remcos | bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e

General

Target

bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
Size

1.3MB
MD5

c4fece311d6ad36ec3f85fcded890197
SHA1

7494644e33239d3668728571dfda2d786c96a04e
SHA256

bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e
SHA512

c5caed981f8a874a25af9b6aba0e0671670917c80ff149c96e501e10977b6f8e6719d8485fa4f562f61149cca9a7339771c1c1c1154fcc603fc65ce53419ae8f
SSDEEP

24576:UAHnh+eWsN3skA4RV1Hom2KXMmHa7MnFfmMlwG07QFL+SEI5:jh+ZkldoPK8Ya7IFfmMc7QTP

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

154.216.18.216:2404

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-7K8JAD
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 4224 set thread context of 2404	4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe	91

System Location Discovery: System Language Discovery 1 TTPs 3 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	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5104 wrote to memory of 2824	5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe	87
PID 5104 wrote to memory of 2824	5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe	87
PID 5104 wrote to memory of 2824	5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe	87
PID 5104 wrote to memory of 4224	5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe	88
PID 5104 wrote to memory of 4224	5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe	88
PID 5104 wrote to memory of 4224	5104	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe	88
PID 4224 wrote to memory of 2404	4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe	91
PID 4224 wrote to memory of 2404	4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe	91
PID 4224 wrote to memory of 2404	4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe	91
PID 4224 wrote to memory of 2404	4224	bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe	91

C:\Users\Admin\AppData\Local\Temp\bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
"C:\Users\Admin\AppData\Local\Temp\bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:5104
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe"
  2⤵
  PID:2824
- C:\Users\Admin\AppData\Local\Temp\bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe
  "C:\Users\Admin\AppData\Local\Temp\bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:4224
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\bf0544c92b379c01615e44f645578572e2bdcc966c5125b1198e5d2c118f277e.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2404

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:\Users\Admin\AppData\Local\Temp\benting

Filesize
196KB

MD5
369831fd11e0d54974552e4b8cf4c086

SHA1
ec14327c38bd7308b7926f357e63999a783520ff

SHA256
6266c1de959ecb078811b273ad8db10785d6a28eba032bf3df5e6b8a14c7ccb6

SHA512
7d21262011cf1bc005c52ffbd599022db55be2ee98876d092f936b4e8cfcf34ee0983f44e6c9d83ba562936a2ec86fce35ea13661491e7dab7bb034dd66375ca

Download Submit
memory/2404-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2404-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5104-11-0x0000000001CE0000-0x0000000001CE4000-memory.dmp

Filesize
16KB

Download

Analysis

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