remcos | fc5a104616191074e73ca74e64056c26e129b75395e57257eebf629772200d21

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-10-2024 08:48

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General

Target

1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe
Size

469KB
MD5

c42b1e2c4f831723e13fa9fcfe26be96
SHA1

0cdce2551a12c15df38d10c532f3af640f5f7fd8
SHA256

fc5a104616191074e73ca74e64056c26e129b75395e57257eebf629772200d21
SHA512

78a7f391392a51722af4ee0569fe90cb7acb4b528ee72900c449f022262c3f70dfe38783397e8854f553e9365cac8672654b9ebe327103ea7ef1e48e337c9dde
SSDEEP

12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQS0n9:uiLJbpI7I2WhQqZ709

Score

10^/10

remcos octobers discovery rat

Malware Config

Extracted

Family

remcos

Botnet

OCTOBERS

ab9001.ddns.net:23782

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
VLC.exe
copy_folder
VLC
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
Chrorne-28R56P
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Rmc
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 1044 set thread context of 1192	1044	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe	85

System Location Discovery: System Language Discovery 1 TTPs 1 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	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1044	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1044	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 1192	1044	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe	85
PID 1044 wrote to memory of 1192	1044	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe	85
PID 1044 wrote to memory of 1192	1044	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe	85
PID 1044 wrote to memory of 1192	1044	1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe	85

C:\Users\Admin\AppData\Local\Temp\1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe
"C:\Users\Admin\AppData\Local\Temp\1728373206596a852cdbe7ae697de423fbd80cabe33d7a6a584032b72164b61e0692c12d1a849.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  PID:1192

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
90a4c2fb712fd21dd650517fc0c5d1d3

SHA1
0144873db70dbb9404b60bea14ca364c1755fb0b

SHA256
5e2e4db8ea8e4d5d542626a2895ed6437231356679bfef5d49df8428be65ec4c

SHA512
8729a231d9221701012f3cc610fc4fcec8122542dcfef02d8ebcc78adc9a5c2ba8bf2f497eae994ff24151c26aca21285583216b6052b5085e717919f8e3d702

Download Submit
memory/1192-0-0x0000000000520000-0x000000000059F000-memory.dmp

Filesize
508KB

Download
memory/1192-1-0x0000000000520000-0x000000000059F000-memory.dmp

Filesize
508KB

Download
memory/1192-2-0x0000000000520000-0x000000000059F000-memory.dmp

Filesize
508KB

Download
memory/1192-3-0x0000000000520000-0x000000000059F000-memory.dmp

Filesize
508KB

Download