remcos | 1b756a06817a1b3ab7db454b9b4791567ffabbea9db0ffd5ad9f3c01201c65dd

General

Target

8ab8847b21675188be6c9e4a3782ccda.exe
Size

2.6MB
MD5

8ab8847b21675188be6c9e4a3782ccda
SHA1

8c2923b94ab3db0c67e83ef244642316afe56125
SHA256

1b756a06817a1b3ab7db454b9b4791567ffabbea9db0ffd5ad9f3c01201c65dd
SHA512

72488ba19a0cd1998e085aa0bb27327e5f4606cc769e474d312e39102be18759599ba7ab02fb7ee30ac8d761d2e7f74ebfe75ba22ff5b2e079acdc007098dcfe
SSDEEP

24576:sUe7AbJO3BqXtEOGTPEhRNhvdf2VKtu1Dze6HDpLe1hP+dufPRfvcaeFN+qIOWXZ:sDAiOGT2Nf2+PpAw7lWdnL2Rwhzr6

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Version

2.7.1 Pro

Botnet

RemoteHost

C2

march4great.ddns.net:2409

Attributes

audio_folder
MicRecords
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
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-43G52Y
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
wikipedia;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

8ab8847b21675188be6c9e4a3782ccda.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run\Nvjxnzpi = "\"C:\\Users\\Admin\\AppData\\Roaming\\Umpirjbuvp\\Nvjxnzpi.exe\""	8ab8847b21675188be6c9e4a3782ccda.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8ab8847b21675188be6c9e4a3782ccda.exe

description pid process target process

PID 1372 set thread context of 1680 1372 8ab8847b21675188be6c9e4a3782ccda.exe 8ab8847b21675188be6c9e4a3782ccda.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe8ab8847b21675188be6c9e4a3782ccda.exe

pid process

1340 powershell.exe
1372 8ab8847b21675188be6c9e4a3782ccda.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exe8ab8847b21675188be6c9e4a3782ccda.exe

description pid process

Token: SeDebugPrivilege 1340 powershell.exe
Token: SeDebugPrivilege 1372 8ab8847b21675188be6c9e4a3782ccda.exe

description	pid	process	target process
PID 1372 set thread context of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe

pid	process
1340	powershell.exe
1372	8ab8847b21675188be6c9e4a3782ccda.exe

description	pid	process
Token: SeDebugPrivilege	1340	powershell.exe
Token: SeDebugPrivilege	1372	8ab8847b21675188be6c9e4a3782ccda.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

8ab8847b21675188be6c9e4a3782ccda.exe

C:\Users\Admin\AppData\Local\Temp\8ab8847b21675188be6c9e4a3782ccda.exe
"C:\Users\Admin\AppData\Local\Temp\8ab8847b21675188be6c9e4a3782ccda.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1372

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1340

C:\Users\Admin\AppData\Local\Temp\8ab8847b21675188be6c9e4a3782ccda.exe
C:\Users\Admin\AppData\Local\Temp\8ab8847b21675188be6c9e4a3782ccda.exe
2⤵
PID:2036

C:\Users\Admin\AppData\Local\Temp\8ab8847b21675188be6c9e4a3782ccda.exe
C:\Users\Admin\AppData\Local\Temp\8ab8847b21675188be6c9e4a3782ccda.exe
2⤵
PID:1680

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1340-61-0x0000000002470000-0x00000000024B0000-memory.dmp

Filesize
256KB

Download
memory/1340-60-0x0000000002470000-0x00000000024B0000-memory.dmp

Filesize
256KB

Download
memory/1340-64-0x0000000002470000-0x00000000024B0000-memory.dmp

Filesize
256KB

Download
memory/1340-63-0x0000000002470000-0x00000000024B0000-memory.dmp

Filesize
256KB

Download
memory/1372-54-0x0000000001140000-0x00000000013E6000-memory.dmp

Filesize
2.6MB

Download
memory/1372-55-0x0000000004C20000-0x0000000004D5C000-memory.dmp

Filesize
1.2MB

Download
memory/1372-56-0x0000000004BE0000-0x0000000004C20000-memory.dmp

Filesize
256KB

Download
memory/1372-57-0x0000000004AC0000-0x0000000004B52000-memory.dmp

Filesize
584KB

Download
memory/1372-62-0x0000000004BE0000-0x0000000004C20000-memory.dmp

Filesize
256KB

Download
memory/1680-66-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-67-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-68-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-69-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-70-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-71-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-72-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1680-73-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-75-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-76-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-77-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-78-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-80-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-81-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-82-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-83-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-84-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-90-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-91-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-92-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-93-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-94-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-95-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-96-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-100-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-101-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-102-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-103-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-104-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-105-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-106-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-107-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-108-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-109-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-110-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-111-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-114-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-115-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-116-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-117-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-118-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-120-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-121-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-122-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-123-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1680-126-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

description	pid	process	target process
PID 1372 wrote to memory of 1340	1372	8ab8847b21675188be6c9e4a3782ccda.exe	powershell.exe
PID 1372 wrote to memory of 1340	1372	8ab8847b21675188be6c9e4a3782ccda.exe	powershell.exe
PID 1372 wrote to memory of 1340	1372	8ab8847b21675188be6c9e4a3782ccda.exe	powershell.exe
PID 1372 wrote to memory of 1340	1372	8ab8847b21675188be6c9e4a3782ccda.exe	powershell.exe
PID 1372 wrote to memory of 2036	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 2036	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 2036	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 2036	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe
PID 1372 wrote to memory of 1680	1372	8ab8847b21675188be6c9e4a3782ccda.exe	8ab8847b21675188be6c9e4a3782ccda.exe

Analysis

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