remcos | ad4f75bf5c5c17daac7ca207b38dea31a9c56d40692a5a0e5537e6f1bd61c719

General

Target

0e695ab472c053c536729db98e2d0830N.exe
Size

1.8MB
MD5

0e695ab472c053c536729db98e2d0830
SHA1

9dd4ce8698d49e6841787b000aa6ea31e115eb75
SHA256

ad4f75bf5c5c17daac7ca207b38dea31a9c56d40692a5a0e5537e6f1bd61c719
SHA512

73cd3231054a5bb2828f94720d00d3ee2c8a17352041941459f32fa991214d8bc2881f98309ee3997cb92da2a441aed78eaa7a85a803ed2defa66fcd33c689c0
SSDEEP

24576:lD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73Ab:lp7E+QrFUBgq2Z

Score

10^/10

remcos host 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

Executes dropped EXE 2 IoCs

pid	Process
2664	sbietrcl.exe
2704	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2500	0e695ab472c053c536729db98e2d0830N.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-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	0e695ab472c053c536729db98e2d0830N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2664 set thread context of 2704	2664	sbietrcl.exe	32

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2500	0e695ab472c053c536729db98e2d0830N.exe
2500	0e695ab472c053c536729db98e2d0830N.exe
2500	0e695ab472c053c536729db98e2d0830N.exe
2500	0e695ab472c053c536729db98e2d0830N.exe
2500	0e695ab472c053c536729db98e2d0830N.exe
2500	0e695ab472c053c536729db98e2d0830N.exe
2664	sbietrcl.exe
2664	sbietrcl.exe
2664	sbietrcl.exe
2664	sbietrcl.exe
2664	sbietrcl.exe
2664	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2500	0e695ab472c053c536729db98e2d0830N.exe
Token: SeDebugPrivilege	2664	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2664	2500	0e695ab472c053c536729db98e2d0830N.exe	31
PID 2500 wrote to memory of 2664	2500	0e695ab472c053c536729db98e2d0830N.exe	31
PID 2500 wrote to memory of 2664	2500	0e695ab472c053c536729db98e2d0830N.exe	31
PID 2500 wrote to memory of 2664	2500	0e695ab472c053c536729db98e2d0830N.exe	31
PID 2664 wrote to memory of 2704	2664	sbietrcl.exe	32
PID 2664 wrote to memory of 2704	2664	sbietrcl.exe	32
PID 2664 wrote to memory of 2704	2664	sbietrcl.exe	32
PID 2664 wrote to memory of 2704	2664	sbietrcl.exe	32
PID 2664 wrote to memory of 2704	2664	sbietrcl.exe	32
PID 2664 wrote to memory of 2704	2664	sbietrcl.exe	32
PID 2664 wrote to memory of 2704	2664	sbietrcl.exe	32
PID 2664 wrote to memory of 2704	2664	sbietrcl.exe	32
PID 2664 wrote to memory of 2704	2664	sbietrcl.exe	32
PID 2664 wrote to memory of 2704	2664	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\0e695ab472c053c536729db98e2d0830N.exe
"C:\Users\Admin\AppData\Local\Temp\0e695ab472c053c536729db98e2d0830N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2500
- 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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2664
- - 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:2704

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabDD06.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
954156386b6321b173e6c6e208f56b80

SHA1
d6a76f4d9583bc7c856064ccd735e9bae8bda941

SHA256
2d46423b0566bce09f82b9f0d070ab91553202ca7dedaa06b79ba2366de5d636

SHA512
f14e86103754dd233f7a24ae3928411effb275a4fea651db75d80ab112cd63cc01a74a87b2cebce23c5ef30d90666c24c6cdcf2e5254ff6a569c1adddb42e127

Download Submit
memory/2500-0-0x0000000074BE1000-0x0000000074BE2000-memory.dmp

Filesize
4KB

Download
memory/2500-11-0x0000000074BE0000-0x000000007518B000-memory.dmp

Filesize
5.7MB

Download
memory/2500-2-0x0000000074BE0000-0x000000007518B000-memory.dmp

Filesize
5.7MB

Download
memory/2500-29-0x0000000074BE0000-0x000000007518B000-memory.dmp

Filesize
5.7MB

Download
memory/2500-10-0x0000000074BE0000-0x000000007518B000-memory.dmp

Filesize
5.7MB

Download
memory/2500-1-0x0000000074BE0000-0x000000007518B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-53-0x0000000074BE0000-0x000000007518B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-30-0x0000000074BE0000-0x000000007518B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-38-0x0000000074BE0000-0x000000007518B000-memory.dmp

Filesize
5.7MB

Download
memory/2664-39-0x0000000074BE0000-0x000000007518B000-memory.dmp

Filesize
5.7MB

Download
memory/2704-40-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2704-47-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-46-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2704-45-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2704-43-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2704-42-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2704-50-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads