remcos | 4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de

Analysis

max time kernel
149s
max time network
146s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
02/08/2024, 01:41

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General

Target

4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe
Size

2.4MB
MD5

ccd26c2d4eabc84f9d8ad478048f322e
SHA1

188367cac00cbf23edc462b97af53e7bdd1b9ecc
SHA256

4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de
SHA512

51c49a7907f41d88a3b4adc2b3671dd5afcf7008e0de7a97b86f33554d07f617b4567ec0973ab48680465ca25a264d9d93d4ce5b62f5edb0d5092f76779580c5
SSDEEP

49152:8ucZdqJC0PBOYONY9av3sGZk4iuAitJdtsGeqX8nfYQNfHawhLinKp7cZWV:8lZi4hNYL2jUqX4QQNywhL9sw

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

horsesnje.net:3345

Attributes

audio_folder
MicRecords
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-3JM8X2
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2052 set thread context of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30

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	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe
Token: SeDebugPrivilege	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2756	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30
PID 2052 wrote to memory of 2756	2052	4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe	30

C:\Users\Admin\AppData\Local\Temp\4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe
"C:\Users\Admin\AppData\Local\Temp\4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2052
- C:\Users\Admin\AppData\Local\Temp\4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe
  "C:\Users\Admin\AppData\Local\Temp\4a924a12c3ba601eaa1f2e3f8741fa685f4c291794b8057b7ed2cbac36d615de.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
d4e86a0e10a33015829e7ceade0b6534

SHA1
01e1bd97e08881e6d4ccef8dc93d7f1a0cd427d4

SHA256
fcb5530e680788777219467411f3dc5ba306cf18a3989ca72f7e4eabd8c907e0

SHA512
63a92cd67e8037d2d12b702fa1892494eedbad01cb902216b4c7d959b6068c8601c932f810d7050979c9183db61a2d11f4a248c49c2b0d802d8210dfe3c7f0ba

Download Submit
memory/2052-46-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-2-0x0000000004CB0000-0x0000000004F0E000-memory.dmp

Filesize
2.4MB

Download
memory/2052-3-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-10-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-12-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-8-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-16-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-20-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-26-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-36-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-42-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-50-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-56-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-54-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-52-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-58-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-48-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-60-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-62-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-66-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-44-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-64-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-0-0x0000000074E3E000-0x0000000074E3F000-memory.dmp

Filesize
4KB

Download
memory/2052-40-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-38-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-34-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-32-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-30-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-28-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-24-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-22-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-18-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-14-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-6-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-4-0x0000000004CB0000-0x0000000004F08000-memory.dmp

Filesize
2.3MB

Download
memory/2052-4890-0x0000000002330000-0x000000000237C000-memory.dmp

Filesize
304KB

Download
memory/2052-4889-0x0000000004AA0000-0x0000000004B3A000-memory.dmp

Filesize
616KB

Download
memory/2052-4892-0x0000000074E30000-0x000000007551E000-memory.dmp

Filesize
6.9MB

Download
memory/2052-4891-0x0000000074E30000-0x000000007551E000-memory.dmp

Filesize
6.9MB

Download
memory/2052-4893-0x0000000004500000-0x0000000004554000-memory.dmp

Filesize
336KB

Download
memory/2052-1-0x0000000000B40000-0x0000000000DA2000-memory.dmp

Filesize
2.4MB

Download
memory/2052-4915-0x0000000074E30000-0x000000007551E000-memory.dmp

Filesize
6.9MB

Download
memory/2756-4922-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2756-4909-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download