remcos | ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88

General

Target

ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe
Size

2.2MB
MD5

2ba978739de23b8c1502b939ee968f80
SHA1

02d2c80bb2ab4fe45e4a5740b8b6d648595d84d5
SHA256

ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88
SHA512

b3e6eca7351571838fe6ba46c73552836972b9fd1d9313164a79b5540db7bbdcd80345ae4f8e0ac341a2012240267e78d021f953c09c8840ffe01e1d7bfe8169
SSDEEP

24576:HD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJjRHc:Hp7E+QrFUBgq2SnJc

Score

10^/10

remcos host 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

Executes dropped EXE 2 IoCs

pid	Process
2756	sbietrcl.exe
2456	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2456	2756	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	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.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
2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe
2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe
2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe
2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe
2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe
2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe
2756	sbietrcl.exe
2756	sbietrcl.exe
2756	sbietrcl.exe
2756	sbietrcl.exe
2756	sbietrcl.exe
2756	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe
Token: SeDebugPrivilege	2756	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2456	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2756	2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe	31
PID 2636 wrote to memory of 2756	2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe	31
PID 2636 wrote to memory of 2756	2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe	31
PID 2636 wrote to memory of 2756	2636	ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe	31
PID 2756 wrote to memory of 2456	2756	sbietrcl.exe	32
PID 2756 wrote to memory of 2456	2756	sbietrcl.exe	32
PID 2756 wrote to memory of 2456	2756	sbietrcl.exe	32
PID 2756 wrote to memory of 2456	2756	sbietrcl.exe	32
PID 2756 wrote to memory of 2456	2756	sbietrcl.exe	32
PID 2756 wrote to memory of 2456	2756	sbietrcl.exe	32
PID 2756 wrote to memory of 2456	2756	sbietrcl.exe	32
PID 2756 wrote to memory of 2456	2756	sbietrcl.exe	32
PID 2756 wrote to memory of 2456	2756	sbietrcl.exe	32
PID 2756 wrote to memory of 2456	2756	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.exe
"C:\Users\Admin\AppData\Local\Temp\ac9b3940156f969f14c8fef3a5045a78a73b01688f26c4382b1a9d33d56b1d88N.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:2636
- 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:2756
- - 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:2456

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\CabFFA3.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
2.2MB

MD5
378920cb819f8a421ffd7db0a8abf36a

SHA1
e18825bcd9c5e1bc7f14c23a6a841df10f9b3ccd

SHA256
3ca11c4a53a20796341723e64d5190b978ae6ac2b748156cc9e8fd1fcf09cfc2

SHA512
d819c6030f8efb53d3ce61ac7db348da45efc8015453423f0a43f3b2a47212415d2879920883215cc460848f617498bef259533a7e23be09a16cad8faadff1a8

Download Submit
memory/2456-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2456-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2456-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2456-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2456-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2456-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2456-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2456-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2456-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2456-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2456-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2456-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2456-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2636-2-0x0000000074FA0000-0x000000007554B000-memory.dmp

Filesize
5.7MB

Download
memory/2636-0-0x0000000074FA1000-0x0000000074FA2000-memory.dmp

Filesize
4KB

Download
memory/2636-10-0x0000000074FA0000-0x000000007554B000-memory.dmp

Filesize
5.7MB

Download
memory/2636-29-0x0000000074FA0000-0x000000007554B000-memory.dmp

Filesize
5.7MB

Download
memory/2636-1-0x0000000074FA0000-0x000000007554B000-memory.dmp

Filesize
5.7MB

Download
memory/2636-11-0x0000000074FA0000-0x000000007554B000-memory.dmp

Filesize
5.7MB

Download
memory/2756-40-0x0000000074FA0000-0x000000007554B000-memory.dmp

Filesize
5.7MB

Download
memory/2756-39-0x0000000074FA0000-0x000000007554B000-memory.dmp

Filesize
5.7MB

Download
memory/2756-56-0x0000000074FA0000-0x000000007554B000-memory.dmp

Filesize
5.7MB

Download
memory/2756-38-0x0000000074FA0000-0x000000007554B000-memory.dmp

Filesize
5.7MB

Download
memory/2756-30-0x0000000074FA0000-0x000000007554B000-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