remcos | bfc092b384976e97153bae0e29359461bfd65fce5ad8188d6460de57bc680eaf

Analysis

max time kernel
120s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2024 18:52

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General

Target

1/0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160.exe
Size

1.3MB
MD5

73d006e33d8eda033e684c07b15c53ad
SHA1

e3e0a09b37beee1e19d5a6b9fd5322f906f4493d
SHA256

0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160
SHA512

1b2822a9f568783a6064194c21e4147ffb10c1a0c3ca00f586f3306cf7b5d0bee39af5dad5a78f720d75c09b0b71d44c75d05d9b432b1159915977006e9252db
SSDEEP

24576:KAHnh+eWsN3skA4RV1Hom2KXMmHaKi4Tivd32MUMh9ZzU2Fk1gn5:dh+ZkldoPK8YaKi4mrUUZbk1I

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

192.3.64.149:2888

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-7Q1GRN
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 2 IoCs

description	pid	Process	procid_target
PID 3832 set thread context of 1688	3832	0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160.exe	85
PID 1688 set thread context of 64	1688	svchost.exe	86

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	0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1688	svchost.exe
1688	svchost.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3832	0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160.exe
1688	svchost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3832 wrote to memory of 1688	3832	0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160.exe	85
PID 3832 wrote to memory of 1688	3832	0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160.exe	85
PID 3832 wrote to memory of 1688	3832	0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160.exe	85
PID 3832 wrote to memory of 1688	3832	0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160.exe	85
PID 1688 wrote to memory of 64	1688	svchost.exe	86
PID 1688 wrote to memory of 64	1688	svchost.exe	86
PID 1688 wrote to memory of 64	1688	svchost.exe	86
PID 1688 wrote to memory of 64	1688	svchost.exe	86

C:\Users\Admin\AppData\Local\Temp\1\0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160.exe
"C:\Users\Admin\AppData\Local\Temp\1\0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3832
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\1\0280cde4a65664a05361129dc1cfa10bc17b3fa9567103ce6eb9d07b06f8f160.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1688
- - \??\c:\program files (x86)\internet explorer\iexplore.exe
    "c:\program files (x86)\internet explorer\iexplore.exe"
    3⤵
    PID:64

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

Replay Monitor

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Downloads

memory/64-15-0x0000000000580000-0x000000000058E000-memory.dmp

Filesize
56KB

Download
memory/64-16-0x0000000000580000-0x000000000058E000-memory.dmp

Filesize
56KB

Download
memory/64-20-0x0000000000580000-0x000000000058E000-memory.dmp

Filesize
56KB

Download
memory/64-18-0x0000000000580000-0x000000000058E000-memory.dmp

Filesize
56KB

Download
memory/1688-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1688-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1688-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1688-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1688-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3832-10-0x0000000003F20000-0x0000000003F24000-memory.dmp

Filesize
16KB

Download