remcos | b006a224fd6aaf4f45486c8fa33b4bf4758dfb5bc904aad2e75400ed2f4b5b22

General

Target

Quotation.exe
Size

979KB
MD5

8659cc0ca704216852186a28d5f0c90d
SHA1

957cd1e290abc9977a99be7d460d1d77e1aa0fda
SHA256

b006a224fd6aaf4f45486c8fa33b4bf4758dfb5bc904aad2e75400ed2f4b5b22
SHA512

589239fbe4d2e5416650e924f185e96bb9bae0a0b11d37f4ff52a263f985c78082f304ba046979a23d98f7d6b4f4bf7cd9a44d8608a726e758aaaa982f7e998d
SSDEEP

24576:nkgzVXgT3xKSTd2vTKksbMpu2uUOvuYQFEvIg:RgjxKSTd2eFbMoTmBWvR

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

23.95.235.18:2557

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-E0JKXE
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
2836	powershell.exe
2768	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2384 set thread context of 2676	2384	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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.exe
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

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
2952	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2384	Quotation.exe
2384	Quotation.exe
2384	Quotation.exe
2384	Quotation.exe
2384	Quotation.exe
2384	Quotation.exe
2384	Quotation.exe
2836	powershell.exe
2768	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2384	Quotation.exe
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeDebugPrivilege	2768	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2836	2384	Quotation.exe	31
PID 2384 wrote to memory of 2836	2384	Quotation.exe	31
PID 2384 wrote to memory of 2836	2384	Quotation.exe	31
PID 2384 wrote to memory of 2836	2384	Quotation.exe	31
PID 2384 wrote to memory of 2768	2384	Quotation.exe	33
PID 2384 wrote to memory of 2768	2384	Quotation.exe	33
PID 2384 wrote to memory of 2768	2384	Quotation.exe	33
PID 2384 wrote to memory of 2768	2384	Quotation.exe	33
PID 2384 wrote to memory of 2952	2384	Quotation.exe	34
PID 2384 wrote to memory of 2952	2384	Quotation.exe	34
PID 2384 wrote to memory of 2952	2384	Quotation.exe	34
PID 2384 wrote to memory of 2952	2384	Quotation.exe	34
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	Quotation.exe	37
PID 2384 wrote to memory of 2676	2384	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:2384
- 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:2836
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RqGYPgyjgV.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2768
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RqGYPgyjgV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF24B.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2952
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2676

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\tmpF24B.tmp

Filesize
1KB

MD5
d89130f4e1b4f6c33091f01fbf41a9ec

SHA1
135bbae563cd0dc3e21fb6073735a85f1eec1fb4

SHA256
07426a8420381333784cea0c2d7d53dc11552f41c9259712e1f7d735ae66c4f7

SHA512
25ae5464af2bebfcea673da2a4dd6ab7061a0805b672a68a531be5bd56972823b440ed2e41db86596dd87f7e73fafeb0e3a4d51017d3527ea1d015557cf73b47

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\SUUWMCHPMCOO9AYFJAX6.temp

Filesize
7KB

MD5
40eb230ed296a1077d0f841a632b35aa

SHA1
9a3e8cf58616548118d31c6c815a3d4cf6c3a0e1

SHA256
a10658848b86f04c837ce7a41533cd97a20371b303294ee22be2911bc0807b25

SHA512
066ff58c9de2086e804d2bc46ea95761c3112dac847b706e4540b5f1ae1a2f5fa9cc2025fb7c33174b63f4c846756b2ef4d2e15d01e5ba1004588da081e12a46

Download Submit
memory/2384-40-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2384-1-0x0000000000940000-0x0000000000A38000-memory.dmp

Filesize
992KB

Download
memory/2384-2-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2384-3-0x0000000001E40000-0x0000000001E58000-memory.dmp

Filesize
96KB

Download
memory/2384-4-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2384-5-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2384-6-0x00000000059D0000-0x0000000005A90000-memory.dmp

Filesize
768KB

Download
memory/2384-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2676-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2676-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2676-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads