remcos | 495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

General

Target

SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
Size

1.7MB
MD5

56626bf21f8de8d051d744973cb2566c
SHA1

af13b7b6844342fd2b2784bb01df9a780be5acbe
SHA256

495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859
SHA512

694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

Score

10^/10

remcos persistence rat

Malware Config

Extracted

Family

remcos

C2

wedsazxcvfghyuiokjhbnvfcdsaweyplmhbvrtud.ydns.eu:1996

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

3660 win.exe
2220 win.exe

pid	process
3660	win.exe
2220	win.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exewin.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\	win.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	win.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 25 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exewin.exe

pid	process
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
3660	win.exe
3660	win.exe
3660	win.exe
3660	win.exe
3660	win.exe
3660	win.exe
3660	win.exe
3660	win.exe
3660	win.exe
3660	win.exe
3660	win.exe
3660	win.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exewin.exe

description	pid	process	target process
PID 856 set thread context of 200	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
PID 3660 set thread context of 2220	3660	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
Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid pid_target process target process

808 856 WerFault.exe SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
412 3660 WerFault.exe win.exe
Delays execution with timeout.exe 2 IoCs
evasion

Processes:

timeout.exetimeout.exe

pid process

2808 timeout.exe
3208 timeout.exe

pid	pid_target	process	target process
808	856	WerFault.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
412	3660	WerFault.exe	win.exe

pid	process
2808	timeout.exe
3208	timeout.exe

Modifies registry class 1 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\Local Settings	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe

Suspicious behavior: EnumeratesProcesses 35 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exeWerFault.exewin.exeWerFault.exe

pid	process
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
808	WerFault.exe
3660	win.exe
3660	win.exe
3660	win.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe
412	WerFault.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

win.exe

pid process

2220 win.exe

pid	process
2220	win.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exeWerFault.exewin.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
Token: SeRestorePrivilege	808	WerFault.exe
Token: SeBackupPrivilege	808	WerFault.exe
Token: SeDebugPrivilege	808	WerFault.exe
Token: SeDebugPrivilege	3660	win.exe
Token: SeDebugPrivilege	412	WerFault.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

win.exe

pid process

2220 win.exe

pid	process
2220	win.exe

Suspicious use of WriteProcessMemory 41 IoCs

Processes:

SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.execmd.exeSecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exeWScript.execmd.exewin.execmd.exe

description	pid	process	target process
PID 856 wrote to memory of 588	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	cmd.exe
PID 856 wrote to memory of 588	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	cmd.exe
PID 856 wrote to memory of 588	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	cmd.exe
PID 588 wrote to memory of 2808	588	cmd.exe	timeout.exe
PID 588 wrote to memory of 2808	588	cmd.exe	timeout.exe
PID 588 wrote to memory of 2808	588	cmd.exe	timeout.exe
PID 856 wrote to memory of 200	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
PID 856 wrote to memory of 200	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
PID 856 wrote to memory of 200	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
PID 856 wrote to memory of 200	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
PID 856 wrote to memory of 200	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
PID 856 wrote to memory of 200	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
PID 856 wrote to memory of 200	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
PID 856 wrote to memory of 200	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
PID 856 wrote to memory of 200	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
PID 856 wrote to memory of 200	856	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
PID 200 wrote to memory of 2036	200	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	WScript.exe
PID 200 wrote to memory of 2036	200	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	WScript.exe
PID 200 wrote to memory of 2036	200	SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe	WScript.exe
PID 2036 wrote to memory of 1296	2036	WScript.exe	cmd.exe
PID 2036 wrote to memory of 1296	2036	WScript.exe	cmd.exe
PID 2036 wrote to memory of 1296	2036	WScript.exe	cmd.exe
PID 1296 wrote to memory of 3660	1296	cmd.exe	win.exe
PID 1296 wrote to memory of 3660	1296	cmd.exe	win.exe
PID 1296 wrote to memory of 3660	1296	cmd.exe	win.exe
PID 3660 wrote to memory of 4068	3660	win.exe	cmd.exe
PID 3660 wrote to memory of 4068	3660	win.exe	cmd.exe
PID 3660 wrote to memory of 4068	3660	win.exe	cmd.exe
PID 4068 wrote to memory of 3208	4068	cmd.exe	timeout.exe
PID 4068 wrote to memory of 3208	4068	cmd.exe	timeout.exe
PID 4068 wrote to memory of 3208	4068	cmd.exe	timeout.exe
PID 3660 wrote to memory of 2220	3660	win.exe	win.exe
PID 3660 wrote to memory of 2220	3660	win.exe	win.exe
PID 3660 wrote to memory of 2220	3660	win.exe	win.exe
PID 3660 wrote to memory of 2220	3660	win.exe	win.exe
PID 3660 wrote to memory of 2220	3660	win.exe	win.exe
PID 3660 wrote to memory of 2220	3660	win.exe	win.exe
PID 3660 wrote to memory of 2220	3660	win.exe	win.exe
PID 3660 wrote to memory of 2220	3660	win.exe	win.exe
PID 3660 wrote to memory of 2220	3660	win.exe	win.exe
PID 3660 wrote to memory of 2220	3660	win.exe	win.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:856

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:588

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:2808

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.PackedNET.703.13913.18290.exe"
2⤵
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:200

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:2036

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\win.exe"
4⤵
- Suspicious use of WriteProcessMemory
PID:1296

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:3660

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
6⤵
- Suspicious use of WriteProcessMemory
PID:4068

C:\Windows\SysWOW64\timeout.exe
timeout 1
7⤵
- Delays execution with timeout.exe
PID:3208

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 behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3660 -s 1492
6⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 1524
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:808

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

Loading Replay Monitor...

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
56626bf21f8de8d051d744973cb2566c

SHA1
af13b7b6844342fd2b2784bb01df9a780be5acbe

SHA256
495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

SHA512
694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
56626bf21f8de8d051d744973cb2566c

SHA1
af13b7b6844342fd2b2784bb01df9a780be5acbe

SHA256
495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

SHA512
694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
56626bf21f8de8d051d744973cb2566c

SHA1
af13b7b6844342fd2b2784bb01df9a780be5acbe

SHA256
495e8980ae0b6b1c68d472e9ef3cdb5eb888f8d0be94309acaa35b20536ee859

SHA512
694b761b600301fbd0d87e725903686461dc008c9372776ab01600456581ffb18f875ce84037afca2dff244830b9a72f6a562e6e463d7001794b5daf941f4925

Download Submit
memory/200-124-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/200-127-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/200-125-0x0000000000413FA4-mapping.dmp

Download
memory/588-122-0x0000000000000000-mapping.dmp

Download
memory/856-121-0x00000000058A0000-0x00000000058A1000-memory.dmp

Filesize
4KB

Download
memory/856-114-0x0000000000DB0000-0x0000000000DB1000-memory.dmp

Filesize
4KB

Download
memory/856-120-0x0000000005380000-0x0000000005381000-memory.dmp

Filesize
4KB

Download
memory/856-119-0x0000000005390000-0x00000000053CD000-memory.dmp

Filesize
244KB

Download
memory/856-118-0x00000000059E0000-0x00000000059E1000-memory.dmp

Filesize
4KB

Download
memory/856-117-0x0000000005940000-0x0000000005941000-memory.dmp

Filesize
4KB

Download
memory/856-116-0x0000000005DA0000-0x0000000005DA1000-memory.dmp

Filesize
4KB

Download
memory/1296-129-0x0000000000000000-mapping.dmp

Download
memory/2036-126-0x0000000000000000-mapping.dmp

Download
memory/2220-144-0x0000000000413FA4-mapping.dmp

Download
memory/2220-146-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2808-123-0x0000000000000000-mapping.dmp

Download
memory/3208-142-0x0000000000000000-mapping.dmp

Download
memory/3660-130-0x0000000000000000-mapping.dmp

Download
memory/3660-139-0x0000000005870000-0x0000000005D6E000-memory.dmp

Filesize
5.0MB

Download
memory/4068-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads