remcos | 5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd

General

Target

5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
Size

913KB
MD5

5a1a4200ce20d69530ca2b5ea575ef4a
SHA1

00e5d156420606a6ee6da8b37f11f5a561376146
SHA256

5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd
SHA512

7f46f8ab217230a031cfdd377833dfd416d2a64be9ebfd289faba9bbabb77347697d3404faaa72e01e262f6d25277a87ca18f64fe2e7240aa883684f150d82db
SSDEEP

24576:rRAaN6zclYJQqEllY8ZE0TdGuHSbSnsUQKnBgfzoP:rRXscmJXV0tsInB4

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.3.243.155:7643

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-C9YEJ8
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
3064	powershell.exe
2512	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1904 set thread context of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.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
2740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2512	powershell.exe
3064	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3064	powershell.exe
Token: SeDebugPrivilege	2512	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2892	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 3064	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	30
PID 1904 wrote to memory of 3064	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	30
PID 1904 wrote to memory of 3064	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	30
PID 1904 wrote to memory of 3064	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	30
PID 1904 wrote to memory of 2512	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	32
PID 1904 wrote to memory of 2512	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	32
PID 1904 wrote to memory of 2512	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	32
PID 1904 wrote to memory of 2512	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	32
PID 1904 wrote to memory of 2740	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	33
PID 1904 wrote to memory of 2740	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	33
PID 1904 wrote to memory of 2740	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	33
PID 1904 wrote to memory of 2740	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	33
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36
PID 1904 wrote to memory of 2892	1904	5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe	36

C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
"C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1904
- 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\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3064
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OzYxABbJ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2512
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OzYxABbJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBF88.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2740
- C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe
  "C:\Users\Admin\AppData\Local\Temp\5df39d87a6c1cb5faf24da06fb3d3fd255544f3d04895f395d764307643eb8bd.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2892

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
4975b803a3ce34f1c6c0233761c45e34

SHA1
6b8b2aa73067ad5cecfbc5ee41f227ee0b438bff

SHA256
62e804235222f767df56d520a4f7fa6f3d4f41bf443c1ee6fc3e6d5e93048aaa

SHA512
0fd1841d28a3299114e9283347e902f4a94be4c57aa89fd1fc9eb42d8562e475d33220803ee7a20848c11f108655e698ded7c6e8e1236cdc211436ee1f385568

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBF88.tmp

Filesize
1KB

MD5
7453ad1b4153075d741cd1ce21d3fd2e

SHA1
90497b4ea733078ecba322c89df84a93e5464d4a

SHA256
10fcce42cd2b90fc9cf2162a869ceab4a768c25c1e33a9e680801e0c59a6e0e2

SHA512
b2abe477381047efc711a3b93b02923afcd21b026a12edb420b9662e2d90d087f2a158abacece925e00da8fb2db0a139303c49ef97cdbe1685289cd3ea144a8d

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

Filesize
7KB

MD5
e5fda0f8d5ffa237032ed612321c127d

SHA1
9601ec8afd733a2ed6c1d84a379e72c2a205fdbf

SHA256
04aa3ec89fafabf6e827e51e87ecbd74b168bd85a6eec84dfd481818f253b52b

SHA512
0a1fae8fea4561200d5a6cb2116fbf02f82d084671cd26f61f5dc2a0a13c1fecf47de1c50ae1cb1f50578fd54fcf3db923bc0ea3c5c2e60e906a1c82505e34e1

Download Submit
memory/1904-43-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1904-1-0x0000000000F60000-0x000000000104A000-memory.dmp

Filesize
936KB

Download
memory/1904-2-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1904-3-0x0000000000440000-0x0000000000458000-memory.dmp

Filesize
96KB

Download
memory/1904-4-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/1904-5-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1904-6-0x0000000005A50000-0x0000000005B10000-memory.dmp

Filesize
768KB

Download
memory/1904-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2892-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads