remcos | f2ab79314469d783c26f6277b3775418a1a4639361dfd96f37933f851838b4f1

General

Target

83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe
Size

1.0MB
MD5

a78ada4f0dd922504d65fb047f24a6e9
SHA1

b554b3d81e133d07571bbc1fc8ea5efd5c1e4bbc
SHA256

83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93
SHA512

fdb9c8686ba93ef8d81c3a57c541a1f3a0942271b8a31254f4070ac07d1c8a6cd3cb9b6b7d51669a7c4a2ea7b3edb65a34a5a953f3a5c942d2b1ccb96ab88a25
SSDEEP

24576:jDRAXOViv4TiGwXnznRO+H1UErIFraisDsi:H8OiGwXjRO2HZZ

Score

10^/10

remcos julito discovery rat

Malware Config

Extracted

Family

remcos

Version

3.1.2 Pro

Botnet

Julito

C2

finalesdejulio2020202020.duckdns.org:2020

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
IntelUpdate.exe
copy_folder
Intel
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-QG4917
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2492 set thread context of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2888	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2892	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2888	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	31
PID 2492 wrote to memory of 2888	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	31
PID 2492 wrote to memory of 2888	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	31
PID 2492 wrote to memory of 2888	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	31
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33
PID 2492 wrote to memory of 2892	2492	83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe	33

C:\Users\Admin\AppData\Local\Temp\83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe
"C:\Users\Admin\AppData\Local\Temp\83347bd76385a61d951f1db9063131d2814b944bea229b8509d2cd89a4dcbb93.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BjWceYheKLX" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4BCF.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2888
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4BCF.tmp

Filesize
1KB

MD5
471b4eefd7cd6adbd46b0081ee883e80

SHA1
c84520b81a5747788851c51815c998818b14e5f5

SHA256
4fc8dcc8c991d13c822673ce3afeb00e05f1083c83e693b02908912d7d722c24

SHA512
4b556516daa8ec0b62e47b8ddb29a05c68a3f1843fdcb1cc2c4f040de50625964bd835c5f9fd7fe34a332b6ce14294c243e14cc7698785aba4da5aa4838f1fba

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
74B

MD5
93db63a0410899f003ca07b86738f308

SHA1
5ca7948930622c4a5c97b301d767604c11a0a46b

SHA256
78f5301ce258726d620059c1e12fc0452ddafd24f23b947960e380fe575e4bf2

SHA512
89c9be5fc4cc4ef6961d50efa23643011f8de137c806306965f290bb9452d751fd0dd12cf4a25e912c052e1097f45a54f0489370f375c1f06ba629ee6f509a00

Download Submit
memory/2492-0-0x000000007413E000-0x000000007413F000-memory.dmp

Filesize
4KB

Download
memory/2492-1-0x0000000000A90000-0x0000000000BA0000-memory.dmp

Filesize
1.1MB

Download
memory/2492-2-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download
memory/2492-3-0x00000000003D0000-0x00000000003E8000-memory.dmp

Filesize
96KB

Download
memory/2492-4-0x000000007413E000-0x000000007413F000-memory.dmp

Filesize
4KB

Download
memory/2492-5-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download
memory/2492-6-0x0000000008000000-0x00000000080DE000-memory.dmp

Filesize
888KB

Download
memory/2492-7-0x0000000005E00000-0x0000000005E82000-memory.dmp

Filesize
520KB

Download
memory/2492-36-0x0000000074130000-0x000000007481E000-memory.dmp

Filesize
6.9MB

Download
memory/2892-17-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2892-16-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2892-32-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2892-35-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2892-31-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2892-29-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2892-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-25-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2892-23-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2892-21-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2892-19-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2892-14-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2892-13-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads