remcos | c75778563b8d75895ccfc08382722c71eeccebef84c6be36f6b815fd64b3bb0b

General

Target

8212be2a831fa54a3c820236a5b31fe8.exe
Size

4.5MB
MD5

8212be2a831fa54a3c820236a5b31fe8
SHA1

675d2a576116c16a10ed02cacc6698bae85e8397
SHA256

c75778563b8d75895ccfc08382722c71eeccebef84c6be36f6b815fd64b3bb0b
SHA512

ce600ba22638ca2f8744e8fdc8d25645d88ada72912a2e0718bfa96d954c9914e70eff8d1b6a026c9c2039101fd368d54753685f7bfa533ef489b3204359b0cd
SSDEEP

98304:dUim0OVwFe8GZ0BbNiiFEqTMiy76m6keX:akDXp

Score

10^/10

remcos zoletadaa discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

ZOLETADAA

C2

andreslopezpu1458.con-ip.com:1667

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-GWGDJF
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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\OculusAvast = "C:\\Users\\Admin\\Music\\AvastUpdater\\AvastOculus.exe"	8212be2a831fa54a3c820236a5b31fe8.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	8212be2a831fa54a3c820236a5b31fe8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8212be2a831fa54a3c820236a5b31fe8.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2564	8212be2a831fa54a3c820236a5b31fe8.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2564	2512	8212be2a831fa54a3c820236a5b31fe8.exe	31
PID 2512 wrote to memory of 2564	2512	8212be2a831fa54a3c820236a5b31fe8.exe	31
PID 2512 wrote to memory of 2564	2512	8212be2a831fa54a3c820236a5b31fe8.exe	31
PID 2512 wrote to memory of 2564	2512	8212be2a831fa54a3c820236a5b31fe8.exe	31
PID 2512 wrote to memory of 2564	2512	8212be2a831fa54a3c820236a5b31fe8.exe	31
PID 2512 wrote to memory of 2564	2512	8212be2a831fa54a3c820236a5b31fe8.exe	31

C:\Users\Admin\AppData\Local\Temp\8212be2a831fa54a3c820236a5b31fe8.exe
"C:\Users\Admin\AppData\Local\Temp\8212be2a831fa54a3c820236a5b31fe8.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\8212be2a831fa54a3c820236a5b31fe8.exe
  "C:\Users\Admin\AppData\Local\Temp\8212be2a831fa54a3c820236a5b31fe8.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2564

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

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
272d20564ecbde3077ccf6a1129567e6

SHA1
d9eacab127abaaed9d4462b3b22d130c592d7c93

SHA256
b30c80039a13635732846bf8da1dc7b5c48f75bee7f3ce0db8765c62d44b994c

SHA512
e99d9a310a7f64ab116aafa72f00cc8ee83cf9c307a8c98da33e09be6fbb5d870ddf486115e61c7938a9ba09ba8ae5841c63d6c35bdfc984c5173c92ef4ea269

Download Submit
memory/2512-14-0x0000000000400000-0x00000000008CC000-memory.dmp

Filesize
4.8MB

Download
memory/2512-1-0x0000000000400000-0x00000000008CC000-memory.dmp

Filesize
4.8MB

Download
memory/2512-2-0x00000000004A4000-0x00000000004BD000-memory.dmp

Filesize
100KB

Download
memory/2512-3-0x0000000000400000-0x00000000008CC000-memory.dmp

Filesize
4.8MB

Download
memory/2512-6-0x0000000000400000-0x00000000008CC000-memory.dmp

Filesize
4.8MB

Download
memory/2512-5-0x0000000000400000-0x00000000008CC000-memory.dmp

Filesize
4.8MB

Download
memory/2512-7-0x0000000000400000-0x00000000008CC000-memory.dmp

Filesize
4.8MB

Download
memory/2512-0-0x0000000000400000-0x00000000008CC000-memory.dmp

Filesize
4.8MB

Download
memory/2512-13-0x0000000000400000-0x00000000008CC000-memory.dmp

Filesize
4.8MB

Download
memory/2564-22-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-32-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-12-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2564-8-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-21-0x0000000000400000-0x00000000008CC000-memory.dmp

Filesize
4.8MB

Download
memory/2564-17-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-25-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-26-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-27-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-31-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-16-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-20-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-39-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-40-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-47-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-48-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-55-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-56-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-63-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-64-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download
memory/2564-71-0x00000000001B0000-0x0000000000232000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads