remcos | e7b8c782d225ac304d03ac431fe7665f365612d7230e6ec703c85682b52d3acf

General

Target

a609c68b93e5d6a6c73108744c1288fb.exe
Size

1.3MB
MD5

a609c68b93e5d6a6c73108744c1288fb
SHA1

3a28c194896fcd7281342d5d15c7b9c4c903b8fa
SHA256

e7b8c782d225ac304d03ac431fe7665f365612d7230e6ec703c85682b52d3acf
SHA512

eaed74930ecf17d7a20ad81c424e17644724b52abf630882e5f654863afdbe8d3a68f5718b431005de3f9162071f1005c5d7727e00dc821d34dcb98a8f58cdac

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

1528 win.exe
592 win.exe
Loads dropped DLL 2 IoCs

Processes:

cmd.exe

pid process

1612 cmd.exe
1612 cmd.exe

pid	process
1528	win.exe
592	win.exe

pid	process
1612	cmd.exe
1612	cmd.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a609c68b93e5d6a6c73108744c1288fb.exewin.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\	a609c68b93e5d6a6c73108744c1288fb.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	a609c68b93e5d6a6c73108744c1288fb.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\	win.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\win = "\"C:\\Users\\Admin\\AppData\\Roaming\\win.exe\""	win.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 15 IoCs

Processes:

a609c68b93e5d6a6c73108744c1288fb.exewin.exe

pid	process
912	a609c68b93e5d6a6c73108744c1288fb.exe
912	a609c68b93e5d6a6c73108744c1288fb.exe
912	a609c68b93e5d6a6c73108744c1288fb.exe
912	a609c68b93e5d6a6c73108744c1288fb.exe
912	a609c68b93e5d6a6c73108744c1288fb.exe
912	a609c68b93e5d6a6c73108744c1288fb.exe
912	a609c68b93e5d6a6c73108744c1288fb.exe
1528	win.exe
1528	win.exe
1528	win.exe
1528	win.exe
1528	win.exe
1528	win.exe
1528	win.exe
1528	win.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

a609c68b93e5d6a6c73108744c1288fb.exewin.exe

description	pid	process	target process
PID 912 set thread context of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 1528 set thread context of 592	1528	win.exe	win.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

616 912 WerFault.exe a609c68b93e5d6a6c73108744c1288fb.exe
Delays execution with timeout.exe 6 IoCs
evasion

Processes:

timeout.exetimeout.exetimeout.exetimeout.exetimeout.exetimeout.exe

pid process

1576 timeout.exe
772 timeout.exe
1408 timeout.exe
1516 timeout.exe
1616 timeout.exe
1892 timeout.exe

pid	pid_target	process	target process
616	912	WerFault.exe	a609c68b93e5d6a6c73108744c1288fb.exe

pid	process
1576	timeout.exe
772	timeout.exe
1408	timeout.exe
1516	timeout.exe
1616	timeout.exe
1892	timeout.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

a609c68b93e5d6a6c73108744c1288fb.exeWerFault.exewin.exe

pid	process
912	a609c68b93e5d6a6c73108744c1288fb.exe
912	a609c68b93e5d6a6c73108744c1288fb.exe
912	a609c68b93e5d6a6c73108744c1288fb.exe
616	WerFault.exe
616	WerFault.exe
616	WerFault.exe
616	WerFault.exe
616	WerFault.exe
1528	win.exe
1528	win.exe
1528	win.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

a609c68b93e5d6a6c73108744c1288fb.exeWerFault.exewin.exe

description	pid	process
Token: SeDebugPrivilege	912	a609c68b93e5d6a6c73108744c1288fb.exe
Token: SeDebugPrivilege	616	WerFault.exe
Token: SeDebugPrivilege	1528	win.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

win.exe

pid process

592 win.exe

pid	process
592	win.exe

Suspicious use of WriteProcessMemory 86 IoCs

Processes:

a609c68b93e5d6a6c73108744c1288fb.execmd.execmd.execmd.exea609c68b93e5d6a6c73108744c1288fb.exeWScript.execmd.exewin.execmd.execmd.exe

description	pid	process	target process
PID 912 wrote to memory of 1980	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 912 wrote to memory of 1980	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 912 wrote to memory of 1980	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 912 wrote to memory of 1980	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 1980 wrote to memory of 1892	1980	cmd.exe	timeout.exe
PID 1980 wrote to memory of 1892	1980	cmd.exe	timeout.exe
PID 1980 wrote to memory of 1892	1980	cmd.exe	timeout.exe
PID 1980 wrote to memory of 1892	1980	cmd.exe	timeout.exe
PID 912 wrote to memory of 1536	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 912 wrote to memory of 1536	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 912 wrote to memory of 1536	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 912 wrote to memory of 1536	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 1536 wrote to memory of 1576	1536	cmd.exe	timeout.exe
PID 1536 wrote to memory of 1576	1536	cmd.exe	timeout.exe
PID 1536 wrote to memory of 1576	1536	cmd.exe	timeout.exe
PID 1536 wrote to memory of 1576	1536	cmd.exe	timeout.exe
PID 912 wrote to memory of 572	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 912 wrote to memory of 572	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 912 wrote to memory of 572	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 912 wrote to memory of 572	912	a609c68b93e5d6a6c73108744c1288fb.exe	cmd.exe
PID 572 wrote to memory of 772	572	cmd.exe	timeout.exe
PID 572 wrote to memory of 772	572	cmd.exe	timeout.exe
PID 572 wrote to memory of 772	572	cmd.exe	timeout.exe
PID 572 wrote to memory of 772	572	cmd.exe	timeout.exe
PID 912 wrote to memory of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 912 wrote to memory of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 912 wrote to memory of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 912 wrote to memory of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 912 wrote to memory of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 912 wrote to memory of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 912 wrote to memory of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 912 wrote to memory of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 912 wrote to memory of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 912 wrote to memory of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 912 wrote to memory of 2036	912	a609c68b93e5d6a6c73108744c1288fb.exe	a609c68b93e5d6a6c73108744c1288fb.exe
PID 912 wrote to memory of 616	912	a609c68b93e5d6a6c73108744c1288fb.exe	WerFault.exe
PID 912 wrote to memory of 616	912	a609c68b93e5d6a6c73108744c1288fb.exe	WerFault.exe
PID 912 wrote to memory of 616	912	a609c68b93e5d6a6c73108744c1288fb.exe	WerFault.exe
PID 912 wrote to memory of 616	912	a609c68b93e5d6a6c73108744c1288fb.exe	WerFault.exe
PID 2036 wrote to memory of 1416	2036	a609c68b93e5d6a6c73108744c1288fb.exe	WScript.exe
PID 2036 wrote to memory of 1416	2036	a609c68b93e5d6a6c73108744c1288fb.exe	WScript.exe
PID 2036 wrote to memory of 1416	2036	a609c68b93e5d6a6c73108744c1288fb.exe	WScript.exe
PID 2036 wrote to memory of 1416	2036	a609c68b93e5d6a6c73108744c1288fb.exe	WScript.exe
PID 1416 wrote to memory of 1612	1416	WScript.exe	cmd.exe
PID 1416 wrote to memory of 1612	1416	WScript.exe	cmd.exe
PID 1416 wrote to memory of 1612	1416	WScript.exe	cmd.exe
PID 1416 wrote to memory of 1612	1416	WScript.exe	cmd.exe
PID 1612 wrote to memory of 1528	1612	cmd.exe	win.exe
PID 1612 wrote to memory of 1528	1612	cmd.exe	win.exe
PID 1612 wrote to memory of 1528	1612	cmd.exe	win.exe
PID 1612 wrote to memory of 1528	1612	cmd.exe	win.exe
PID 1528 wrote to memory of 1776	1528	win.exe	cmd.exe
PID 1528 wrote to memory of 1776	1528	win.exe	cmd.exe
PID 1528 wrote to memory of 1776	1528	win.exe	cmd.exe
PID 1528 wrote to memory of 1776	1528	win.exe	cmd.exe
PID 1776 wrote to memory of 1408	1776	cmd.exe	timeout.exe
PID 1776 wrote to memory of 1408	1776	cmd.exe	timeout.exe
PID 1776 wrote to memory of 1408	1776	cmd.exe	timeout.exe
PID 1776 wrote to memory of 1408	1776	cmd.exe	timeout.exe
PID 1528 wrote to memory of 1296	1528	win.exe	cmd.exe
PID 1528 wrote to memory of 1296	1528	win.exe	cmd.exe
PID 1528 wrote to memory of 1296	1528	win.exe	cmd.exe
PID 1528 wrote to memory of 1296	1528	win.exe	cmd.exe
PID 1296 wrote to memory of 1516	1296	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\a609c68b93e5d6a6c73108744c1288fb.exe
"C:\Users\Admin\AppData\Local\Temp\a609c68b93e5d6a6c73108744c1288fb.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:912

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:1980

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:1892

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:1536

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:1576

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:572

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:772

C:\Users\Admin\AppData\Local\Temp\a609c68b93e5d6a6c73108744c1288fb.exe
"C:\Users\Admin\AppData\Local\Temp\a609c68b93e5d6a6c73108744c1288fb.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2036

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:1416

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:1612

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:1528

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
6⤵
- Suspicious use of WriteProcessMemory
PID:1776

C:\Windows\SysWOW64\timeout.exe
timeout 1
7⤵
- Delays execution with timeout.exe
PID:1408

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
6⤵
- Suspicious use of WriteProcessMemory
PID:1296

C:\Windows\SysWOW64\timeout.exe
timeout 1
7⤵
- Delays execution with timeout.exe
PID:1516

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
6⤵
PID:700

C:\Windows\SysWOW64\timeout.exe
timeout 1
7⤵
- Delays execution with timeout.exe
PID:1616

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:592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 912 -s 948
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:616

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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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
a609c68b93e5d6a6c73108744c1288fb

SHA1
3a28c194896fcd7281342d5d15c7b9c4c903b8fa

SHA256
e7b8c782d225ac304d03ac431fe7665f365612d7230e6ec703c85682b52d3acf

SHA512
eaed74930ecf17d7a20ad81c424e17644724b52abf630882e5f654863afdbe8d3a68f5718b431005de3f9162071f1005c5d7727e00dc821d34dcb98a8f58cdac

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
a609c68b93e5d6a6c73108744c1288fb

SHA1
3a28c194896fcd7281342d5d15c7b9c4c903b8fa

SHA256
e7b8c782d225ac304d03ac431fe7665f365612d7230e6ec703c85682b52d3acf

SHA512
eaed74930ecf17d7a20ad81c424e17644724b52abf630882e5f654863afdbe8d3a68f5718b431005de3f9162071f1005c5d7727e00dc821d34dcb98a8f58cdac

Download Submit
C:\Users\Admin\AppData\Roaming\win.exe
MD5
a609c68b93e5d6a6c73108744c1288fb

SHA1
3a28c194896fcd7281342d5d15c7b9c4c903b8fa

SHA256
e7b8c782d225ac304d03ac431fe7665f365612d7230e6ec703c85682b52d3acf

SHA512
eaed74930ecf17d7a20ad81c424e17644724b52abf630882e5f654863afdbe8d3a68f5718b431005de3f9162071f1005c5d7727e00dc821d34dcb98a8f58cdac

Download Submit
\Users\Admin\AppData\Roaming\win.exe
MD5
a609c68b93e5d6a6c73108744c1288fb

SHA1
3a28c194896fcd7281342d5d15c7b9c4c903b8fa

SHA256
e7b8c782d225ac304d03ac431fe7665f365612d7230e6ec703c85682b52d3acf

SHA512
eaed74930ecf17d7a20ad81c424e17644724b52abf630882e5f654863afdbe8d3a68f5718b431005de3f9162071f1005c5d7727e00dc821d34dcb98a8f58cdac

Download Submit
\Users\Admin\AppData\Roaming\win.exe
MD5
a609c68b93e5d6a6c73108744c1288fb

SHA1
3a28c194896fcd7281342d5d15c7b9c4c903b8fa

SHA256
e7b8c782d225ac304d03ac431fe7665f365612d7230e6ec703c85682b52d3acf

SHA512
eaed74930ecf17d7a20ad81c424e17644724b52abf630882e5f654863afdbe8d3a68f5718b431005de3f9162071f1005c5d7727e00dc821d34dcb98a8f58cdac

Download Submit
memory/572-11-0x0000000000000000-mapping.dmp

Download
memory/592-44-0x0000000000413FA4-mapping.dmp

Download
memory/592-47-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/616-16-0x0000000000000000-mapping.dmp

Download
memory/616-24-0x00000000005F0000-0x00000000005F1000-memory.dmp

Filesize
4KB

Download
memory/616-17-0x0000000001EF0000-0x0000000001F01000-memory.dmp

Filesize
68KB

Download
memory/700-41-0x0000000000000000-mapping.dmp

Download
memory/772-12-0x0000000000000000-mapping.dmp

Download
memory/912-3-0x0000000000F20000-0x0000000000F21000-memory.dmp

Filesize
4KB

Download
memory/912-5-0x0000000000560000-0x0000000000590000-memory.dmp

Filesize
192KB

Download
memory/912-7-0x0000000004D80000-0x0000000004D81000-memory.dmp

Filesize
4KB

Download
memory/912-2-0x00000000748D0000-0x0000000074FBE000-memory.dmp

Filesize
6.9MB

Download
memory/1296-39-0x0000000000000000-mapping.dmp

Download
memory/1408-37-0x0000000000000000-mapping.dmp

Download
memory/1416-21-0x0000000000000000-mapping.dmp

Download
memory/1416-26-0x0000000002690000-0x0000000002694000-memory.dmp

Filesize
16KB

Download
memory/1516-40-0x0000000000000000-mapping.dmp

Download
memory/1528-30-0x0000000000000000-mapping.dmp

Download
memory/1528-38-0x0000000002000000-0x0000000002001000-memory.dmp

Filesize
4KB

Download
memory/1528-32-0x00000000748D0000-0x0000000074FBE000-memory.dmp

Filesize
6.9MB

Download
memory/1528-33-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/1536-9-0x0000000000000000-mapping.dmp

Download
memory/1576-10-0x0000000000000000-mapping.dmp

Download
memory/1612-25-0x0000000000000000-mapping.dmp

Download
memory/1616-42-0x0000000000000000-mapping.dmp

Download
memory/1776-36-0x0000000000000000-mapping.dmp

Download
memory/1892-8-0x0000000000000000-mapping.dmp

Download
memory/1980-6-0x0000000000000000-mapping.dmp

Download
memory/2036-15-0x0000000076381000-0x0000000076383000-memory.dmp

Filesize
8KB

Download
memory/2036-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2036-14-0x0000000000413FA4-mapping.dmp

Download
memory/2036-20-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads