remcos | 5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379

General

Target

5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe
Size

1.8MB
MD5

0431be431ade102a44e8e3582c71f921
SHA1

98d00d419396a3ae5c844890b4ded9431ec9357a
SHA256

5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379
SHA512

feb2837771607dfca36f94d87988eed2212434fb7a21f54835483132aa81b82927d9b32589d42437521cb3e1fc566fce46067f4ee0f6753a65934afe4471d4a7
SSDEEP

24576:6D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjoE:6p7E+QrFUBgq2F

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
Remcos family
remcos

Executes dropped EXE 2 IoCs

pid	Process
2696	sbietrcl.exe
1628	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2696 set thread context of 1628	2696	sbietrcl.exe	31

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	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe
2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe
2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe
2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe
2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe
2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe
2696	sbietrcl.exe
2696	sbietrcl.exe
2696	sbietrcl.exe
2696	sbietrcl.exe
2696	sbietrcl.exe
2696	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe
Token: SeDebugPrivilege	2696	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1628	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2696	2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe	30
PID 2156 wrote to memory of 2696	2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe	30
PID 2156 wrote to memory of 2696	2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe	30
PID 2156 wrote to memory of 2696	2156	5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe	30
PID 2696 wrote to memory of 1628	2696	sbietrcl.exe	31
PID 2696 wrote to memory of 1628	2696	sbietrcl.exe	31
PID 2696 wrote to memory of 1628	2696	sbietrcl.exe	31
PID 2696 wrote to memory of 1628	2696	sbietrcl.exe	31
PID 2696 wrote to memory of 1628	2696	sbietrcl.exe	31
PID 2696 wrote to memory of 1628	2696	sbietrcl.exe	31
PID 2696 wrote to memory of 1628	2696	sbietrcl.exe	31
PID 2696 wrote to memory of 1628	2696	sbietrcl.exe	31
PID 2696 wrote to memory of 1628	2696	sbietrcl.exe	31
PID 2696 wrote to memory of 1628	2696	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.exe
"C:\Users\Admin\AppData\Local\Temp\5a775d8c281f0a20b40ae98a67c456c1114b5440b19efb621573f3ac2f0f6379.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:2156
- 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:2696
- - 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:1628

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\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
5a77de15b24d5a8c669e62d40ce46f4a

SHA1
8154d45571a46a6b4c3572dfcdbb766718987058

SHA256
198005a32e5ed6d16b31912845a58fa234a22ae635af2ea42b5e16282f3df445

SHA512
9c5f1b9313a395eb1d769337b1b523fbe0d300d835e475af1ec4f85edc7241327a9c2f64012ca9b3490153648d30ec04428ba2d0373f5b635c249ed597d6cd3a

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab7253.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
6524c38d82fa273bf713e935c2a8a072

SHA1
704054e22d3101a87c0f1cce823d6bc2893184eb

SHA256
ae321da88cf6a1982ac8820ace987797c35e7dcd13ced5eb077ca40f33ad17b7

SHA512
9d16e9afe471ec6b91ed19e298f2d9a1f16a4ce7707bbbe8b30cf72783e91328515150e1e18138ea9f4583b19c6e5f95fe317a25182fe6d8e19173a5a345bfd5

Download Submit
memory/1628-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1628-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1628-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1628-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1628-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1628-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1628-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1628-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1628-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1628-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1628-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1628-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1628-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2156-0-0x0000000074891000-0x0000000074892000-memory.dmp

Filesize
4KB

Download
memory/2156-30-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2156-1-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2156-11-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2156-12-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2696-42-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2696-41-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2696-31-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2696-32-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2696-63-0x0000000074890000-0x0000000074E3B000-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