remcos | 0f8123df7cf3d74e9bef7c70c010b17176c90c338a39be5aa0e14d10adb4bbca

General

Target

0f8123df7cf3d74e9bef7c70c010b17176c90c338a39be5aa0e14d10adb4bbca.exe
Size

197KB
MD5

d09d4257ff23549630551efa8585be53
SHA1

dd0e7ce59459ca4362a8d5f94defa2929dc086c3
SHA256

0f8123df7cf3d74e9bef7c70c010b17176c90c338a39be5aa0e14d10adb4bbca
SHA512

a3a61843b3885045a3b390dcbe0202e3bea90c67c05c1713de2afab979c66bdfb4a6edc7f60cb253a82552cbbf42dba68305f587a14f9cc15a8773a12f0ac9e5
SSDEEP

6144:WE0b2IzkAXQ7LPJAWhYDjhsqS2PmpCXY1xTrGhj1boS:WE0qQkpTesYDtkpCXY19rGh1boS

Score

10^/10

remcos remotehost discovery rat upx

Malware Config

Extracted

Family

remcos

Version

5.1.3 Light

Botnet

RemoteHost

C2

127.0.0.1:2404

Attributes

audio_folder
MicRecords
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
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-7WZ0G2
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

UPX packed file 16 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2732-0-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-1-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-2-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-3-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-4-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-5-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-6-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-7-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-8-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-9-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-10-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-11-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-12-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-13-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-14-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral1/memory/2732-15-0x0000000000400000-0x000000000047E000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0f8123df7cf3d74e9bef7c70c010b17176c90c338a39be5aa0e14d10adb4bbca.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2732	0f8123df7cf3d74e9bef7c70c010b17176c90c338a39be5aa0e14d10adb4bbca.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2732	0f8123df7cf3d74e9bef7c70c010b17176c90c338a39be5aa0e14d10adb4bbca.exe

C:\Users\Admin\AppData\Local\Temp\0f8123df7cf3d74e9bef7c70c010b17176c90c338a39be5aa0e14d10adb4bbca.exe
"C:\Users\Admin\AppData\Local\Temp\0f8123df7cf3d74e9bef7c70c010b17176c90c338a39be5aa0e14d10adb4bbca.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2732-0-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-1-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-2-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-3-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-4-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-5-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-6-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-7-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-8-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-9-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-10-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-11-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-12-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-13-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-14-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/2732-15-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download

Analysis

Sharing