Analysis
-
max time kernel
149s -
max time network
147s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
19-01-2021 06:38
Static task
static1
Behavioral task
behavioral1
Sample
PO - 2021-000511.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
PO - 2021-000511.exe
Resource
win10v20201028
General
-
Target
PO - 2021-000511.exe
-
Size
330KB
-
MD5
66942e778b34428234e0a47a0e9c444e
-
SHA1
2bf1b967c0b9ff0c2478441a9294405afb29ec6e
-
SHA256
9d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74
-
SHA512
1bbf9595b15c0a1c0f8635c8a15161d39c5a73bf45a73f2f0fedfa80b33ed60c0bf1db738348a91b7f4ac2ac13e95bbd63d2ee65feaa01627656ba12e2e30989
Malware Config
Extracted
remcos
nkosarevaocs.duckdns.org:7266
Signatures
-
Executes dropped EXE 5 IoCs
Processes:
remcos.exeremcos.exeremcos.exeremcos.exeremcos.exepid process 3464 remcos.exe 3828 remcos.exe 3648 remcos.exe 3180 remcos.exe 3244 remcos.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
remcos.exePO - 2021-000511.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" remcos.exe Key created \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\ PO - 2021-000511.exe Set value (str) \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\"" PO - 2021-000511.exe Key created \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\ remcos.exe -
Suspicious use of SetThreadContext 5 IoCs
Processes:
PO - 2021-000511.exeremcos.exeremcos.exedescription pid process target process PID 64 set thread context of 896 64 PO - 2021-000511.exe PO - 2021-000511.exe PID 3464 set thread context of 3828 3464 remcos.exe remcos.exe PID 3828 set thread context of 3648 3828 remcos.exe remcos.exe PID 3828 set thread context of 3180 3828 remcos.exe remcos.exe PID 3828 set thread context of 3244 3828 remcos.exe remcos.exe -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Modifies registry class 1 IoCs
Processes:
PO - 2021-000511.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000_Classes\Local Settings PO - 2021-000511.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
remcos.exeremcos.exepid process 3648 remcos.exe 3648 remcos.exe 3180 remcos.exe 3180 remcos.exe 3648 remcos.exe 3648 remcos.exe -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
PO - 2021-000511.exeremcos.exepid process 64 PO - 2021-000511.exe 3464 remcos.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
remcos.exedescription pid process Token: SeDebugPrivilege 3180 remcos.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
remcos.exepid process 3828 remcos.exe -
Suspicious use of WriteProcessMemory 50 IoCs
Processes:
PO - 2021-000511.execmd.exePO - 2021-000511.exeWScript.execmd.exeremcos.exeremcos.exedescription pid process target process PID 64 wrote to memory of 804 64 PO - 2021-000511.exe cmd.exe PID 64 wrote to memory of 804 64 PO - 2021-000511.exe cmd.exe PID 64 wrote to memory of 804 64 PO - 2021-000511.exe cmd.exe PID 64 wrote to memory of 896 64 PO - 2021-000511.exe PO - 2021-000511.exe PID 64 wrote to memory of 896 64 PO - 2021-000511.exe PO - 2021-000511.exe PID 64 wrote to memory of 896 64 PO - 2021-000511.exe PO - 2021-000511.exe PID 64 wrote to memory of 896 64 PO - 2021-000511.exe PO - 2021-000511.exe PID 804 wrote to memory of 188 804 cmd.exe schtasks.exe PID 804 wrote to memory of 188 804 cmd.exe schtasks.exe PID 804 wrote to memory of 188 804 cmd.exe schtasks.exe PID 896 wrote to memory of 932 896 PO - 2021-000511.exe WScript.exe PID 896 wrote to memory of 932 896 PO - 2021-000511.exe WScript.exe PID 896 wrote to memory of 932 896 PO - 2021-000511.exe WScript.exe PID 932 wrote to memory of 1400 932 WScript.exe cmd.exe PID 932 wrote to memory of 1400 932 WScript.exe cmd.exe PID 932 wrote to memory of 1400 932 WScript.exe cmd.exe PID 1400 wrote to memory of 3464 1400 cmd.exe remcos.exe PID 1400 wrote to memory of 3464 1400 cmd.exe remcos.exe PID 1400 wrote to memory of 3464 1400 cmd.exe remcos.exe PID 3464 wrote to memory of 3828 3464 remcos.exe remcos.exe PID 3464 wrote to memory of 3828 3464 remcos.exe remcos.exe PID 3464 wrote to memory of 3828 3464 remcos.exe remcos.exe PID 3464 wrote to memory of 3828 3464 remcos.exe remcos.exe PID 3828 wrote to memory of 2240 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 2240 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 2240 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3648 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3648 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3648 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3648 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3648 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3648 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3648 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3648 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3180 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3180 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3180 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3180 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3180 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3180 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3180 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3180 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3244 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3244 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3244 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3244 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3244 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3244 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3244 3828 remcos.exe remcos.exe PID 3828 wrote to memory of 3244 3828 remcos.exe remcos.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO - 2021-000511.exe"C:\Users\Admin\AppData\Local\Temp\PO - 2021-000511.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\c2dda0561025401989fafe74650217e2.xml"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exeschtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\c2dda0561025401989fafe74650217e2.xml"3⤵
- Creates scheduled task(s)
-
C:\Users\Admin\AppData\Local\Temp\PO - 2021-000511.exe"C:\Users\Admin\AppData\Local\Temp\PO - 2021-000511.exe"2⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"4⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeC:\Users\Admin\AppData\Roaming\Remcos\remcos.exe5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeC:\Users\Admin\AppData\Roaming\Remcos\remcos.exe6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeC:\Users\Admin\AppData\Roaming\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\afpugz"7⤵
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeC:\Users\Admin\AppData\Roaming\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\afpugz"7⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeC:\Users\Admin\AppData\Roaming\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\khunhsrze"7⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeC:\Users\Admin\AppData\Roaming\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\ubzxhkcasszi"7⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\afpugzMD5
814b5ce4cad79d36055d2d4b5958cc31
SHA12a06a869615f0858479371b0415899681fb0c7d8
SHA2566d1fa1a75faec2b39e8a2a1df8dd0f15e5256de7da7c527225ecf22fdacaf559
SHA512a82fa1594ccbe1df93a973a01c787a6baa0ce8a97c0b0b0a844c90cb6be092b1094636b4d88c568fece95cd9bdfe4412875011abe318373a4fcfc218f93d1278
-
C:\Users\Admin\AppData\Local\Temp\c2dda0561025401989fafe74650217e2.xmlMD5
