remcos | 57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee

General

Target

57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
Size

1.9MB
MD5

a01fc27f1f56ee7a8803c9ec23516f76
SHA1

5454698bd7f59b0bf6ada7c26e29fcea903caa2a
SHA256

57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee
SHA512

648a557b9f1bca784f3d046541f4f5102640d9ed2d87b854d2720fb35c83f22f0b924d0c71ed3fd8c929b9429fd092cf531e9f8d15be190850ffb63d939f4dee
SSDEEP

24576:OD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYFES7Ns:Op7E+QrFUBgq2aa

Score

10^/10

remcos host credential_access discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Executes dropped EXE 2 IoCs

pid	Process
2744	sbietrcl.exe
2640	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2744 set thread context of 2640	2744	sbietrcl.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
2744	sbietrcl.exe
2744	sbietrcl.exe
2744	sbietrcl.exe
2744	sbietrcl.exe
2744	sbietrcl.exe
2744	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
Token: SeDebugPrivilege	2744	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2640	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2576 wrote to memory of 2744	2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe	30
PID 2576 wrote to memory of 2744	2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe	30
PID 2576 wrote to memory of 2744	2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe	30
PID 2576 wrote to memory of 2744	2576	57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe	30
PID 2744 wrote to memory of 2640	2744	sbietrcl.exe	32
PID 2744 wrote to memory of 2640	2744	sbietrcl.exe	32
PID 2744 wrote to memory of 2640	2744	sbietrcl.exe	32
PID 2744 wrote to memory of 2640	2744	sbietrcl.exe	32
PID 2744 wrote to memory of 2640	2744	sbietrcl.exe	32
PID 2744 wrote to memory of 2640	2744	sbietrcl.exe	32
PID 2744 wrote to memory of 2640	2744	sbietrcl.exe	32
PID 2744 wrote to memory of 2640	2744	sbietrcl.exe	32
PID 2744 wrote to memory of 2640	2744	sbietrcl.exe	32
PID 2744 wrote to memory of 2640	2744	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe
"C:\Users\Admin\AppData\Local\Temp\57a5ddf02dc12ab93b8763a85a05ade94add0f51109a9bb532ddddcbfb957aee.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2576
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2744
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabC439.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
1.9MB

MD5
83d91bc64d3c936e4fdc07e92ac56873

SHA1
964c5e5ed8c5dd54d3d22d80f6b991de629e6fb1

SHA256
f68ad43d2a8aba558d171b6aa36e9f7e0d98c9ce5f8c24f6f6cc5791fbd97d80

SHA512
4a25124ce980ed3b3920171024ec9057e9fd221e5408261cef127075e29eacbc9e13a0c528cd047c2d17781546404134075c8fb3e14b35b2782998ca722ad5b3

Download Submit
memory/2576-2-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2576-1-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2576-10-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2576-11-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2576-29-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2576-0-0x0000000074221000-0x0000000074222000-memory.dmp

Filesize
4KB

Download
memory/2640-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2640-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2744-56-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2744-38-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2744-30-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2744-40-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download
memory/2744-39-0x0000000074220000-0x00000000747CB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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