Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240704-en - resource tags
- submitted
05/07/2024, 12:13
General
- Target b8e01564b3cb1cbef42d0622112d53bcff11b3ae25baf684c1953f0a1c9c9221.exe
- Size 4.7MB
- Sample240705-pdt67ayall
- SHA256 b8e01564b3cb1cbef42d0622112d53bcff11b3ae25baf684c1953f0a1c9c9221
Malware Config
Extracted
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remcos
-
2.5.0 Pro
-
giga10
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CEDSXoissLv2NiM.club:5762
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PgqduOYXVZeNNam.xyz:5762
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USd7O88wEMlUtX5.xyz:5762
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pMfiryhhkiN98Px.xyz:5762
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Se2Qwz60L2OxZNM.xyz:5762
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GWtY0fiG58DCq6F.xyz:5762
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maui16azsncpo97.info:5762
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mj99puoba6c3gun.info:5762
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tu90to3b4q4uqze.info:5762
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cwt1u0vv8ic357ov.info:5762
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agaoajz1hrvevre.info:5762
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poykoqnl7jkj632.info:5762
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cbiq1neygyp1wno.info:5762
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BCBNcQ393Z3HPLQ.club:5762
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audio_folder
MicRecords
-
audio_path
%AppData%
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
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copy_file
remcos.exe
-
copy_folder
remcos
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delete_file
false
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hide_file
false
-
hide_keylog_file
false
-
install_flag
false
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install_path
%AppData%
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keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
keylog_path
%AppData%
-
mouse_option
false
-
mutex
Remcos-UQ8E24
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
-
screenshot_time
10
-
startup_value
remcos
-
take_screenshot_option
false
-
take_screenshot_time
5
-
take_screenshot_title
wikipedia;solitaire;
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\b8e01564b3cb1cbef42d0622112d53bcff11b3ae25baf684c1953f0a1c9c9221.exe"C:\Users\Admin\AppData\Local\Temp\b8e01564b3cb1cbef42d0622112d53bcff11b3ae25baf684c1953f0a1c9c9221.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YrztqVJUmKh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB006.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"2⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
tmpB006.tmp
memory/3096-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp
memory/3096-1-0x0000000000250000-0x0000000000710000-memory.dmp
memory/3096-2-0x0000000005600000-0x0000000005BA4000-memory.dmp
memory/3096-3-0x0000000005130000-0x00000000051C2000-memory.dmp
memory/3096-4-0x0000000005230000-0x0000000005286000-memory.dmp
memory/3096-5-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/3096-6-0x00000000051E0000-0x00000000051EA000-memory.dmp
memory/3096-7-0x0000000005490000-0x00000000054A0000-memory.dmp
memory/3096-8-0x0000000006820000-0x0000000006B74000-memory.dmp
memory/3096-9-0x0000000006BA0000-0x0000000006BB2000-memory.dmp
memory/3096-10-0x0000000006C30000-0x0000000006C5E000-memory.dmp
memory/3096-11-0x0000000006D00000-0x0000000006D9C000-memory.dmp
memory/3096-25-0x0000000074C40000-0x00000000753F0000-memory.dmp
memory/4680-17-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-20-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-21-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-22-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-23-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-24-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-26-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-27-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-28-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-29-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-30-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-31-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-32-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-33-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-34-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-35-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-36-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-38-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-39-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-40-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-41-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-42-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-43-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-44-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-45-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-46-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-47-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-48-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-49-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-50-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-51-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-52-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-55-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-56-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-57-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-58-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-59-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-60-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-61-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-62-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4680-63-0x0000000000400000-0x0000000000420000-memory.dmp