remcos | f3d332df7696f05fa4c501050447a6b373adf048f1a0249cd03a5584110b40da

General

Target

UPS_CBIJ90511770131.exe
Size

962KB
MD5

89844adca9d975b9933cea1a576ada58
SHA1

c08481b4cf49fcf2979b2c72213d31c064a760e3
SHA256

f3d332df7696f05fa4c501050447a6b373adf048f1a0249cd03a5584110b40da
SHA512

6c0b8a2d0298f02994fabd39dc2a1da491e7b84bdea55b59863c595db9aeb77b2190b6ce8091c2acb0d7c3078b858b390876a45f281072cc730dfd0a5b095b25
SSDEEP

24576:+CfpCdeGe8+2+NE2HqIvU0BsnpCY3QeEz+9vmvGQJM:bFnepIsGskY3a+Zoe

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

yayabeloo.duckdns.org:6847

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-VPA6N9
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3384 set thread context of 4200	3384	UPS_CBIJ90511770131.exe	98

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	UPS_CBIJ90511770131.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	UPS_CBIJ90511770131.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4200	UPS_CBIJ90511770131.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3384 wrote to memory of 4200	3384	UPS_CBIJ90511770131.exe	98
PID 3384 wrote to memory of 4200	3384	UPS_CBIJ90511770131.exe	98
PID 3384 wrote to memory of 4200	3384	UPS_CBIJ90511770131.exe	98
PID 3384 wrote to memory of 4200	3384	UPS_CBIJ90511770131.exe	98
PID 3384 wrote to memory of 4200	3384	UPS_CBIJ90511770131.exe	98
PID 3384 wrote to memory of 4200	3384	UPS_CBIJ90511770131.exe	98
PID 3384 wrote to memory of 4200	3384	UPS_CBIJ90511770131.exe	98
PID 3384 wrote to memory of 4200	3384	UPS_CBIJ90511770131.exe	98
PID 3384 wrote to memory of 4200	3384	UPS_CBIJ90511770131.exe	98
PID 3384 wrote to memory of 4200	3384	UPS_CBIJ90511770131.exe	98

C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe
"C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3384
- C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe
  "C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4200

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

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
3afc288c5ac8e3b3f0f3d5641a165c58

SHA1
224bc49d1405009a89100e20775c67ef84c0d120

SHA256
0bfd2432a1af25dccc55fd9802cf02923ad38edf78235918fbb0dfbc010cb4df

SHA512
97445c4d8572330ace3e8caeb7edbe8c3d744080fa8af1022ea715d6791bf5e1bb3d6870bc59bc38763229b3b897c5c93cd5e6f3ed28a68fa350a8f6aee8f884

Download Submit
memory/3384-20-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/3384-2-0x0000000005220000-0x00000000057C4000-memory.dmp

Filesize
5.6MB

Download
memory/3384-3-0x0000000004D50000-0x0000000004DE2000-memory.dmp

Filesize
584KB

Download
memory/3384-4-0x0000000004E90000-0x0000000004F2C000-memory.dmp

Filesize
624KB

Download
memory/3384-6-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/3384-5-0x0000000004E10000-0x0000000004E1A000-memory.dmp

Filesize
40KB

Download
memory/3384-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/3384-8-0x00000000745EE000-0x00000000745EF000-memory.dmp

Filesize
4KB

Download
memory/3384-9-0x00000000745E0000-0x0000000074D90000-memory.dmp

Filesize
7.7MB

Download
memory/3384-10-0x0000000007BD0000-0x0000000007C92000-memory.dmp

Filesize
776KB

Download
memory/3384-1-0x00000000003E0000-0x00000000004D6000-memory.dmp

Filesize
984KB

Download
memory/3384-7-0x0000000005FF0000-0x000000000600C000-memory.dmp

Filesize
112KB

Download
memory/4200-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4200-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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