remcos | ebb89d7d2ba96d368ef3e3f296ba7ff2e591489e7726a0613c89764b7f654390

General

Target

9583a703274b68a2fb524598b40a87ac.exe
Size

1.8MB
MD5

9583a703274b68a2fb524598b40a87ac
SHA1

ffe41851b9820e5bfd7aad7dadcaf8d4822ba5f1
SHA256

ebb89d7d2ba96d368ef3e3f296ba7ff2e591489e7726a0613c89764b7f654390
SHA512

428550ecc7e4e86d761f662972ac6e67af5f02183d6e762e10e686ce316337f97a43cc44cb32ff42c9296f7e382f8a3fedb28687af224593eab7cbadec2135e6

Score

10^/10

remcos persistence rat

Malware Config

Extracted

Family

remcos

C2

gsyagvxnzmkoplbhduisbagtevcnxmzlopljdgye.ydns.eu:2177

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 2 IoCs

Processes:

win.exewin.exe

pid process

1520 win.exe
1720 win.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

616 cmd.exe

pid	process
1520	win.exe
1720	win.exe

pid	process
616	cmd.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

9583a703274b68a2fb524598b40a87ac.exewin.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\	9583a703274b68a2fb524598b40a87ac.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	9583a703274b68a2fb524598b40a87ac.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\	win.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	win.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 21 IoCs

Processes:

9583a703274b68a2fb524598b40a87ac.exewin.exe

pid	process
1748	9583a703274b68a2fb524598b40a87ac.exe
1748	9583a703274b68a2fb524598b40a87ac.exe
1748	9583a703274b68a2fb524598b40a87ac.exe
1748	9583a703274b68a2fb524598b40a87ac.exe
1748	9583a703274b68a2fb524598b40a87ac.exe
1748	9583a703274b68a2fb524598b40a87ac.exe
1748	9583a703274b68a2fb524598b40a87ac.exe
1748	9583a703274b68a2fb524598b40a87ac.exe
1748	9583a703274b68a2fb524598b40a87ac.exe
1748	9583a703274b68a2fb524598b40a87ac.exe
1520	win.exe
1520	win.exe
1520	win.exe
1520	win.exe
1520	win.exe
1520	win.exe
1520	win.exe
1520	win.exe
1520	win.exe
1520	win.exe
1520	win.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

9583a703274b68a2fb524598b40a87ac.exewin.exe

description	pid	process	target process
PID 1748 set thread context of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1520 set thread context of 1720	1520	win.exe	win.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Delays execution with timeout.exe 2 IoCs
evasion

Processes:

timeout.exetimeout.exe

pid process

1980 timeout.exe
564 timeout.exe

pid	process
1980	timeout.exe
564	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

9583a703274b68a2fb524598b40a87ac.exewin.exe

pid	process
1748	9583a703274b68a2fb524598b40a87ac.exe
1748	9583a703274b68a2fb524598b40a87ac.exe
1748	9583a703274b68a2fb524598b40a87ac.exe
1520	win.exe
1520	win.exe
1520	win.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

9583a703274b68a2fb524598b40a87ac.exewin.exe

description pid process

Token: SeDebugPrivilege 1748 9583a703274b68a2fb524598b40a87ac.exe
Token: SeDebugPrivilege 1520 win.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

win.exe

pid process

1720 win.exe

description	pid	process
Token: SeDebugPrivilege	1748	9583a703274b68a2fb524598b40a87ac.exe
Token: SeDebugPrivilege	1520	win.exe

pid	process
1720	win.exe

Suspicious use of WriteProcessMemory 50 IoCs

Processes:

9583a703274b68a2fb524598b40a87ac.execmd.exe9583a703274b68a2fb524598b40a87ac.exeWScript.execmd.exewin.execmd.exe

description	pid	process	target process
PID 1748 wrote to memory of 1388	1748	9583a703274b68a2fb524598b40a87ac.exe	cmd.exe
PID 1748 wrote to memory of 1388	1748	9583a703274b68a2fb524598b40a87ac.exe	cmd.exe
PID 1748 wrote to memory of 1388	1748	9583a703274b68a2fb524598b40a87ac.exe	cmd.exe
PID 1748 wrote to memory of 1388	1748	9583a703274b68a2fb524598b40a87ac.exe	cmd.exe
PID 1388 wrote to memory of 1980	1388	cmd.exe	timeout.exe
PID 1388 wrote to memory of 1980	1388	cmd.exe	timeout.exe
PID 1388 wrote to memory of 1980	1388	cmd.exe	timeout.exe
PID 1388 wrote to memory of 1980	1388	cmd.exe	timeout.exe
PID 1748 wrote to memory of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1748 wrote to memory of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1748 wrote to memory of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1748 wrote to memory of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1748 wrote to memory of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1748 wrote to memory of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1748 wrote to memory of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1748 wrote to memory of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1748 wrote to memory of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1748 wrote to memory of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1748 wrote to memory of 1336	1748	9583a703274b68a2fb524598b40a87ac.exe	9583a703274b68a2fb524598b40a87ac.exe
PID 1336 wrote to memory of 1716	1336	9583a703274b68a2fb524598b40a87ac.exe	WScript.exe
PID 1336 wrote to memory of 1716	1336	9583a703274b68a2fb524598b40a87ac.exe	WScript.exe
PID 1336 wrote to memory of 1716	1336	9583a703274b68a2fb524598b40a87ac.exe	WScript.exe
PID 1336 wrote to memory of 1716	1336	9583a703274b68a2fb524598b40a87ac.exe	WScript.exe
PID 1716 wrote to memory of 616	1716	WScript.exe	cmd.exe
PID 1716 wrote to memory of 616	1716	WScript.exe	cmd.exe
PID 1716 wrote to memory of 616	1716	WScript.exe	cmd.exe
PID 1716 wrote to memory of 616	1716	WScript.exe	cmd.exe
PID 616 wrote to memory of 1520	616	cmd.exe	win.exe
PID 616 wrote to memory of 1520	616	cmd.exe	win.exe
PID 616 wrote to memory of 1520	616	cmd.exe	win.exe
PID 616 wrote to memory of 1520	616	cmd.exe	win.exe
PID 1520 wrote to memory of 436	1520	win.exe	cmd.exe
PID 1520 wrote to memory of 436	1520	win.exe	cmd.exe
PID 1520 wrote to memory of 436	1520	win.exe	cmd.exe
PID 1520 wrote to memory of 436	1520	win.exe	cmd.exe
PID 436 wrote to memory of 564	436	cmd.exe	timeout.exe
PID 436 wrote to memory of 564	436	cmd.exe	timeout.exe
PID 436 wrote to memory of 564	436	cmd.exe	timeout.exe
PID 436 wrote to memory of 564	436	cmd.exe	timeout.exe
PID 1520 wrote to memory of 1720	1520	win.exe	win.exe
PID 1520 wrote to memory of 1720	1520	win.exe	win.exe
PID 1520 wrote to memory of 1720	1520	win.exe	win.exe
PID 1520 wrote to memory of 1720	1520	win.exe	win.exe
PID 1520 wrote to memory of 1720	1520	win.exe	win.exe
PID 1520 wrote to memory of 1720	1520	win.exe	win.exe
PID 1520 wrote to memory of 1720	1520	win.exe	win.exe
PID 1520 wrote to memory of 1720	1520	win.exe	win.exe
PID 1520 wrote to memory of 1720	1520	win.exe	win.exe
PID 1520 wrote to memory of 1720	1520	win.exe	win.exe
PID 1520 wrote to memory of 1720	1520	win.exe	win.exe

C:\Users\Admin\AppData\Local\Temp\9583a703274b68a2fb524598b40a87ac.exe
"C:\Users\Admin\AppData\Local\Temp\9583a703274b68a2fb524598b40a87ac.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1748

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:1388

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:1980

C:\Users\Admin\AppData\Local\Temp\9583a703274b68a2fb524598b40a87ac.exe
"C:\Users\Admin\AppData\Local\Temp\9583a703274b68a2fb524598b40a87ac.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1336

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:1716

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\win.exe"
4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:616

C:\Users\Admin\AppData\Roaming\win.exe
C:\Users\Admin\AppData\Roaming\win.exe
5⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1520

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
6⤵
- Suspicious use of WriteProcessMemory
PID:436

C:\Windows\SysWOW64\timeout.exe
timeout 1
7⤵
- Delays execution with timeout.exe
PID:564

C:\Users\Admin\AppData\Roaming\win.exe
"C:\Users\Admin\AppData\Roaming\win.exe"
6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:1720

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\install.vbs
MD5
4a74e626596d6e66b4bbc59ee6848f2d

SHA1
047849ac8735ecc0943428c7cd5e00b52eee06ed

SHA256
98bd6dc219a7a3e04d3d67bbec9f0b4d4640831a3a6be0a0078b050041088b0e

SHA512
1cd943482d0f1ce2ffaf6ee4a82895e4d57c52051bb14bbda0548cf072b4c5cbe719d2cdb549b5ae7c0241dd9c68dd9d1674acd26aed684b8145500079cc5403

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
9583a703274b68a2fb524598b40a87ac

SHA1
ffe41851b9820e5bfd7aad7dadcaf8d4822ba5f1

SHA256
ebb89d7d2ba96d368ef3e3f296ba7ff2e591489e7726a0613c89764b7f654390

SHA512
428550ecc7e4e86d761f662972ac6e67af5f02183d6e762e10e686ce316337f97a43cc44cb32ff42c9296f7e382f8a3fedb28687af224593eab7cbadec2135e6

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
9583a703274b68a2fb524598b40a87ac

SHA1
ffe41851b9820e5bfd7aad7dadcaf8d4822ba5f1

SHA256
ebb89d7d2ba96d368ef3e3f296ba7ff2e591489e7726a0613c89764b7f654390

SHA512
428550ecc7e4e86d761f662972ac6e67af5f02183d6e762e10e686ce316337f97a43cc44cb32ff42c9296f7e382f8a3fedb28687af224593eab7cbadec2135e6

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
9583a703274b68a2fb524598b40a87ac

SHA1
ffe41851b9820e5bfd7aad7dadcaf8d4822ba5f1

SHA256
ebb89d7d2ba96d368ef3e3f296ba7ff2e591489e7726a0613c89764b7f654390

SHA512
428550ecc7e4e86d761f662972ac6e67af5f02183d6e762e10e686ce316337f97a43cc44cb32ff42c9296f7e382f8a3fedb28687af224593eab7cbadec2135e6

Download Submit
\Users\Admin\AppData\Roaming\win.exe
MD5
9583a703274b68a2fb524598b40a87ac

SHA1
ffe41851b9820e5bfd7aad7dadcaf8d4822ba5f1

SHA256
ebb89d7d2ba96d368ef3e3f296ba7ff2e591489e7726a0613c89764b7f654390

SHA512
428550ecc7e4e86d761f662972ac6e67af5f02183d6e762e10e686ce316337f97a43cc44cb32ff42c9296f7e382f8a3fedb28687af224593eab7cbadec2135e6

Download Submit
memory/436-81-0x0000000000000000-mapping.dmp

Download
memory/564-83-0x0000000000000000-mapping.dmp

Download
memory/616-73-0x0000000000000000-mapping.dmp

Download
memory/1336-66-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1336-70-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1336-68-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/1336-67-0x0000000000413FA4-mapping.dmp

Download
memory/1388-64-0x0000000000000000-mapping.dmp

Download
memory/1520-76-0x0000000000000000-mapping.dmp

Download
memory/1520-78-0x0000000000D90000-0x0000000000D91000-memory.dmp

Filesize
4KB

Download
memory/1520-82-0x0000000005FF0000-0x0000000005FF1000-memory.dmp

Filesize
4KB

Download
memory/1716-69-0x0000000000000000-mapping.dmp

Download
memory/1720-85-0x0000000000413FA4-mapping.dmp

Download
memory/1720-88-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1748-60-0x0000000000810000-0x0000000000811000-memory.dmp

Filesize
4KB

Download
memory/1748-63-0x00000000061F0000-0x00000000061F1000-memory.dmp

Filesize
4KB

Download
memory/1748-62-0x00000000005C0000-0x0000000000601000-memory.dmp

Filesize
260KB

Download
memory/1980-65-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads