remcos | 1efe29ca00c9e7c69c46dc8139204716a36b6074647f3ec4fb06e2ac6576d496

General

Target

Quotation.exe
Size

990KB
MD5

ba0b6a9d6f493e8d718bbf796214900a
SHA1

0ac69c8653301edaca3beb1425b153689450a94e
SHA256

1efe29ca00c9e7c69c46dc8139204716a36b6074647f3ec4fb06e2ac6576d496
SHA512

ca401de6afbda29aec66bd0d03ab677790e3916b5b11c25a5326924c9a93df76dc82d909cc8bcf05db68e8753990ab4b8bb83016a6ef1cba43e0460113fd2195
SSDEEP

24576:2/J4LmzwMnIKb2RTysbOfUgZPLDxXWhFNA9V80Th6BqvRZe:MrDnIFReDfUgZPhVTM0pZ

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

2.58.56.182:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-GM05WY
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
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
856	powershell.exe
2824	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1836 set thread context of 1900	1836	Quotation.exe	37

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.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
2876	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1836	Quotation.exe
1836	Quotation.exe
2824	powershell.exe
856	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1836	Quotation.exe
Token: SeDebugPrivilege	2824	powershell.exe
Token: SeDebugPrivilege	856	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 856	1836	Quotation.exe	31
PID 1836 wrote to memory of 856	1836	Quotation.exe	31
PID 1836 wrote to memory of 856	1836	Quotation.exe	31
PID 1836 wrote to memory of 856	1836	Quotation.exe	31
PID 1836 wrote to memory of 2824	1836	Quotation.exe	33
PID 1836 wrote to memory of 2824	1836	Quotation.exe	33
PID 1836 wrote to memory of 2824	1836	Quotation.exe	33
PID 1836 wrote to memory of 2824	1836	Quotation.exe	33
PID 1836 wrote to memory of 2876	1836	Quotation.exe	34
PID 1836 wrote to memory of 2876	1836	Quotation.exe	34
PID 1836 wrote to memory of 2876	1836	Quotation.exe	34
PID 1836 wrote to memory of 2876	1836	Quotation.exe	34
PID 1836 wrote to memory of 1900	1836	Quotation.exe	37
PID 1836 wrote to memory of 1900	1836	Quotation.exe	37
PID 1836 wrote to memory of 1900	1836	Quotation.exe	37
PID 1836 wrote to memory of 1900	1836	Quotation.exe	37
PID 1836 wrote to memory of 1900	1836	Quotation.exe	37
PID 1836 wrote to memory of 1900	1836	Quotation.exe	37
PID 1836 wrote to memory of 1900	1836	Quotation.exe	37
PID 1836 wrote to memory of 1900	1836	Quotation.exe	37
PID 1836 wrote to memory of 1900	1836	Quotation.exe	37
PID 1836 wrote to memory of 1900	1836	Quotation.exe	37
PID 1836 wrote to memory of 1900	1836	Quotation.exe	37

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1836
- 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\Quotation.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:856
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DUvXyihvzUp.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2824
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DUvXyihvzUp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF67F.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2876
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1900

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\tmpF67F.tmp

Filesize
1KB

MD5
f26ffa82095cf5b23b393b2bc63a3539

SHA1
8b95e2732c13e4525785402232727d5bf620b4a5

SHA256
142b414c06999fb8b39bf1483a892efb98dbc45712edc737dea597bf8261db6c

SHA512
fc4ce9895e05458fde3c47aa6b030582a488040ee8e4d8251253df3ed660742c3d6035f850dc5711cbdd5f42bc3d922328ecd90fa90da0f150c3d2ad748f2067

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

Filesize
7KB

MD5
2e1c74fd6b20e4b4cf624e74097e2ab6

SHA1
1f13a8b1111129298927b9064f4967596fbd2d7f

SHA256
d996a118a4ce15df8b7e9a8173dccda25e1840fbc8a2be0ee12b4e229b856213

SHA512
fa31f78933342fc0a3024e9dc68872d93b035418c0e8e72bdc0493c07f26fa177f96d41d165476f03a688802e39493104a3608bbad96b129de50897ec197c049

Download Submit
memory/1836-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/1836-1-0x0000000001070000-0x000000000116E000-memory.dmp

Filesize
1016KB

Download
memory/1836-2-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/1836-3-0x0000000000A10000-0x0000000000A2E000-memory.dmp

Filesize
120KB

Download
memory/1836-4-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

Filesize
4KB

Download
memory/1836-5-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/1836-6-0x000000000A880000-0x000000000A944000-memory.dmp

Filesize
784KB

Download
memory/1836-36-0x0000000074DE0000-0x00000000754CE000-memory.dmp

Filesize
6.9MB

Download
memory/1900-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1900-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-19-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-40-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-41-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-42-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-43-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-44-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1900-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads