remcos | b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2

General

Target

b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
Size

620KB
MD5

458244c986e32aaadd41d24c324927a0
SHA1

d49fd336aa758a128f5b801a115d8a44b25f06cf
SHA256

b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2
SHA512

2454f9e59589946faef2d38a93877552040233c06f9d257ac80e78133ad8a854e677655be28861f85f6f865e7222863b5989e85eeb9a39504d6ef8084d82b07c
SSDEEP

12288:M417/cAhnVxR24T93+suohEX7RGFO3dugtOh0:M417/ciXRQnoWXEg3dO

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

www.chileeclassproject.com:2404

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
5451
mouse_option
false
mutex
Rmc-1FU53L
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

Processes:

b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

description	pid	process	target process
PID 448 set thread context of 3096	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.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

Processes:

b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exeb44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

pid	process
448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

description pid process

Token: SeDebugPrivilege 448 b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

pid process

3096 b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

description	pid	process
Token: SeDebugPrivilege	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

pid	process
3096	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

description	pid	process	target process
PID 448 wrote to memory of 1664	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 1664	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 1664	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 3096	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 3096	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 3096	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 3096	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 3096	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 3096	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 3096	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 3096	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 3096	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 448 wrote to memory of 3096	448	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

C:\Users\Admin\AppData\Local\Temp\b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
"C:\Users\Admin\AppData\Local\Temp\b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:448
- C:\Users\Admin\AppData\Local\Temp\b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
  "C:\Users\Admin\AppData\Local\Temp\b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe"
  2⤵
  PID:1664
- C:\Users\Admin\AppData\Local\Temp\b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
  "C:\Users\Admin\AppData\Local\Temp\b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3096

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

Loading Replay Monitor...

Downloads

C:\ProgramData\5451\logs.dat

Filesize
144B

MD5
7f2eb68a1b9e2a5053d04b70cb9ab832

SHA1
4508ba0a516983fab7ef96794945b980d54805f3

SHA256
1d45af886b57481579520b8a78418315a16d9f41e55380f29478ca4a3830b264

SHA512
00ae6991d545a75b94055092d35324510f1a5589693c29d2870245a05a674ff8fecfe36e2e14d4aa7e198a4ddc05d1ffb2804edcee525cc1037e9d6daea35432

Download Submit
memory/448-17-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/448-1-0x0000000000D50000-0x0000000000DF2000-memory.dmp

Filesize
648KB

Download
memory/448-2-0x0000000005CE0000-0x0000000006284000-memory.dmp

Filesize
5.6MB

Download
memory/448-3-0x00000000057E0000-0x0000000005872000-memory.dmp

Filesize
584KB

Download
memory/448-4-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/448-5-0x00000000059A0000-0x00000000059AA000-memory.dmp

Filesize
40KB

Download
memory/448-6-0x0000000005A40000-0x0000000005AC6000-memory.dmp

Filesize
536KB

Download
memory/448-0-0x00000000752CE000-0x00000000752CF000-memory.dmp

Filesize
4KB

Download
memory/3096-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-10-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3096-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads