remcos | cb8d0ba3cb1d8f9222e80075cbf88dd0500b557f68d8cda57ce44258a1d2fd52

General

Target

out_sig.exe
Size

2.8MB
MD5

e26af3f92e8f9e8082d660f31353f86d
SHA1

d185030089248234c9e83ad9216b3b8f7890167a
SHA256

cb8d0ba3cb1d8f9222e80075cbf88dd0500b557f68d8cda57ce44258a1d2fd52
SHA512

9acee413adb0af0414e10153d54b806b5bacc82c878aef60ac6948a41fbdb50533119b547ad4b4f0325c0b3c6e36da3f4f8f3aeb5987810446977377e8c022aa
SSDEEP

49152:fA3zZk+dsK03OTOBz54VY/+Xn1wFrk0MlLTBFPFGNK/b337CWpfm6Efmi0:fA3lsF5+3n1ErMlPBFtMibOa5T

Score

10^/10

remcos neuvaler discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

NEUVALER

C2

hjgfjygjfghfhfggjjgfyfgjh.con-ip.com: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-MYQH4O
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\Software\Microsoft\Windows\CurrentVersion\Run\ImageUSB = "C:\\Users\\Admin\\Pictures\\ImageWiz\\ImageUsbTool.exe"	out_sig.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	out_sig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	out_sig.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3884	out_sig.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3816 wrote to memory of 3884	3816	out_sig.exe	73
PID 3816 wrote to memory of 3884	3816	out_sig.exe	73
PID 3816 wrote to memory of 3884	3816	out_sig.exe	73
PID 3816 wrote to memory of 3884	3816	out_sig.exe	73
PID 3816 wrote to memory of 3884	3816	out_sig.exe	73

C:\Users\Admin\AppData\Local\Temp\out_sig.exe
"C:\Users\Admin\AppData\Local\Temp\out_sig.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3816
- C:\Users\Admin\AppData\Local\Temp\out_sig.exe
  "C:\Users\Admin\AppData\Local\Temp\out_sig.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3816-10-0x0000000000400000-0x000000000074C000-memory.dmp

Filesize
3.3MB

Download
memory/3816-0-0x0000000000400000-0x000000000074C000-memory.dmp

Filesize
3.3MB

Download
memory/3816-4-0x0000000000400000-0x000000000074C000-memory.dmp

Filesize
3.3MB

Download
memory/3816-6-0x0000000000400000-0x000000000074C000-memory.dmp

Filesize
3.3MB

Download
memory/3816-24-0x0000000000409000-0x0000000000422000-memory.dmp

Filesize
100KB

Download
memory/3816-1-0x0000000000409000-0x0000000000422000-memory.dmp

Filesize
100KB

Download
memory/3816-3-0x0000000000400000-0x000000000074C000-memory.dmp

Filesize
3.3MB

Download
memory/3816-5-0x0000000000400000-0x000000000074C000-memory.dmp

Filesize
3.3MB

Download
memory/3816-8-0x0000000000400000-0x000000000074C000-memory.dmp

Filesize
3.3MB

Download
memory/3884-16-0x0000000000750000-0x00000000007D2000-memory.dmp

Filesize
520KB

Download
memory/3884-17-0x0000000000750000-0x00000000007D2000-memory.dmp

Filesize
520KB

Download
memory/3884-18-0x0000000000400000-0x000000000074C000-memory.dmp

Filesize
3.3MB

Download
memory/3884-12-0x0000000000750000-0x00000000007D2000-memory.dmp

Filesize
520KB

Download
memory/3884-7-0x0000000000750000-0x00000000007D2000-memory.dmp

Filesize
520KB

Download
memory/3884-13-0x0000000000750000-0x00000000007D2000-memory.dmp

Filesize
520KB

Download
memory/3884-19-0x0000000000750000-0x00000000007D2000-memory.dmp

Filesize
520KB

Download
memory/3884-20-0x0000000000750000-0x00000000007D2000-memory.dmp

Filesize
520KB

Download
memory/3884-21-0x0000000000750000-0x00000000007D2000-memory.dmp

Filesize
520KB

Download
memory/3884-11-0x0000000000750000-0x00000000007D2000-memory.dmp

Filesize
520KB

Download
memory/3884-26-0x0000000000750000-0x00000000007D2000-memory.dmp

Filesize
520KB

Download
memory/3884-27-0x0000000000750000-0x00000000007D2000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads