remcos | f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b

General

Target

7b9844639ef183122af8383ce901b8e0.exe
Size

908KB
MD5

7b9844639ef183122af8383ce901b8e0
SHA1

87514d622f74e94720cd77243326dd8c8217dfae
SHA256

f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b
SHA512

c98ad33821fbe4f71480a3ea36133d47dafbbb41dda3c3dc31ff4d6755491ea42a5418179e3f7f9d27fddb55a9b933ae221650b850a53096c6a216d39e151bf0
SSDEEP

24576:XO++gHdGXYcihGy+XKjHjjxHqHlngC9fnfyQ5G/:XO++gHdGXYcT7XkjFHqHlgY6/

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.3.101.137:5980

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-DO8TMQ
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2920	powershell.exe
1632	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1900 set thread context of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36

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 5 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7b9844639ef183122af8383ce901b8e0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7b9844639ef183122af8383ce901b8e0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2776	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
1900	7b9844639ef183122af8383ce901b8e0.exe
2920	powershell.exe
1632	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1900	7b9844639ef183122af8383ce901b8e0.exe
Token: SeDebugPrivilege	2920	powershell.exe
Token: SeDebugPrivilege	1632	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2948	7b9844639ef183122af8383ce901b8e0.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 2920	1900	7b9844639ef183122af8383ce901b8e0.exe	30
PID 1900 wrote to memory of 2920	1900	7b9844639ef183122af8383ce901b8e0.exe	30
PID 1900 wrote to memory of 2920	1900	7b9844639ef183122af8383ce901b8e0.exe	30
PID 1900 wrote to memory of 2920	1900	7b9844639ef183122af8383ce901b8e0.exe	30
PID 1900 wrote to memory of 1632	1900	7b9844639ef183122af8383ce901b8e0.exe	32
PID 1900 wrote to memory of 1632	1900	7b9844639ef183122af8383ce901b8e0.exe	32
PID 1900 wrote to memory of 1632	1900	7b9844639ef183122af8383ce901b8e0.exe	32
PID 1900 wrote to memory of 1632	1900	7b9844639ef183122af8383ce901b8e0.exe	32
PID 1900 wrote to memory of 2776	1900	7b9844639ef183122af8383ce901b8e0.exe	33
PID 1900 wrote to memory of 2776	1900	7b9844639ef183122af8383ce901b8e0.exe	33
PID 1900 wrote to memory of 2776	1900	7b9844639ef183122af8383ce901b8e0.exe	33
PID 1900 wrote to memory of 2776	1900	7b9844639ef183122af8383ce901b8e0.exe	33
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36
PID 1900 wrote to memory of 2948	1900	7b9844639ef183122af8383ce901b8e0.exe	36

C:\Users\Admin\AppData\Local\Temp\7b9844639ef183122af8383ce901b8e0.exe
"C:\Users\Admin\AppData\Local\Temp\7b9844639ef183122af8383ce901b8e0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\7b9844639ef183122af8383ce901b8e0.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2920
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JhWUOJ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1632
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JhWUOJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDFB5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2776
- C:\Users\Admin\AppData\Local\Temp\7b9844639ef183122af8383ce901b8e0.exe
  "C:\Users\Admin\AppData\Local\Temp\7b9844639ef183122af8383ce901b8e0.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
7f4d40928d57d253712d6b97c45a1cb9

SHA1
c8001555b41852c09429541f5494fb3a6daaaf78

SHA256
0239f37a6a5cea1faca9bc9ead9c4cb4ec93d586ca871f2ad517d52bd244b8a6

SHA512
336b99214b0cc0701e01c395c6ac130927c515452990074723c21f17f5d2f31ef8a81eb6e3817adae3ce60573a80e294a62fbf3d980a9e4053b4c0c0a4f3931d

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDFB5.tmp

Filesize
1KB

MD5
d279c34233d1f40d20fd3cfecfccc9ca

SHA1
ad6a64724b9262fa40f8c6611bdf9981dd06cc95

SHA256
dada39750b0f9ea67019f09013e3363a8d890b3b01e2ea64f58065b2444fad0b

SHA512
e4066e6228cbefbb138e57c9183c402fb2338e86e294af1c751252163d0e41871af599e1423f5da1725e241606602f62a6ba9d43ff510de4f84d607597deec6c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
baa7f5a530be78a9fb0d5ba58691a44a

SHA1
025f5cefd2c3944fc576c19b39daef3293914443

SHA256
8318527402f6c8c81a00fcaa19275c7b79e758e40a974f727dc4d04bfd44754a

SHA512
82afcb7870b9cf6b5e1132994e68f0a6214b30b2ad249d6fcbfadaf7c136c5513375ff9415e6828d2296c90c09c824e9207453dc4979b5fc9a1a873856bdaeb7

Download Submit
memory/1900-0-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/1900-1-0x0000000001060000-0x000000000114A000-memory.dmp

Filesize
936KB

Download
memory/1900-2-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1900-3-0x00000000004D0000-0x00000000004E0000-memory.dmp

Filesize
64KB

Download
memory/1900-4-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/1900-5-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1900-6-0x00000000057A0000-0x0000000005860000-memory.dmp

Filesize
768KB

Download
memory/1900-43-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/2948-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2948-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2948-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads