Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system - submitted
06/11/2024, 09:01
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
PO238109.exe
Resource
win7-20241023-en
10 signatures
150 seconds
General
- Target PO238109.exe
- Size 937KB
- Sample241106-kywtasxdjf
- SHA256 25d5929f0ef894bf532d5c21e03474a7f7db7cc0be168a2d618a40bb47de9643
- MD5 c5c9130e57bdec0048c45059f6f120f7
- SHA1 31d2982daf825709aaa92b7bf096eed3bbc851f7
- SHA512 fa48a157b58db5b697e81ab26f9857638cfede798395411051198b50faf38a6c873eb3d5671c186bb93b528178d831b8a705422bf940f74ab709ca949c6d723e
- SSDEEP 24576:6APh//PBwkPNjPKi8VDxMlEdhvyEyaE5WqtP:6S5PEVDOlgvyEQWqt
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
remcos
Botnet
-
AY101
C2
-
45.32.153.255:2017
Attributes
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-PRHVKY
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos family
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 452 powershell.exe 4556 powershell.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation PO238109.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2060 set thread context of 2464 2060 PO238109.exe 106 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PO238109.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PO238109.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3144 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 452 powershell.exe 452 powershell.exe 4556 powershell.exe 4556 powershell.exe 452 powershell.exe 4556 powershell.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 452 powershell.exe Token: SeDebugPrivilege 4556 powershell.exe - Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2060 wrote to memory of 452 2060 PO238109.exe 100 PID 2060 wrote to memory of 452 2060 PO238109.exe 100 PID 2060 wrote to memory of 452 2060 PO238109.exe 100 PID 2060 wrote to memory of 4556 2060 PO238109.exe 102 PID 2060 wrote to memory of 4556 2060 PO238109.exe 102 PID 2060 wrote to memory of 4556 2060 PO238109.exe 102 PID 2060 wrote to memory of 3144 2060 PO238109.exe 104 PID 2060 wrote to memory of 3144 2060 PO238109.exe 104 PID 2060 wrote to memory of 3144 2060 PO238109.exe 104 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106 PID 2060 wrote to memory of 2464 2060 PO238109.exe 106
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO238109.exe"C:\Users\Admin\AppData\Local\Temp\PO238109.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2060 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\PO238109.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:452
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SgOJFU.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4556
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SgOJFU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1B15.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3144
-
-
C:\Users\Admin\AppData\Local\Temp\PO238109.exe"C:\Users\Admin\AppData\Local\Temp\PO238109.exe"2⤵
- System Location Discovery: System Language Discovery
PID:2464
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 082ff5c8179db1dbccc8da84ac258f4da351bc904122facb6bc8a5a235a648d7
- MD5 bfee078c6106051b00aefb583447bd93
- SHA1 00dd939a9b1be0afe36c12a73aab1480242d5a84
- SHA512 a72c8fbded2984f9c5db2b61cd31bb73dab17fdae5e119a6cfbfaddda1ba042ae85cd4a7033b906a488121bfa8e9e5e46a29a64c3115188e3f920d13b79028f6
- SSDEEP 384:2sf+BW9i+C4kS3P+izckWo9o2TkyK6seYLME/B03SoZSfYSgojEDkSQ0gdMtkKhD:Tfi4pZ7bo2TkyNgrqSVW2ED/Cm3
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ojdgmjro.1vr.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmp1B15.tmp
- Size 1KB
- SHA256 5b3929c3b3cf85efa4b7c1c3c6254ef2427758bac23b1731c3e260a10c54b1dc
- MD5 c6246ad6b9813c334989bf3b2e15af6a
- SHA1 9a349b10d417d92c1fad70a84eba802b84ed5f29
- SHA512 0cc0c8e835515e189285dd3c91e7d70ad57b8016e23597483b3ed5d7934c106e129980a6bb4defa987d87c3efe94e5cd0f56431223974d1e51043dce58bc1b76
- MD5 SHA1 SHA512