remcos | 8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779

General

Target

8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe
Size

931KB
MD5

e0934033ebb050e467f7f7299e2d35f1
SHA1

fe51310df5ddb6552cfb6f100f2b34ab00d421ee
SHA256

8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779
SHA512

6207b3e5be099bfe20b385d40a92e4da1beb0d505193ca2731a86c04699a916b50b8a8bcd7a7fdae7683683c2ae4b009c690ca339824e37d7a26ee8bb30646a7
SSDEEP

12288:AU+LeUFrzvvTrXM2Wh1GpE7OKlr+uPtiZoEPrltbMlUyv1dtK1rx0YfXc4d:ArFrnrXPWh1G6H+u1JmJ9CxNf6xW

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

172.245.123.12:8690

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
remcos
mouse_option
false
mutex
Rmc-WWFOQR
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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
51	880	Process not Found

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3612 set thread context of 4676	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe	95

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	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1020	MicrosoftEdgeUpdate.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe
3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4676	AddInProcess32.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3612 wrote to memory of 4676	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe	95
PID 3612 wrote to memory of 4676	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe	95
PID 3612 wrote to memory of 4676	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe	95
PID 3612 wrote to memory of 4676	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe	95
PID 3612 wrote to memory of 4676	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe	95
PID 3612 wrote to memory of 4676	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe	95
PID 3612 wrote to memory of 4676	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe	95
PID 3612 wrote to memory of 4676	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe	95
PID 3612 wrote to memory of 4676	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe	95
PID 3612 wrote to memory of 4676	3612	8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe	95

C:\Users\Admin\AppData\Local\Temp\8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe
"C:\Users\Admin\AppData\Local\Temp\8f03b29aa7892aeee0569b5b0104f290ecb33749bbf11eb406f8dbb069f21779.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3612
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4676

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7MTlERkE3MzYtNTUzQi00QkUzLTk4ODYtOEE3NkE4RjhEOEVCfSIgdXNlcmlkPSJ7NDFBQ0RBQzQtMTUwOS00NTI5LThCRjgtQkU3MjgzRDYyOEM5fSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7RjQ0MkJFMkMtRjQ1MC00NjlGLTk1ODctOTNEOTQzNzYwMEY1fSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0MS4xMjg4IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iNDgiIGlzX3dpcD0iMCIgaXNfaW5fbG9ja2Rvd25fbW9kZT0iMCIvPjxvZW0gcHJvZHVjdF9tYW51ZmFjdHVyZXI9IiIgcHJvZHVjdF9uYW1lPSIiLz48ZXhwIGV0YWc9IiZxdW90O0UreGJBejZZNnNVMTI4OWJTNnFsNFZSTGJramZCVUdUTUpzanJIcjQ0aUk9JnF1b3Q7Ii8-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI2IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5ODUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODQ0NDQzNjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDU4MDYxMzkxIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:1020

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
b4cdbffffcb60fb5c9a6635a1b388551

SHA1
d84dded35e89bc8f24bd652a4b22c7aadab39794

SHA256
d67ee4476cd60826ac937a1a41efcdd86fe557110bafa275b1b79e490c81ed24

SHA512
021183917c1954373cc76bef63e5991cc2f4e66d5ebed86b919fa0e090fc27adb756b335845b229026b8faf08f8d9d5e0193545bab9b77f2c5431ef172618430

Download Submit
memory/3612-8-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/3612-10-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/3612-3-0x0000000004B00000-0x0000000004B92000-memory.dmp

Filesize
584KB

Download
memory/3612-4-0x0000000004BA0000-0x0000000004C3C000-memory.dmp

Filesize
624KB

Download
memory/3612-5-0x0000000004AC0000-0x0000000004ACA000-memory.dmp

Filesize
40KB

Download
memory/3612-6-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/3612-2-0x0000000005010000-0x00000000055B4000-memory.dmp

Filesize
5.6MB

Download
memory/3612-7-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/3612-9-0x00000000079B0000-0x0000000007C72000-memory.dmp

Filesize
2.8MB

Download
memory/3612-26-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/3612-11-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/3612-12-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/3612-14-0x00000000022E0000-0x00000000022FA000-memory.dmp

Filesize
104KB

Download
memory/3612-15-0x0000000005A50000-0x0000000005A56000-memory.dmp

Filesize
24KB

Download
memory/3612-1-0x0000000000120000-0x000000000020E000-memory.dmp

Filesize
952KB

Download
memory/3612-0-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/4676-17-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-20-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-19-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-24-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-28-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-30-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-36-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-16-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4676-44-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

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