remcos | 0f8123df7cf3d74e9bef7c70c010b17176c90c338a39be5aa0e14d10adb4bbca

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-01-2025 03:52

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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

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
behavioral2/memory/1608-0-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-1-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-2-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-3-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-4-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-5-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-6-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-7-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-8-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-9-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-10-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-11-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-12-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-13-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-14-0x0000000000400000-0x000000000047E000-memory.dmp	upx
behavioral2/memory/1608-15-0x0000000000400000-0x000000000047E000-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
1608	0f8123df7cf3d74e9bef7c70c010b17176c90c338a39be5aa0e14d10adb4bbca.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1608	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:1608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1608-0-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-1-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-2-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-3-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-4-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-5-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-6-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-7-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-8-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-9-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-10-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-11-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-12-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-13-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-14-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1608-15-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download