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 2380 set thread context of 2960	2380	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 use of SetWindowsHookEx 1 IoCs

Processes:

b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

pid process

2960 b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

pid	process
2960	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe

description	pid	process	target process
PID 2380 wrote to memory of 2960	2380	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 2380 wrote to memory of 2960	2380	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 2380 wrote to memory of 2960	2380	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 2380 wrote to memory of 2960	2380	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 2380 wrote to memory of 2960	2380	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 2380 wrote to memory of 2960	2380	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 2380 wrote to memory of 2960	2380	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 2380 wrote to memory of 2960	2380	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 2380 wrote to memory of 2960	2380	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 2380 wrote to memory of 2960	2380	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe	b44d0c9a344be2637aca53e7b556241d5611f8e807fc053f6f134dfe11ebbfc2.exe
PID 2380 wrote to memory of 2960	2380	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 use of WriteProcessMemory
PID:2380
- 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:2960

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

C:\ProgramData\5451\logs.dat

Filesize
144B

MD5
23de645ffff8a47f51467c3cf8683bcb

SHA1
0b9e9b95552edc4e8a83804b61e1df51a5ceada7

SHA256
9dfc2e957f84f37bbeb03be34c89dd322b3556af1d0cb6983f74eb1dc5e74618

SHA512
903497ab8729f3d86ecdfe711697146c960ee645735d6c9b13fb13825c1b52943da299101f15ccb8912002e9543ff5e94713d96ed5e9a2c1f168598b933575e7

Download Submit
memory/2380-0-0x0000000074ADE000-0x0000000074ADF000-memory.dmp

Filesize
4KB

Download
memory/2380-1-0x0000000000290000-0x0000000000332000-memory.dmp

Filesize
648KB

Download
memory/2380-2-0x0000000004BB0000-0x0000000004C36000-memory.dmp

Filesize
536KB

Download
memory/2380-3-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2380-21-0x0000000074AD0000-0x00000000751BE000-memory.dmp

Filesize
6.9MB

Download
memory/2960-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2960-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-6-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-5-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-4-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2960-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads