remcos | e10b45022157e2341003e114e5ab08927f35a8a68859cf1ad6b486d74f9e1bfd

General

Target

$PLUGINSDIR/edfkc.dll
Size

106KB
MD5

5764627a81a77a4197a8e8383e943011
SHA1

16e3f84d8e1b2dacd3b85c85ba1f5bde41a961fa
SHA256

856422a4568c141501f6b6eafbbbdd189c64e39c585536a5272b04a9fbc64941
SHA512

7cca6ab879bb8e39dd8819435631d479131152b906b7628c570d7dc1d4adb11e09f1fbf8b283e0798befcfef874021d8faa5d66d766ae3d08593868b981bdcb2
SSDEEP

3072:mbEO8PQK9Hrn1AIG2XQpO2IbMi0msG7eqgfp:mE9HrkpO30msG7Za

Score

10^/10

remcos jimbo discovery rat

Malware Config

Extracted

Family

remcos

Botnet

Jimbo

C2

nnnnoy.ddns.net:5367

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-3Z7H52
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
wikipedia;solitaire;

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

Jimbo

C2

nnnnoy.ddns.net:5367

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-3Z7H52
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
wikipedia;solitaire;

Signatures

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2708	2660	WerFault.exe	31

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2272	2420	rundll32.exe	30
PID 2420 wrote to memory of 2272	2420	rundll32.exe	30
PID 2420 wrote to memory of 2272	2420	rundll32.exe	30
PID 2420 wrote to memory of 2272	2420	rundll32.exe	30
PID 2420 wrote to memory of 2272	2420	rundll32.exe	30
PID 2420 wrote to memory of 2272	2420	rundll32.exe	30
PID 2420 wrote to memory of 2272	2420	rundll32.exe	30
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2272 wrote to memory of 2660	2272	rundll32.exe	31
PID 2660 wrote to memory of 2708	2660	rundll32.exe	32
PID 2660 wrote to memory of 2708	2660	rundll32.exe	32
PID 2660 wrote to memory of 2708	2660	rundll32.exe	32
PID 2660 wrote to memory of 2708	2660	rundll32.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\edfkc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\edfkc.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2272
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\edfkc.dll,#1
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2660
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2660 -s 220
      4⤵
      Program crash
      PID:2708

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

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Downloads

memory/2272-1-0x0000000010000000-0x0000000010020000-memory.dmp

Filesize
128KB

Download
memory/2272-0-0x0000000010000000-0x0000000010020000-memory.dmp

Filesize
128KB

Download
memory/2272-10-0x0000000010000000-0x0000000010020000-memory.dmp

Filesize
128KB

Download
memory/2660-2-0x00000000000D0000-0x00000000000F1000-memory.dmp

Filesize
132KB

Download
memory/2660-13-0x00000000000D0000-0x00000000000F1000-memory.dmp

Filesize
132KB

Download
memory/2660-12-0x00000000000D0000-0x00000000000F1000-memory.dmp

Filesize
132KB

Download
memory/2660-7-0x00000000000D0000-0x00000000000F1000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads