remcos | e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad

General

Target

e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
Size

1.8MB
MD5

216efdc601e0cfdf9423dea7a8767143
SHA1

14045825bf5b8db0ac65c7c94ed7c7dfb62f06b1
SHA256

e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad
SHA512

a5ddc58640925c3bf80a4bd8a97a8f7a4486cf5146fdba480a6023eed5f8c7affd6802ff37224663c18f7ec0acc6a780a3fcced87e2b610907c93ecdf262e762
SSDEEP

24576:AD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjoo:Ap7E+QrFUBgq21

Score

10^/10

remcos host discovery persistence rat

Malware Config

Extracted

Family

remcos

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
Remcos family
remcos

Executes dropped EXE 2 IoCs

pid	Process
2808	sbietrcl.exe
2768	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe

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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 2768	2808	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 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	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
2808	sbietrcl.exe
2808	sbietrcl.exe
2808	sbietrcl.exe
2808	sbietrcl.exe
2808	sbietrcl.exe
2808	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
Token: SeDebugPrivilege	2808	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2808	2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe	31
PID 2296 wrote to memory of 2808	2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe	31
PID 2296 wrote to memory of 2808	2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe	31
PID 2296 wrote to memory of 2808	2296	e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe	31
PID 2808 wrote to memory of 2768	2808	sbietrcl.exe	32
PID 2808 wrote to memory of 2768	2808	sbietrcl.exe	32
PID 2808 wrote to memory of 2768	2808	sbietrcl.exe	32
PID 2808 wrote to memory of 2768	2808	sbietrcl.exe	32
PID 2808 wrote to memory of 2768	2808	sbietrcl.exe	32
PID 2808 wrote to memory of 2768	2808	sbietrcl.exe	32
PID 2808 wrote to memory of 2768	2808	sbietrcl.exe	32
PID 2808 wrote to memory of 2768	2808	sbietrcl.exe	32
PID 2808 wrote to memory of 2768	2808	sbietrcl.exe	32
PID 2808 wrote to memory of 2768	2808	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.exe
"C:\Users\Admin\AppData\Local\Temp\e2ea885f488456059c96c81a4bf58904323ade3f476ec4c717a43ebdb0955aad.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:2296
- 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:2808
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    PID:2768

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

Discovery

System Information Discovery

1

T1082

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\CabEC71.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
1.8MB

MD5
626a8323bc090d4d86543dc0d9e01c41

SHA1
9fd7cad654cb0d6490faaabf5ab90a3985a97e33

SHA256
68e4d2c838d5cf16c00badb792963753542c41cc34d9d33d2b011b7f762e9e54

SHA512
aa7f344c1ef82dc5ecaca83bab8c1b8d34db5c7fb9a61a361a0d463ae080f418c657391e0b59346afd5f3ee5d36be83ae99d5b06c688ca3543d3a89482e4a636

Download Submit
memory/2296-1-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2296-2-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2296-10-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2296-11-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2296-23-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2296-0-0x0000000074611000-0x0000000074612000-memory.dmp

Filesize
4KB

Download
memory/2296-30-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2768-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2768-41-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2768-43-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2768-54-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2768-49-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2768-47-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2768-45-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2808-39-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2808-40-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2808-31-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2808-57-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads