remcos | e239f8f3c44baa845f1b8c51bea11adbf0c586e70cc866dfd267f14d495c9db4

General

Target

Quotation.exe
Size

987KB
MD5

1058789883ec68a66fc099d6cc6fefb9
SHA1

9137b35e3480c2f9fc873e351851d421d8d195d9
SHA256

cff8bf19e834f403b7914c1fae20c0089b2a75a29a769c1e46aa3bb234171d1b
SHA512

54c024fe605a2ac68d5662e20bbb2c8695b8a13dac14e9d9571f001d2f949ffde0fb0a5152e03122336b58390d6e644d35a685a20c7d2f26a6bbcbb50106a4c7
SSDEEP

24576:ovpBEkDWCvU7Ep0EWh04DMRukIFAb4E6T:ovIkDpvU7vtrgI/FAbh6T

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
2108	powershell.exe
2852	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1224 set thread context of 2608	1224	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	Quotation.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
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
2868	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1224	Quotation.exe
1224	Quotation.exe
1224	Quotation.exe
1224	Quotation.exe
1224	Quotation.exe
1224	Quotation.exe
1224	Quotation.exe
2108	powershell.exe
2852	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1224	Quotation.exe
Token: SeDebugPrivilege	2108	powershell.exe
Token: SeDebugPrivilege	2852	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1224 wrote to memory of 2108	1224	Quotation.exe	31
PID 1224 wrote to memory of 2108	1224	Quotation.exe	31
PID 1224 wrote to memory of 2108	1224	Quotation.exe	31
PID 1224 wrote to memory of 2108	1224	Quotation.exe	31
PID 1224 wrote to memory of 2852	1224	Quotation.exe	33
PID 1224 wrote to memory of 2852	1224	Quotation.exe	33
PID 1224 wrote to memory of 2852	1224	Quotation.exe	33
PID 1224 wrote to memory of 2852	1224	Quotation.exe	33
PID 1224 wrote to memory of 2868	1224	Quotation.exe	34
PID 1224 wrote to memory of 2868	1224	Quotation.exe	34
PID 1224 wrote to memory of 2868	1224	Quotation.exe	34
PID 1224 wrote to memory of 2868	1224	Quotation.exe	34
PID 1224 wrote to memory of 2608	1224	Quotation.exe	37
PID 1224 wrote to memory of 2608	1224	Quotation.exe	37
PID 1224 wrote to memory of 2608	1224	Quotation.exe	37
PID 1224 wrote to memory of 2608	1224	Quotation.exe	37
PID 1224 wrote to memory of 2608	1224	Quotation.exe	37
PID 1224 wrote to memory of 2608	1224	Quotation.exe	37
PID 1224 wrote to memory of 2608	1224	Quotation.exe	37
PID 1224 wrote to memory of 2608	1224	Quotation.exe	37
PID 1224 wrote to memory of 2608	1224	Quotation.exe	37
PID 1224 wrote to memory of 2608	1224	Quotation.exe	37
PID 1224 wrote to memory of 2608	1224	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:1224
- 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:2108
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xPfbiDW.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2852
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xPfbiDW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp455A.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2868
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2608

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\tmp455A.tmp

Filesize
1KB

MD5
3e59ccb8354631523d2f614f1e45e4bc

SHA1
2dd4240ec20c2bca68a5827491279a2e3e4ecd31

SHA256
5fde3f17719b2f4c762bb8af90ded999431c1a2fcd388b9542d466e9cdde7c3f

SHA512
62a90a6fc90d0fdf2be80616449a476e53b8da4d9d54ce0eaeb684ea1a6fd9589a97101294632f60e9d331f028f88c3b8b5ed7b227334cba2ad7f4a9dfbfc814

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\FXTYHN586V51BSEEP7M6.temp

Filesize
7KB

MD5
6bdeb5e529cbc37d847a7e6d5dfaee65

SHA1
fd403e12267cd378362e12e44a03976d4d5cb95e

SHA256
199a53ec38a2797c84cdeafa6c358124cdeab2bd82cb043e78ea16f25d20513f

SHA512
94ccd3c25a35df50832d5c19debce9559806d13aabc32db731d18cd6173baae393299e7d391575aa14f867f6569a9cb8942887f4793bbf23f370eadafc8f4b7a

Download Submit
memory/1224-0-0x000000007424E000-0x000000007424F000-memory.dmp

Filesize
4KB

Download
memory/1224-1-0x0000000000AC0000-0x0000000000BBE000-memory.dmp

Filesize
1016KB

Download
memory/1224-2-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/1224-3-0x00000000004E0000-0x00000000004FE000-memory.dmp

Filesize
120KB

Download
memory/1224-4-0x000000007424E000-0x000000007424F000-memory.dmp

Filesize
4KB

Download
memory/1224-5-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/1224-6-0x0000000005C70000-0x0000000005D34000-memory.dmp

Filesize
784KB

Download
memory/1224-36-0x0000000074240000-0x000000007492E000-memory.dmp

Filesize
6.9MB

Download
memory/2608-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2608-19-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-43-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-42-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-44-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-50-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-51-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-52-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-56-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-57-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2608-58-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads