remcos | 6474ef699648b5f34d8739a9a102836b27e4dcfe718404fcd09a428d2e89a973

General

Target

Pago_BBVA.pdf.bat.exe
Size

972KB
MD5

a035a6cfbe07dadcd1a4f89cc77d99b0
SHA1

ab53ba007f55daefb7dbf7d82fa135fe3046a208
SHA256

6474ef699648b5f34d8739a9a102836b27e4dcfe718404fcd09a428d2e89a973
SHA512

d03baddf8283857fa4bd61cb3b279413761143605a9bc2a26e7303ac9cf125cff5d2c263ca97e30e79928c839d5ad617bb2328f615d445ad81d05771e49a010b
SSDEEP

12288:5umVWXiUJmBCk1sV2tfIUFspQ2zgKZhKV9+xhJJPeWiHD7aqZMJkR:hifJmBPfepFgahKmJejcU

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

162.251.122.76:7119

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-P2SX34
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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

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
3000	powershell.exe
2808	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1744 set thread context of 2628	1744	Pago_BBVA.pdf.bat.exe	35

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	Pago_BBVA.pdf.bat.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Pago_BBVA.pdf.bat.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2696	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1744	Pago_BBVA.pdf.bat.exe
1744	Pago_BBVA.pdf.bat.exe
1744	Pago_BBVA.pdf.bat.exe
1744	Pago_BBVA.pdf.bat.exe
1744	Pago_BBVA.pdf.bat.exe
1744	Pago_BBVA.pdf.bat.exe
1744	Pago_BBVA.pdf.bat.exe
3000	powershell.exe
2808	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1744	Pago_BBVA.pdf.bat.exe
Token: SeDebugPrivilege	3000	powershell.exe
Token: SeDebugPrivilege	2808	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 3000	1744	Pago_BBVA.pdf.bat.exe	29
PID 1744 wrote to memory of 3000	1744	Pago_BBVA.pdf.bat.exe	29
PID 1744 wrote to memory of 3000	1744	Pago_BBVA.pdf.bat.exe	29
PID 1744 wrote to memory of 3000	1744	Pago_BBVA.pdf.bat.exe	29
PID 1744 wrote to memory of 2808	1744	Pago_BBVA.pdf.bat.exe	31
PID 1744 wrote to memory of 2808	1744	Pago_BBVA.pdf.bat.exe	31
PID 1744 wrote to memory of 2808	1744	Pago_BBVA.pdf.bat.exe	31
PID 1744 wrote to memory of 2808	1744	Pago_BBVA.pdf.bat.exe	31
PID 1744 wrote to memory of 2696	1744	Pago_BBVA.pdf.bat.exe	32
PID 1744 wrote to memory of 2696	1744	Pago_BBVA.pdf.bat.exe	32
PID 1744 wrote to memory of 2696	1744	Pago_BBVA.pdf.bat.exe	32
PID 1744 wrote to memory of 2696	1744	Pago_BBVA.pdf.bat.exe	32
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35
PID 1744 wrote to memory of 2628	1744	Pago_BBVA.pdf.bat.exe	35

C:\Users\Admin\AppData\Local\Temp\Pago_BBVA.pdf.bat.exe
"C:\Users\Admin\AppData\Local\Temp\Pago_BBVA.pdf.bat.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1744
- 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\Pago_BBVA.pdf.bat.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3000
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZxiJIiRCztV.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2808
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZxiJIiRCztV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAD40.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2696
- C:\Users\Admin\AppData\Local\Temp\Pago_BBVA.pdf.bat.exe
  "C:\Users\Admin\AppData\Local\Temp\Pago_BBVA.pdf.bat.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2628

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:\Users\Admin\AppData\Local\Temp\tmpAD40.tmp

Filesize
1KB

MD5
d4ca456857333b02d4bc1ef6c9192c5c

SHA1
5be4ce4825f808376652ce33bc0b8020748a1097

SHA256
4e51fc82f5d0ba64d003581dba6255a579cd5331a8c330953a4f31ca5ecbb145

SHA512
9d7211f4b592563731b51fc0dc2a9afb78cfc68b8b123c4e7e80558949292b1de38ce9671d15d08f07bd029e13398ab9b3e3b4e81c0e59016e888e3c57b9ce7e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\0H2BNQW2QEOJ7S23CVMX.temp

Filesize
7KB

MD5
c0cdd49056bbb79570367b5c0dc976a4

SHA1
1d7eccc8b38d28ed6db1f7ac4108c3fb7202e404

SHA256
535aff07fd36b7ca5f329e3a3421e5f93547c5620561c79c7464d3b7ee88f242

SHA512
378283a1fbf3b60f9a514e7e6538234cd7424741d110c05b315ea31ef54bf8c15d3c9f86fe65ebf68940bdcfe505031a39a3fc9c3806017f5c45957909ad0a52

Download Submit
memory/1744-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/1744-1-0x0000000001220000-0x0000000001314000-memory.dmp

Filesize
976KB

Download
memory/1744-2-0x0000000074C90000-0x000000007537E000-memory.dmp

Filesize
6.9MB

Download
memory/1744-3-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/1744-4-0x0000000074C90000-0x000000007537E000-memory.dmp

Filesize
6.9MB

Download
memory/1744-5-0x00000000003D0000-0x00000000003E2000-memory.dmp

Filesize
72KB

Download
memory/1744-6-0x0000000005C40000-0x0000000005D00000-memory.dmp

Filesize
768KB

Download
memory/1744-40-0x0000000074C90000-0x000000007537E000-memory.dmp

Filesize
6.9MB

Download
memory/2628-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads