remcos | 91a6073fee95df45b5339667b67a48859d5be0e6cf8a8150ec3f448ee101d4a2

General

Target

32ea22866d841b7d43f3213f4daa869e.exe
Size

671KB
MD5

32ea22866d841b7d43f3213f4daa869e
SHA1

6d447d17f6940d420dea93bda24d42424ef0c5b2
SHA256

91a6073fee95df45b5339667b67a48859d5be0e6cf8a8150ec3f448ee101d4a2
SHA512

077d8da7d8ecbf6c2f137ef0506aa6e3300ea46daa1d78b3d60b3384129414815d23bf950d790b0983f0cd1669ce57ec3e0866ada3dd47f3a4a1aa792bbc126f

Score

10^/10

remcos harry persistence rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Harry

C2

newremc22.ddns.net:2717

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
remcos_qvoysmnedqksues
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
bin
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title

Signatures

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

Processes:

remcos.exeremcos.exe

pid process

3688 remcos.exe
1536 remcos.exe

pid	process
3688	remcos.exe
1536	remcos.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

32ea22866d841b7d43f3213f4daa869e.exeremcos.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows\CurrentVersion\Run\	32ea22866d841b7d43f3213f4daa869e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows\CurrentVersion\Run\bin = "\"C:\\Users\\Admin\\AppData\\Roaming\\remcos\\remcos.exe\""	32ea22866d841b7d43f3213f4daa869e.exe
Key created	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows\CurrentVersion\Run\	remcos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows\CurrentVersion\Run\bin = "\"C:\\Users\\Admin\\AppData\\Roaming\\remcos\\remcos.exe\""	remcos.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

32ea22866d841b7d43f3213f4daa869e.exeremcos.exe

description	pid	process	target process
PID 2772 set thread context of 3520	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 3688 set thread context of 1536	3688	remcos.exe	remcos.exe

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

System Information Discovery
T1082
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3676 PING.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

32ea22866d841b7d43f3213f4daa869e.exe

pid process

2772 32ea22866d841b7d43f3213f4daa869e.exe
2772 32ea22866d841b7d43f3213f4daa869e.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

32ea22866d841b7d43f3213f4daa869e.exe

description pid process

Token: SeDebugPrivilege 2772 32ea22866d841b7d43f3213f4daa869e.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

remcos.exe

pid process

1536 remcos.exe

pid	process
3676	PING.EXE

pid	process
2772	32ea22866d841b7d43f3213f4daa869e.exe
2772	32ea22866d841b7d43f3213f4daa869e.exe

description	pid	process
Token: SeDebugPrivilege	2772	32ea22866d841b7d43f3213f4daa869e.exe

pid	process
1536	remcos.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

32ea22866d841b7d43f3213f4daa869e.exe32ea22866d841b7d43f3213f4daa869e.execmd.exeremcos.exe

description	pid	process	target process
PID 2772 wrote to memory of 68	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 2772 wrote to memory of 68	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 2772 wrote to memory of 68	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 2772 wrote to memory of 3520	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 2772 wrote to memory of 3520	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 2772 wrote to memory of 3520	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 2772 wrote to memory of 3520	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 2772 wrote to memory of 3520	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 2772 wrote to memory of 3520	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 2772 wrote to memory of 3520	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 2772 wrote to memory of 3520	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 2772 wrote to memory of 3520	2772	32ea22866d841b7d43f3213f4daa869e.exe	32ea22866d841b7d43f3213f4daa869e.exe
PID 3520 wrote to memory of 3312	3520	32ea22866d841b7d43f3213f4daa869e.exe	cmd.exe
PID 3520 wrote to memory of 3312	3520	32ea22866d841b7d43f3213f4daa869e.exe	cmd.exe
PID 3520 wrote to memory of 3312	3520	32ea22866d841b7d43f3213f4daa869e.exe	cmd.exe
PID 3312 wrote to memory of 3676	3312	cmd.exe	PING.EXE
PID 3312 wrote to memory of 3676	3312	cmd.exe	PING.EXE
PID 3312 wrote to memory of 3676	3312	cmd.exe	PING.EXE
PID 3312 wrote to memory of 3688	3312	cmd.exe	remcos.exe
PID 3312 wrote to memory of 3688	3312	cmd.exe	remcos.exe
PID 3312 wrote to memory of 3688	3312	cmd.exe	remcos.exe
PID 3688 wrote to memory of 1536	3688	remcos.exe	remcos.exe
PID 3688 wrote to memory of 1536	3688	remcos.exe	remcos.exe
PID 3688 wrote to memory of 1536	3688	remcos.exe	remcos.exe
PID 3688 wrote to memory of 1536	3688	remcos.exe	remcos.exe
PID 3688 wrote to memory of 1536	3688	remcos.exe	remcos.exe
PID 3688 wrote to memory of 1536	3688	remcos.exe	remcos.exe
PID 3688 wrote to memory of 1536	3688	remcos.exe	remcos.exe
PID 3688 wrote to memory of 1536	3688	remcos.exe	remcos.exe
PID 3688 wrote to memory of 1536	3688	remcos.exe	remcos.exe

C:\Users\Admin\AppData\Local\Temp\32ea22866d841b7d43f3213f4daa869e.exe
"C:\Users\Admin\AppData\Local\Temp\32ea22866d841b7d43f3213f4daa869e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2772

C:\Users\Admin\AppData\Local\Temp\32ea22866d841b7d43f3213f4daa869e.exe
"C:\Users\Admin\AppData\Local\Temp\32ea22866d841b7d43f3213f4daa869e.exe"
2⤵
PID:68

C:\Users\Admin\AppData\Local\Temp\32ea22866d841b7d43f3213f4daa869e.exe
"C:\Users\Admin\AppData\Local\Temp\32ea22866d841b7d43f3213f4daa869e.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3520

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\install.bat" "
3⤵
- Suspicious use of WriteProcessMemory
PID:3312

C:\Windows\SysWOW64\PING.EXE
PING 127.0.0.1 -n 2
4⤵
- Runs ping.exe
PID:3676

C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\remcos\remcos.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3688

C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\remcos\remcos.exe"
5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:1536

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

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\install.bat
MD5
76c1687d97dfdbcea62ef1490bec5001

SHA1
5f4d1aeafa7d840cde67b76f97416dd68efd1bed

SHA256
79f04ea049979ffd2232c459fdd57fae97a5255aea9b4a2c7dce7ead856f37a4

SHA512
da250f0628632a644f159d818a82a8b9cca8224e46843bddbe0f6f9c32a2d04f7736a620af49ab6d77616317ca7d68285e60043965fe86c03d940835bd30a925

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
MD5
32ea22866d841b7d43f3213f4daa869e

SHA1
6d447d17f6940d420dea93bda24d42424ef0c5b2

SHA256
91a6073fee95df45b5339667b67a48859d5be0e6cf8a8150ec3f448ee101d4a2

SHA512
077d8da7d8ecbf6c2f137ef0506aa6e3300ea46daa1d78b3d60b3384129414815d23bf950d790b0983f0cd1669ce57ec3e0866ada3dd47f3a4a1aa792bbc126f

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
MD5
32ea22866d841b7d43f3213f4daa869e

SHA1
6d447d17f6940d420dea93bda24d42424ef0c5b2

SHA256
91a6073fee95df45b5339667b67a48859d5be0e6cf8a8150ec3f448ee101d4a2

SHA512
077d8da7d8ecbf6c2f137ef0506aa6e3300ea46daa1d78b3d60b3384129414815d23bf950d790b0983f0cd1669ce57ec3e0866ada3dd47f3a4a1aa792bbc126f

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\remcos.exe
MD5
32ea22866d841b7d43f3213f4daa869e

SHA1
6d447d17f6940d420dea93bda24d42424ef0c5b2

SHA256
91a6073fee95df45b5339667b67a48859d5be0e6cf8a8150ec3f448ee101d4a2

SHA512
077d8da7d8ecbf6c2f137ef0506aa6e3300ea46daa1d78b3d60b3384129414815d23bf950d790b0983f0cd1669ce57ec3e0866ada3dd47f3a4a1aa792bbc126f

Download Submit
memory/1536-131-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2772-119-0x0000000005080000-0x000000000508A000-memory.dmp

Filesize
40KB

Download
memory/2772-121-0x00000000079A0000-0x0000000007A3C000-memory.dmp

Filesize
624KB

Download
memory/2772-122-0x0000000007A40000-0x0000000007A8C000-memory.dmp

Filesize
304KB

Download
memory/2772-120-0x0000000007660000-0x000000000766C000-memory.dmp

Filesize
48KB

Download
memory/2772-115-0x0000000000640000-0x00000000006EE000-memory.dmp

Filesize
696KB

Download
memory/2772-118-0x0000000004FF0000-0x0000000005000000-memory.dmp

Filesize
64KB

Download
memory/2772-117-0x00000000050C0000-0x0000000005152000-memory.dmp

Filesize
584KB

Download
memory/2772-116-0x0000000005520000-0x0000000005A1E000-memory.dmp

Filesize
5.0MB

Download
memory/3520-123-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3520-124-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3688-128-0x00000000049B0000-0x0000000004EAE000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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