.exe 41 PID 2764 wrote to memory of 2140 2764 svchost.exe 41 PID 2820 wrote to memory of 932 2820 wmplayer.exe 44 PID 2820 wrote to memory of 932 2820 wmplayer.exe 44 PID 2820 wrote to memory of 932 2820 wmplayer.exe 44 PID 2820 wrote to memory of 932 2820 wmplayer.exe 44 PID 2820 wrote to memory of 932 2820 wmplayer.exe 44 PID 2820 wrote to memory of 2956 2820 wmplayer.exe 45 PID 2820 wrote to memory of 2956 2820 wmplayer.exe 45 PID 2820 wrote to memory of 2956 2820 wmplayer.exe 45 PID 2820 wrote to memory of 2956 2820 wmplayer.exe 45 PID 2820 wrote to memory of 2956 2820 wmplayer.exe 45 PID 2820 wrote to memory of 864 2820 wmplayer.exe 46 PID 2820 wrote to memory of 864 2820 wmplayer.exe 46 PID 2820 wrote to memory of 864 2820 wmplayer.exe 46 PID 2820 wrote to memory of 864 2820 wmplayer.exe 46 PID 2820 wrote to memory of 864 2820 wmplayer.exe 46 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.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:\Users\Admin\AppData\Local\Temp\5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe"C:\Users\Admin\AppData\Local\Temp\5311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070.exe"1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1888 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2604 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'3⤵
- Creates scheduled task(s)
PID:2508
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C:\Windows\system32\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp39E5.tmp.bat""2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2272 -
C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
PID:2588
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C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"3⤵
- UAC bypass
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2764 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\svchost.exe" -Force4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2468
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C:\Windows\System32\notepad.exe"C:\Windows\System32\notepad.exe"4⤵PID:2940
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C:\Program Files (x86)\Windows Media Player\wmplayer.exe"C:\Program Files (x86)\Windows Media Player\wmplayer.exe"4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2820 -
C:\Program Files (x86)\Windows Media Player\wmplayer.exe"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /stext "C:\Users\Admin\AppData\Local\Temp\naxtweagdgyhmdduruvckozmlipizzjk"5⤵
- Suspicious behavior: EnumeratesProcesses
PID:932
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C:\Program Files (x86)\Windows Media Player\wmplayer.exe"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /stext "C:\Users\Admin\AppData\Local\Temp\qckex"5⤵
- Accesses Microsoft Outlook accounts
PID:2956
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C:\Program Files (x86)\Windows Media Player\wmplayer.exe"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /stext "C:\Users\Admin\AppData\Local\Temp\awpwxhwc"5⤵
- Suspicious use of AdjustPrivilegeToken
PID:864
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2764 -s 7444⤵
- Loads dropped DLL
PID:2140
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2B
MD5f3b25701fe362ec84616a93a45ce9998
SHA1d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA256b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
SHA51298c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
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Filesize
151B
MD5263c5b122ffbfd72783b8c7071762468
SHA18aaf7003a6254899632eee6ece4eee4b9437d110
SHA256408968f9369b68b6ed6e99c6a0996a38ef787c01a2009b8d2857d89001760a8c
SHA5124254d18bc70cfbac3ed0f4b18799211bb7786bcc68b5f84d996edd0ead9e9fc3c2deec62d83bddf3fad8219e25f41d30ec225ddb64c1c40007afe542b3cec5f9
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Filesize
908KB
MD51b8e229e83f21a946115606f54fe6b8d
SHA1cf230bc4206a1789858160a0f2d3a87ed14c36a9
SHA2565311d825c3975765c9a9a56f7c28f98b6f92c90b21a2a5ecd1bbbb0aabd82070
SHA5121f9911b01d8e3e177badb698819c06c490e3e376e23f40f99b995633e8b033427f2d5120c88d4f373a6fc3bb6e3ba5bbf526d6fa81097a188bf6f963e40bb0d1