a36564afc14b3eb0849c01a3afdb9944
SHA14dcee9fae3fde4e46b08529bc0ba067150686f07
SHA2569d4342f763c5d62a06f69aa6fdcb1caa376ff2f2c0972f36b487f73b4d221996
SHA512782082aa36ae056734e90fc079c813dfef59420571a1b70cde4cf15eb6c870f85b2bfe0748ef4db9df3d010c08671bff744d78178ba75bf2ba02b665f044ae89
-
C:\Users\Admin\AppData\Local\Temp\install.vbsMD5
b92d64fe5b1d1f59df4b738262aea8df
SHA1c8fb1981759c2d9bb2ec91b705985fba5fc7af63
SHA256fa20e9aab03dc8e9f1910aaf0cf42662379fa16ae3a22642084fb97fa3d4f83a
SHA5122566248b93c0cfb0414f033b8dd18bbd4f88180093eac2861107289bcb4ee160f9593706ff1f7d1f2e4ecea430d67a5a2897551a4f9ebd82b707243e300520e2
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeMD5
66942e778b34428234e0a47a0e9c444e
SHA12bf1b967c0b9ff0c2478441a9294405afb29ec6e
SHA2569d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74
SHA5121bbf9595b15c0a1c0f8635c8a15161d39c5a73bf45a73f2f0fedfa80b33ed60c0bf1db738348a91b7f4ac2ac13e95bbd63d2ee65feaa01627656ba12e2e30989
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeMD5
66942e778b34428234e0a47a0e9c444e
SHA12bf1b967c0b9ff0c2478441a9294405afb29ec6e
SHA2569d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74
SHA5121bbf9595b15c0a1c0f8635c8a15161d39c5a73bf45a73f2f0fedfa80b33ed60c0bf1db738348a91b7f4ac2ac13e95bbd63d2ee65feaa01627656ba12e2e30989
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeMD5
66942e778b34428234e0a47a0e9c444e
SHA12bf1b967c0b9ff0c2478441a9294405afb29ec6e
SHA2569d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74
SHA5121bbf9595b15c0a1c0f8635c8a15161d39c5a73bf45a73f2f0fedfa80b33ed60c0bf1db738348a91b7f4ac2ac13e95bbd63d2ee65feaa01627656ba12e2e30989
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeMD5
66942e778b34428234e0a47a0e9c444e
SHA12bf1b967c0b9ff0c2478441a9294405afb29ec6e
SHA2569d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74
SHA5121bbf9595b15c0a1c0f8635c8a15161d39c5a73bf45a73f2f0fedfa80b33ed60c0bf1db738348a91b7f4ac2ac13e95bbd63d2ee65feaa01627656ba12e2e30989
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeMD5
66942e778b34428234e0a47a0e9c444e
SHA12bf1b967c0b9ff0c2478441a9294405afb29ec6e
SHA2569d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74
SHA5121bbf9595b15c0a1c0f8635c8a15161d39c5a73bf45a73f2f0fedfa80b33ed60c0bf1db738348a91b7f4ac2ac13e95bbd63d2ee65feaa01627656ba12e2e30989
-
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exeMD5
66942e778b34428234e0a47a0e9c444e
SHA12bf1b967c0b9ff0c2478441a9294405afb29ec6e
SHA2569d3eddc1a411d1749efa3f08827529ab80356d515cb5321ed5ea7cca0dedca74
SHA5121bbf9595b15c0a1c0f8635c8a15161d39c5a73bf45a73f2f0fedfa80b33ed60c0bf1db738348a91b7f4ac2ac13e95bbd63d2ee65feaa01627656ba12e2e30989
-
memory/188-4-0x0000000000000000-mapping.dmp
-
memory/804-2-0x0000000000000000-mapping.dmp
-
memory/896-8-0x0000000000400000-0x0000000000421000-memory.dmpFilesize
132KB
-
memory/896-3-0x0000000000413FA4-mapping.dmp
-
memory/932-6-0x0000000000000000-mapping.dmp
-
memory/1400-9-0x0000000000000000-mapping.dmp
-
memory/3180-20-0x0000000000422206-mapping.dmp
-
memory/3180-19-0x0000000000400000-0x0000000000424000-memory.dmpFilesize
144KB
-
memory/3180-25-0x0000000000400000-0x0000000000424000-memory.dmpFilesize
144KB
-
memory/3244-22-0x0000000000400000-0x0000000000457000-memory.dmpFilesize
348KB
-
memory/3244-23-0x0000000000455238-mapping.dmp
-
memory/3244-26-0x0000000000400000-0x0000000000457000-memory.dmpFilesize
348KB
-
memory/3464-10-0x0000000000000000-mapping.dmp
-
memory/3648-16-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
-
memory/3648-17-0x0000000000476274-mapping.dmp
-
memory/3648-27-0x0000000000400000-0x0000000000478000-memory.dmpFilesize
480KB
-
memory/3828-13-0x0000000000413FA4-mapping.dmp
-
memory/3828-15-0x0000000000400000-0x0000000000421000-memory.dmpFilesize
132KB